Further Planetary Mills

 
 

FURTHER PRODUCT GROUPS

 
 

Planetary Mill

PULVERISETTE 5/2

classic line

Order No.
05.6020.00
Accessories

Please note: For the Planetary Mill PULVERISETTE 5/2 classic line, you require at least 2 grinding bowls of your choice and the corresponding number of grinding balls. The grinding bowl material must also be harder than the material to be ground. In normal cases, grinding bowls and balls of the same material are used. To shorten the grinding time, grinding bowls and balls with a higher density and correspondingly higher impact energy can be used. Please take note of the useful capacity, this is not identical with the bowl volume!

GRINDING BOWLS

Selection aid
 
  • Material data for the grinding bowls/balls

    Material Main component of the material Density g/cm³ Abrasion resistance Used for grinding material
    Agate SiO2 2.65 good soft to medium-hard samples
    Sintered corundum Al2O3 (99.7%) 3.8 moderately good medium-hard, fibrous samples
    Silicon nitride Si3N4 3.25 extremely good abrasive samples, metal-free grinding
    Zirconium oxide ZrO2 5.7 very good fibrous, abrasive samples
    Hardened, stainless steel Fe – Cr 7.7 good hard, medium-hard, brittle samples
    Hardmetal tungsten carbide WC 14.95 very good hard, abrasive samples
  • Recommended number of grinding balls per bowl

    Grinding bowl/
    Useful capacity (grinding material)
    80 ml
    10 – 30 ml
    250 ml
    30 – 125 ml
    500 ml
    80 – 225 ml
    Balls diameter
    40 mm 4
    30 mm 6 8
    20 mm 5 15 25
    15 mm 10 45 70
    10 mm 25 50 100
    5 mm 250 1200 2000
    Grinding balls ≤ 3 mm
    Recommended ball mass per bowl in grams
    Grinding bowl/
    Useful capacity (grinding material)
    80 ml
    10 – 30 ml
    250 ml
    30 – 125 ml
    500 ml
    180 – 225 ml
    Zirconium oxide 100 g 400 g 800 g
    Hardened, stainless steel 150 g 500 g 1100 g
    Hard metal tungsten carbide 300 g 1000 g 2100 g
  • Additional Information

    Grinding balls with diameter 3 mm and smaller must be weighed out. The above table provides you with the required mass per grinding bowl.

    The specified ball filling per bowl is the minimum quantity and should possibly be increased depending on the material properties. The useful capacity depends on the type of material. In exceptional cases, the number of grinding balls can be reduced by up to 15 %. However, increased abrasion should be expected. In general, smaller grinding balls achieve finer grinding results.

    In normal cases, grinding bowls and balls of the same material are used. To shorten the grinding time, grinding bowls and balls with a higher density and correspondingly higher impact energy can be used.

Please select 2 grinding bowls, which are offered in the sizes 500 ml, 250 ml and 80 ml to perfectly match your sample volume. The useful capacity of the grinding bowls can be found in the selection aid. Grinding bowl 80 ml: One grinding bowl holder can be equipped with 2 bowls 80 ml or 1 bowl 80 ml using an adapter to mount the bowls on top of each other. 
For the best grinding results in each individual case, all grinding bowls are available in 6 different materials, thus directly preventing contamination of the samples as a result of undesired abrasion.

SELECT GRINDING BOWL VOLUME

GRINDING BOWL 500 ML VOLUME

agate - SiO2 - with steel casing
No. 50.1055.00
agate with steel casing, lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 500 ml
Useful capacity: 80 … 225 ml
Weight net: 3.900 kg
General material specification:
Material: agate - SiO2
Abrasion resistance: good
Suitable for: soft to medium-hard samples
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
MaterialAgate – SiO2
Chemical composition
ElementShare %
Silicon oxide– SiO299.9
Aluminium – Al2O3< 0.02
Iron oxide – Fe2O3< 0.02
Calcium oxide – CaO< 0.02
Magnesium – MgO< 0.02
Sodium carbonate – Na2O< 0.02
Potassium carbonate – K2O< 0.02
Manganese oxide – MnO< 0.02
Physical and mechanical properties
Density2.65 g/cm³
Hardness6.5 – 7 Mohs


Explanations on hardness data
sintered corundum - 99.7% Al2O3
No. 50.1060.00
sintered corundum with lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 500 ml
Useful capacity: 80 … 225 ml
Weight net: 2.900 kg
General material specification:
Material: sintered corundum 1 - 99.7 % Al2O3
Abrasion resistance: fairly good
Suitable for: medium-hard, fibrous samples
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
MaterialSintered corundum 1 – Al2O3
ISO/EN/DIN code
Chemical composition
ElementShare %
Aluminium oxide – Al2O399.651
Silicon oxide – SiO20.257
Calcium oxide – CaO0.081
Other0.011
Physical and mechanical properties
Density3.8 g/cm³
Hardness15.000N/mm² (Vickers)


Explanations on hardness data
silicon nitride - Si3N4 - with steel casing
No. 50.1310.00
silicon nitride with steel casing, lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 500 ml
Useful capacity: 80 … 225 ml
Weight net: 3.400 kg
General material specification:
Material: silicon nitride - Si3N4
Abrasion resistance: excellent
Suitable for: abrasive samples, metal-free grinding
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
MaterialSilicon nitride - Si3N4
ISO/EN/DIN codeSNCB5
Chemical composition
ElementShare %
Al2 O3 Y2 O39
Si3 N491
Physical and mechanical properties
Density3.25 g/cm³
Hardness91.1 HRA


Explanations on hardness data
zirconium oxide - ZrO2
No. 50.1110.00
zirconium oxide, with lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 500 ml
Useful capacity: 80 … 225 ml
Weight net: 4.000 kg
General material specification:
Material: zirconium oxide - ZrO2
Abrasion resistance: very good
Suitable for: fibrous, abrasive samples
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
MaterialZirconium oxide - ZrO2
Chemical composition
ElementShare %
Zirconium oxide – ZrO294.2 - 95.2
Hafnium oxide – HfO21 - 2
Magnesium oxide – MgO3.5
Silicon dioxide – SiO20.1
Aluminium oxide – Al2O30.1
Other0.1
Physical and mechanical properties
Density5.7 g/cm³
Hardness Vickers 1200 (HV10)


Explanations on hardness data
hardened, stainless steel - Fe - Cr
No. 50.1090.00
hardened, stainless steel, with lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 500 ml
Useful capacity: 80 … 225 ml
Weight net: 4.300 kg
General material specification:
Material: hardened, stainless steel - Fe-Cr
Abrasion resistance: good
Suitable for: hard, medium-hard, brittle samples
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data

REPLACEMENT SEAL RING PTFE FOR GRINDING BOWLS 500 ML VOLUME

replacement seal ring PTFE 121/110 mm dia. for agate grinding bowls of 500 ml volume
No. 50.2661.20
for agate grinding grinding bowls <i>classic line</i>

Replacement seal ring made of PTFE, 121/110 mm dia. for agate grinding bowls of 500 ml volume.


replacement seal ring PTFE 110/101 mm dia. for silicon nitride grinding bowls of 500 ml volume
No. 50.1010.20
for silicon nitride grinding bowls <i>classic line</i>

Replacement seal ring made of PTFE, 110/101 mm dia. for silicon nitride grinding bowls of 500 ml volume.


Element Analysis
General specifications
Material PTFE
CAS Number9002-84-0
Chemical composition
ElementFormula
PolytetrafluoroethyleneC 2F4
Melting point327° C
Max. application temp. constant260° C
Max. application temp. briefly300° C
Physical and mechanical properties
Density2.16 g /cm³
Ball pressure hardness ISO 868, ISO 2039-2, D 55 Shore
replacement seal ring PTFE 116/200 mm dia. for all other grinding bowls of 500 ml volume
No. 50.1230.20
for all grinding bowls <i>classic line</i>

Replacement seal ring PTFE, 116/100 mm dia. for all other grinding bowls 500 ml volume, except silicon nitride and agate.


Element Analysis
General specifications
Material PTFE
CAS Number9002-84-0
Chemical composition
ElementFormula
PolytetrafluoroethyleneC 2F4
Melting point327° C
Max. application temp. constant260° C
Max. application temp. briefly300° C
Physical and mechanical properties
Density2.16 g /cm³
Ball pressure hardness ISO 868, ISO 2039-2, D 55 Shore

GRINDING BOWL 250 ML VOLUME

agate - SiO2 - with steel casing
No. 50.2055.00
agate with steel casing, lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 250 ml
Useful capacity: 30 … 125 ml
Weight net: 2.500 kg
General material specification:
Material: agate - SiO2
Abrasion resistance: good
Suitable for: soft to medium-hard samples
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
MaterialAgate – SiO2
Chemical composition
ElementShare %
Silicon oxide– SiO299.9
Aluminium – Al2O3< 0.02
Iron oxide – Fe2O3< 0.02
Calcium oxide – CaO< 0.02
Magnesium – MgO< 0.02
Sodium carbonate – Na2O< 0.02
Potassium carbonate – K2O< 0.02
Manganese oxide – MnO< 0.02
Physical and mechanical properties
Density2.65 g/cm³
Hardness6.5 – 7 Mohs


Explanations on hardness data
sintered corundum - 99.7% Al2O3
No. 50.2060.00
sintered corundum with lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 250 ml
Useful capacity: 30 … 125 ml
Weight net: 2.300 kg
General material specification:
Material: sintered corundum 1 - 99.7 % Al2O3
Abrasion resistance: fairly good
Suitable for: medium-hard, fibrous samples
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
MaterialSintered corundum 1 – Al2O3
ISO/EN/DIN code
Chemical composition
ElementShare %
Aluminium oxide – Al2O399.651
Silicon oxide – SiO20.257
Calcium oxide – CaO0.081
Other0.011
Physical and mechanical properties
Density3.8 g/cm³
Hardness15.000N/mm² (Vickers)


Explanations on hardness data
silicon nitride - Si3N4 - with steel casing
No. 50.2310.00
silicon nitride with steel casing, lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 250 ml
Useful capacity: 30 … 125 ml
Weight net: 2.800 kg
General material specification:
Material: silicon nitride - Si3N4
Abrasion resistance: excellent
Suitable for: abrasive samples, metal-free grinding
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
MaterialSilicon nitride - Si3N4
ISO/EN/DIN codeSNCB5
Chemical composition
ElementShare %
Al2 O3 Y2 O39
Si3 N491
Physical and mechanical properties
Density3.25 g/cm³
Hardness91.1 HRA


Explanations on hardness data
zirconium oxide - ZrO2
No. 50.2110.00
zirconium oxide with lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 250 ml
Useful capacity: 30 … 125 ml
Weight net: 3.100 kg
General material specification:
Material: zirconium oxide - ZrO2
Abrasion resistance: very good
Suitable for: fibrous, abrasive samples
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
MaterialZirconium oxide - ZrO2
Chemical composition
ElementShare %
Zirconium oxide – ZrO294.2 - 95.2
Hafnium oxide – HfO21 - 2
Magnesium oxide – MgO3.5
Silicon dioxide – SiO20.1
Aluminium oxide – Al2O30.1
Other0.1
Physical and mechanical properties
Density5.7 g/cm³
Hardness Vickers 1200 (HV10)


Explanations on hardness data
hardened, stainless steel - Fe - Cr
No. 50.2090.00
hardened, stainless steel with lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 250 ml
Useful capacity: 30 … 125 ml
Weight net: 3.200 kg
General material specification:
Material: hardened, stainless steel - Fe-Cr
Abrasion resistance: good
Suitable for: hard, medium-hard, brittle samples
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data
hardmetal tungsten carbide - WC - with steel casing
No. 50.2080.00
hardmetal tungsten carbide with steel casing, lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 250 ml
Useful capacity: 30 … 125 ml
Weight net: 5.000 kg
General material specification:
Material: hardmetal tungsten carbide - WC
Abrasion resistance: very good
Suitable for: hard, abrasive samples
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
MaterialTungsten carbide - WC
ISO/EN/DIN code
Chemical composition
ElementShare %
Tungsten carbide – TC88
Cobalt – Co 12
Physical and mechanical properties
Density14.3 g/cm³
Hardness89.7 HRA


Explanations on hardness data

REPLACEMENT SEAL RING PTFE FOR GRINDING BOWLS 250 ML VOLUME

replacement seal ring PTFE 85/70 mm dia. for agate grinding bowls of 80 + 250 ml volume
No. 50.2011.20
for agate grinding bowls of 80 and 250 ml volume

Replacement seal ring PTFE 85/70 mm dia. for agate grinding bowls of 80 + 250 ml volume.


Element Analysis
General specifications
Material PTFE
CAS Number9002-84-0
Chemical composition
ElementFormula
PolytetrafluoroethyleneC 2F4
Melting point327° C
Max. application temp. constant260° C
Max. application temp. briefly300° C
Physical and mechanical properties
Density2.16 g /cm³
Ball pressure hardness ISO 868, ISO 2039-2, D 55 Shore
replacement seal ring PTFE for 85/76 mm dia. for silicon nitride grinding bowls of 250 ml volume
No. 50.2010.20
for silicon nitride grinding bowls <i>classic line</i>

Replacement seal ring PTFE for 85/76 mm dia. for silicon nitride grinding bowls of 250 ml volume.


Element Analysis
General specifications
Material PTFE
CAS Number9002-84-0
Chemical composition
ElementFormula
PolytetrafluoroethyleneC 2F4
Melting point327° C
Max. application temp. constant260° C
Max. application temp. briefly300° C
Physical and mechanical properties
Density2.16 g /cm³
Ball pressure hardness ISO 868, ISO 2039-2, D 55 Shore
replacement seal ring PTFE 90/75 mm dia. for all other grinding bowls of 250 ml volume
No. 50.2230.20
for all grinding bowls <i>classic line</i>

Replacement seal ring made of PTFE, 90/75 mm dia., for all other grinding bowls, 250 ml volume, except agate and silicon Nitride.


Element Analysis
General specifications
Material PTFE
CAS Number9002-84-0
Chemical composition
ElementFormula
PolytetrafluoroethyleneC 2F4
Melting point327° C
Max. application temp. constant260° C
Max. application temp. briefly300° C
Physical and mechanical properties
Density2.16 g /cm³
Ball pressure hardness ISO 868, ISO 2039-2, D 55 Shore

GRINDING BOWL 80 ML VOLUME

agate - SiO2 - with steel casing
No. 50.4055.00
agate with steel casing, lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 80 ml
Useful capacity: 10 … 30
Weight net: 1.550 kg
General material specification:
Material: agate - SiO2
Abrasion resistance: good
Suitable for: soft to medium-hard samples
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
MaterialAgate – SiO2
Chemical composition
ElementShare %
Silicon oxide– SiO299.9
Aluminium – Al2O3< 0.02
Iron oxide – Fe2O3< 0.02
Calcium oxide – CaO< 0.02
Magnesium – MgO< 0.02
Sodium carbonate – Na2O< 0.02
Potassium carbonate – K2O< 0.02
Manganese oxide – MnO< 0.02
Physical and mechanical properties
Density2.65 g/cm³
Hardness6.5 – 7 Mohs


Explanations on hardness data
sintered corundum - 99.7% Al2O3
No. 50.4060.00
sintered corundum with lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 80 ml
Useful capacity: 10 … 30 ml
Weight net: 1.000 kg
General material specification:
Material: sintered corundum 1 - 99.7 % Al2O3
Abrasion resistance: fairly good
Suitable for: medium-hard, fibrous samples
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
MaterialSintered corundum 1 – Al2O3
ISO/EN/DIN code
Chemical composition
ElementShare %
Aluminium oxide – Al2O399.651
Silicon oxide – SiO20.257
Calcium oxide – CaO0.081
Other0.011
Physical and mechanical properties
Density3.8 g/cm³
Hardness15.000N/mm² (Vickers)


Explanations on hardness data
silicon nitride - Si3N4
No. 50.4310.00
silicon nitride with lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 80 ml
Useful capacity: 10 … 30 ml
Weight net: 0.800 kg
General material specification:
Material: silicon nitride - Si3N4
Abrasion resistance: excellent
Suitable for: abrasive samples, metal-free grinding
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
MaterialSilicon nitride - Si3N4
ISO/EN/DIN codeSNCB5
Chemical composition
ElementShare %
Al2 O3 Y2 O39
Si3 N491
Physical and mechanical properties
Density3.25 g/cm³
Hardness91.1 HRA


Explanations on hardness data
zirconium oxide - ZrO2
No. 50.4110.00
zirconium oxide with lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 80 ml
Useful capacity: 10 … 30 ml
Weight net: 1.400 kg
General material specification:
Material: zirconium oxide - ZrO2
Abrasion resistance: very good
Suitable for: fibrous, abrasive samples
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
MaterialZirconium oxide - ZrO2
Chemical composition
ElementShare %
Zirconium oxide – ZrO294.2 - 95.2
Hafnium oxide – HfO21 - 2
Magnesium oxide – MgO3.5
Silicon dioxide – SiO20.1
Aluminium oxide – Al2O30.1
Other0.1
Physical and mechanical properties
Density5.7 g/cm³
Hardness Vickers 1200 (HV10)


Explanations on hardness data
hardened, stainless steel - Fe - Cr
No. 50.4090.00
hardened, stainless steel with lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 80 ml
Useful capacity: 10 … 30 ml
Weight net: 1.900 kg
General material specification:
Material: hardened, stainless steel - Fe-Cr
Abrasion resistance: good
Suitable for: hard, medium-hard, brittle samples
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data
hardmetal tungsten carbide - WC - with steel casing
No. 50.4080.00
hardmetal tungsten carbide with steel casing, lid and seal ring <i>classic line</i>

Grinding bowl with lid and seal ring
Grinding bowl volume: 80 ml
Useful capacity: 10 … 30 ml
Weight net: 2.400 kg
General material specification:
Material: hardmetal tungsten carbide - WC
Abrasion resistance: very good
Suitable for: hard, abrasive samples
Detailed information about the material you will find in the element analysis.


Element Analysis
General specifications
MaterialTungsten carbide - WC
ISO/EN/DIN code
Chemical composition
ElementShare %
Tungsten carbide – TC88
Cobalt – Co 12
Physical and mechanical properties
Density14.3 g/cm³
Hardness89.7 HRA


Explanations on hardness data

REPLACEMENT SEAL RING PTFE FOR GRINDING BOWLS 80 ML VOLUME AND ADAPTER

replacement seal ring PTFE 85/70 mm dia. for agate grinding bowls of 80 + 250 ml volume
No. 50.2011.20
for agate grinding bowls of 80 and 250 ml volume

Replacement seal ring PTFE 85/70 mm dia. for agate grinding bowls of 80 + 250 ml volume.


Element Analysis
General specifications
Material PTFE
CAS Number9002-84-0
Chemical composition
ElementFormula
PolytetrafluoroethyleneC 2F4
Melting point327° C
Max. application temp. constant260° C
Max. application temp. briefly300° C
Physical and mechanical properties
Density2.16 g /cm³
Ball pressure hardness ISO 868, ISO 2039-2, D 55 Shore
replacement seal ring PTFE 80/65 mm dia. for all other bowls of 80 ml volume
No. 50.4230.20
replacement seal ring for all other grinding bowls 80 ml volume <i>classic line</i>

Replacement seal ring made of PTFE, 80/65 mm dia. for all other grinding bowls 80 ml volume.


Element Analysis
General specifications
Material PTFE
CAS Number9002-84-0
Chemical composition
ElementFormula
PolytetrafluoroethyleneC 2F4
Melting point327° C
Max. application temp. constant260° C
Max. application temp. briefly300° C
Physical and mechanical properties
Density2.16 g /cm³
Ball pressure hardness ISO 868, ISO 2039-2, D 55 Shore
adapter for grinding bowls 80 ml volume
No. 90.1120.09
adapter for grinding bowl 80 ml volume <i>classic line</i>

If only one grinding bowl of 12, 25, 45 or 80 ml volume per grinding bowl holder is inserted in the PULVERISETTE 4, PULVERISETTE 5 or PULVERISETTE 6 classic line, this adapter is essential as adjustment.


GRINDING BALLS

Selection aid
 
  • Material data for the grinding bowls/balls

    Material Main component of the material Density g/cm³ Abrasion resistance Used for grinding material
    Agate SiO2 2.65 good soft to medium-hard samples
    Sintered corundum Al2O3 (99.7%) 3.8 moderately good medium-hard, fibrous samples
    Silicon nitride Si3N4 3.25 extremely good abrasive samples, metal-free grinding
    Zirconium oxide ZrO2 5.7 very good fibrous, abrasive sampless
    Hardened, stainless steel Fe – Cr 7.7 good hard, medium-hard, brittle samples
    Hardmetal tungsten carbide WC 14.95 very good hard, abrasive samples
  • Size of the grinding balls

    Type ofsample material Suitable ball diameter
    Hard samples with a maximum feed size of 10 mm 30 mm or 40 mm
    Average feed size of ≤ 5 mm 20 mm, 15 mm or 10 mm
    Fine material < 0.5 mm 10 mm or smaller
    Homogenisation of dry or liquid samples 20 mm or smaller
    Homogenisation of viscous samples 20 mm
  • Recommended number of grinding balls per bowl

    Grinding balls ≥ 5 mm
    Recommended number of balls per bowl
    Grinding bowl/
    Useful capacity (grinding material)
    80 ml
    10 – 30 ml
    250 ml
    30 – 125 ml
    500 ml
    80 – 225 ml
    Balls diameter
    40 mm 4
    30 mm 6 8
    20 mm 5 15 25
    15 mm 10 45 70
    10 mm 25 50 100
    5 mm 250 1200 2000
    Grinding balls ≤ 3 mm
    Recommended ball mass per bowl in grams
    Grinding bowl/
    Useful capacity (grinding material)
    80 ml
    10 – 30 ml
    250 ml
    30 – 125 ml
    500 ml
    180 – 225 ml
    Zirconium oxide 100 g 400 g 800 g
    Hardened, stainless steel 150 g 500 g 1100 g
    Hard metal tungsten carbide 300 g 1000 g 2100 g
  • Additional Information

    Grinding balls with diameter 3 mm and smaller must be weighed out. The above table provides you with the required mass per grinding bowl.

    The specified ball filling per bowl is the minimum quantity and should possibly be increased depending on the material properties. The useful capacity depends on the type of material. In exceptional cases, the number of grinding balls can be reduced by up to 15 %. However, increased abrasion should be expected. In general, smaller grinding balls achieve finer grinding results.

    In normal cases, grinding bowls and balls of the same material are used. To shorten the grinding time, grinding bowls and balls with a higher density and correspondingly higher impact energy can be used.

For achieving best grinding results grinding balls are available in 0.1 - 40 mm diameters and in 6 different materials, thus directly preventing contamination of the samples as a result of undesired abrasion. The recommended number of balls per grinding bowl can be found in the selection aid.

SELECT THE GRINDING BALL DIAMETER

GRINDING BALLS 40 MM DIAMETER FOR GRINDING BOWL 500 ML

sintered corundum - 99.7% Al2O3
No. 55.0400.06
sintered corundum, 40 mm dia.

General material specification:
Material: sintered corundum 1 - 99.7 % Al2O3
Abrasion resistance: fairly good
Suitable for: medium-hard, fibrous samples


Element Analysis
General specifications
MaterialSintered corundum 1 – Al2O3
ISO/EN/DIN code
Chemical composition
ElementShare %
Aluminium oxide – Al2O399.651
Silicon oxide – SiO20.257
Calcium oxide – CaO0.081
Other0.011
Physical and mechanical properties
Density3.8 g/cm³
Hardness15.000N/mm² (Vickers)


Explanations on hardness data
silicon nitride - Si3N4
No. 55.0400.31
Silicon nitride, 40 mm dia.

General material specification:
Material: silicon nitride - Si3N4
Abrasion resistance: excellent
Suitable for: abrasive samples, metal-free grinding


Element Analysis
General specifications
MaterialSilicon nitride - Si3N4
ISO/EN/DIN codeSNCB5
Chemical composition
ElementShare %
Al2 O3 Y2 O312.5
Si3 N486.5
Other1.00
Physical and mechanical properties
Density3.25 g/cm³
Hardness91.1 HRA


Explanations on hardness data
zirconium oxide - ZrO2
No. 55.0400.27
Grinding ball zirconium oxide, 40 mm dia.

General material specification:
Material: zirconium oxide - ZrO2
Abrasion resistance: very good
Suitable for: fibrous, abrasive samples


Element Analysis
General specifications
MaterialZirconium oxide - ZrO2
Chemical composition
ElementShare %
Zirconium oxide – ZrO294.2 - 95.2
Hafnium oxide – HfO21 - 2
Magnesium oxide – MgO3.5
Silicon dioxide – SiO20.1
Aluminium oxide – Al2O30.1
Other0.1
Physical and mechanical properties
Density5.7 g/cm³
Hardness Vickers 1200 (HV10)


Explanations on hardness data
hardened, stainless steel - Fe - Cr
No. 55.0400.09
Grinding ball hardened, stainless steel, 40 mm dia.

General material specification:
Material: hardened, stainless steel - Fe-Cr
Abrasion resistance: good
Suitable for: hard, medium-hard, brittle samples


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data
hardmetal tungsten carbide - WC
No. 55.0400.08
Grinding ball hardmetal tungsten carbide, 40 mm dia.

General material specification:
Material: hardmetal tungsten carbide - WC
Abrasion resistance: very good
Suitable for: hard, abrasive samples


Element Analysis
General specifications
MaterialTungsten carbide - WC
ISO/EN/DIN code
Chemical composition
ElementShare %
Tungsten carbide – TC88
Cobalt – Co 12
Physical and mechanical properties
Density14.3 g/cm³
Hardness89.7 HRA


Explanations on hardness data

GRINDING BALLS 30 MM DIAMETER FOR GRINDING BOWL 500 ML, 250 ML

agate - SiO2 - polished
No. 55.0300.05
Grinding ball agate 30 mm dia., polished

General material specification:
Material: agate - SiO2
Abrasion resistance: good
Suitable for: soft to medium-hard sample


Element Analysis
General specifications
MaterialAgate – SiO2
Chemical composition
ElementShare %
Silicon oxide– SiO299.9
Aluminium – Al2O3< 0.02
Iron oxide – Fe2O3< 0.02
Calcium oxide – CaO< 0.02
Magnesium – MgO< 0.02
Sodium carbonate – Na2O< 0.02
Potassium carbonate – K2O< 0.02
Manganese oxide – MnO< 0.02
Physical and mechanical properties
Density2.65 g/cm³
Hardness6.5 – 7 Mohs


Explanations on hardness data
sintered corundum - 99.7% Al2O3
No. 55.0300.06
Grinding ball sintered corundum, 30 mm dia.

General material specification:
Material: sintered corundum 1 - 99.7 % Al2O3
Abrasion resistance: fairly good
Suitable for: medium-hard, fibrous samples


Element Analysis
General specifications
MaterialSintered corundum 1 – Al2O3
ISO/EN/DIN code
Chemical composition
ElementShare %
Aluminium oxide – Al2O399.651
Silicon oxide – SiO20.257
Calcium oxide – CaO0.081
Other0.011
Physical and mechanical properties
Density3.8 g/cm³
Hardness15.000N/mm² (Vickers)


Explanations on hardness data
silicon nitride - Si3N4
No. 55.0300.31
Grinding ball silicon nitride, 30 mm dia.

General material specification:
Material: silicon nitride - Si3N4
Abrasion resistance: excellent
Suitable for: abrasive samples, metal-free grinding


Element Analysis
General specifications
MaterialSilicon nitride - Si3N4
ISO/EN/DIN codeSNCB5
Chemical composition
ElementShare %
Al2 O3 Y2 O312.5
Si3 N486.5
Other1.00
Physical and mechanical properties
Density3.25 g/cm³
Hardness91.1 HRA


Explanations on hardness data
zirconium oxide - ZrO2
No. 55.0300.27
Grinding ball zirconium oxide, 30 mm dia.

General material specification:
Material: zirconium oxide - ZrO2
Abrasion resistance: very good
Suitable for: fibrous, abrasive samples


Element Analysis
General specifications
MaterialZirconium oxide - ZrO2
Chemical composition
ElementShare %
Zirconium oxide – ZrO294.2 - 95.2
Hafnium oxide – HfO21 - 2
Magnesium oxide – MgO3.5
Silicon dioxide – SiO20.1
Aluminium oxide – Al2O30.1
Other0.1
Physical and mechanical properties
Density5.7 g/cm³
Hardness Vickers 1200 (HV10)


Explanations on hardness data
hardened, stainless steel - Fe - Cr
No. 55.0300.09
Grinding ball hardened, stainless steel, 30 mm dia.

General material specification:
Material: hardened, stainless steel - Fe-Cr
Abrasion resistance: good
Suitable for: hard, medium-hard, brittle samples


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data
hardmetal tungsten carbide - WC
No. 55.0300.08
Grinding ball hardmetal tungsten carbide, 30 mm dia.

General material specification:
Material: hardmetal tungsten carbide - WC
Abrasion resistance: very good
Suitable for: hard, abrasive samples


Element Analysis
General specifications
MaterialTungsten carbide - WC
ISO/EN/DIN code
Chemical composition
ElementShare %
Tungsten carbide – TC88
Cobalt – Co 12
Physical and mechanical properties
Density14.3 g/cm³
Hardness89.7 HRA


Explanations on hardness data

GRINDING BALLS 20 MM DIAMETER FOR GRINDING BOWL 500 ML, 250 ML, 80 ML

agate - SiO2 - polished
No. 55.0200.05
Grinding ball agate 20 mm dia., polished

General material specification:
Material: agate - SiO2
Abrasion resistance: good
Suitable for: soft to medium-hard sample


Element Analysis
General specifications
MaterialAgate – SiO2
Chemical composition
ElementShare %
Silicon oxide– SiO299.9
Aluminium – Al2O3< 0.02
Iron oxide – Fe2O3< 0.02
Calcium oxide – CaO< 0.02
Magnesium – MgO< 0.02
Sodium carbonate – Na2O< 0.02
Potassium carbonate – K2O< 0.02
Manganese oxide – MnO< 0.02
Physical and mechanical properties
Density2.65 g/cm³
Hardness6.5 – 7 Mohs


Explanations on hardness data
sintered corundum - 99.7% Al2O3
No. 55.0200.06
Grinding ball sintered corundum, 20 mm dia.

General material specification:
Material: sintered corundum 1 - 99.7 % Al2O3
Abrasion resistance: fairly good
Suitable for: medium-hard, fibrous samples


Element Analysis
General specifications
MaterialSintered corundum 1 – Al2O3
ISO/EN/DIN code
Chemical composition
ElementShare %
Aluminium oxide – Al2O399.651
Silicon oxide – SiO20.257
Calcium oxide – CaO0.081
Other0.011
Physical and mechanical properties
Density3.8 g/cm³
Hardness15.000N/mm² (Vickers)


Explanations on hardness data
silicon nitride - Si3N4
No. 55.0200.31
Grinding ball silicon nitride, 20 mm dia.

General material specification:
Material: silicon nitride - Si3N4
Abrasion resistance: excellent
Suitable for: abrasive samples, metal-free grinding


Element Analysis
General specifications
MaterialSilicon nitride - Si3N4
ISO/EN/DIN codeSNCB5
Chemical composition
ElementShare %
Al2 O3 Y2 O312.5
Si3 N486.5
Other1.00
Physical and mechanical properties
Density3.25 g/cm³
Hardness91.1 HRA


Explanations on hardness data
zirconium oxide - ZrO2
No. 55.0200.27
Grinding ball zirconium oxide, 20 mm dia.

General material specification:
Material: zirconium oxide - ZrO2
Abrasion resistance: very good
Suitable for: fibrous, abrasive samples


Element Analysis
General specifications
MaterialZirconium oxide - ZrO2
Chemical composition
ElementShare %
Zirconium oxide – ZrO294.2 - 95.2
Hafnium oxide – HfO21 - 2
Magnesium oxide – MgO3.5
Silicon dioxide – SiO20.1
Aluminium oxide – Al2O30.1
Other0.1
Physical and mechanical properties
Density5.7 g/cm³
Hardness Vickers 1200 (HV10)


Explanations on hardness data
hardened, stainless steel - Fe - Cr
No. 55.0200.09
Grinding ball hardened, stainless steel, 20 mm dia.

General material specification:
Material: hardened, stainless steel - Fe-Cr
Abrasion resistance: good
Suitable for: hard, medium-hard, brittle samples


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data
hardmetal tungsten carbide - WC
No. 55.0200.08
Grinding ball hardmetal tungsten carbide, 20 mm dia.

General material specification:
Material: hardmetal tungsten carbide - WC
Abrasion resistance: very good
Suitable for: hard, abrasive samples


Element Analysis
General specifications
MaterialTungsten carbide - WC
ISO/EN/DIN code
Chemical composition
ElementShare %
Tungsten carbide – TC88
Cobalt – Co 12
Physical and mechanical properties
Density14.3 g/cm³
Hardness89.7 HRA


Explanations on hardness data

GRINDING BALLS 15 MM DIAMETER FOR GRINDING BOWL 500 ML, 250 ML, 80 ML

agate - SiO2 - polished
No. 55.0150.05
Grinding ball agate 15 mm dia., polished

General material specification:
Material: agate - SiO2
Abrasion resistance: good
Suitable for: soft to medium-hard sample


Element Analysis
General specifications
MaterialAgate – SiO2
Chemical composition
ElementShare %
Silicon oxide– SiO299.9
Aluminium – Al2O3< 0.02
Iron oxide – Fe2O3< 0.02
Calcium oxide – CaO< 0.02
Magnesium – MgO< 0.02
Sodium carbonate – Na2O< 0.02
Potassium carbonate – K2O< 0.02
Manganese oxide – MnO< 0.02
Physical and mechanical properties
Density2.65 g/cm³
Hardness6.5 – 7 Mohs


Explanations on hardness data
sintered corundum - 99.7% Al2O3
No. 55.0150.06
Grinding ball sintered corundum, 15 mm dia.

General material specification:
Material: sintered corundum 1 - 99.7 % Al2O3
Abrasion resistance: fairly good
Suitable for: medium-hard, fibrous samples


Element Analysis
General specifications
MaterialSintered corundum 1 – Al2O3
ISO/EN/DIN code
Chemical composition
ElementShare %
Aluminium oxide – Al2O399.651
Silicon oxide – SiO20.257
Calcium oxide – CaO0.081
Other0.011
Physical and mechanical properties
Density3.8 g/cm³
Hardness15.000N/mm² (Vickers)


Explanations on hardness data
silicon nitride - Si3N4
No. 55.0150.31
Grinding ball silicon nitride, 15 mm dia.

General material specification:
Material: silicon nitride - Si3N4
Abrasion resistance: excellent
Suitable for: abrasive samples, metal-free grinding


Element Analysis
General specifications
MaterialSilicon nitride - Si3N4
ISO/EN/DIN codeSNCB5
Chemical composition
ElementShare %
Al2 O3 Y2 O312.5
Si3 N486.5
Other1.00
Physical and mechanical properties
Density3.25 g/cm³
Hardness91.1 HRA


Explanations on hardness data
zirconium oxide - ZrO2
No. 55.0150.27
Grinding ball zirconium oxide, 15 mm dia.

General material specification:
Material: zirconium oxide - ZrO2
Abrasion resistance: very good
Suitable for: fibrous, abrasive samples


Element Analysis
General specifications
MaterialZirconium oxide - ZrO2
Chemical composition
ElementShare %
Zirconium oxide – ZrO294.2 - 95.2
Hafnium oxide – HfO21 - 2
Magnesium oxide – MgO3.5
Silicon dioxide – SiO20.1
Aluminium oxide – Al2O30.1
Other0.1
Physical and mechanical properties
Density5.7 g/cm³
Hardness Vickers 1200 (HV10)


Explanations on hardness data
hardened, stainless steel - Fe - Cr
No. 55.0150.09
Grinding ball hardened, stainless steel, 15 mm dia.

General material specification:
Material: hardened, stainless steel - Fe-Cr
Abrasion resistance: good
Suitable for: medium-hard, brittle samples


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data
hardmetal tungsten carbide - WC
No. 55.0150.08
Grinding ball hardmetal tungsten carbide, 15 mm dia.

General material specification:
Material: hardmetal tungsten carbide - WC
Abrasion resistance: very good
Suitable for: hard, abrasive samples


Element Analysis
General specifications
MaterialTungsten carbide - WC
ISO/EN/DIN code
Chemical composition
ElementShare %
Tungsten carbide – TC88
Cobalt – Co 12
Physical and mechanical properties
Density14.3 g/cm³
Hardness89.7 HRA


Explanations on hardness data

GRINDING BALLS 10 MM DIAMETER FOR GRINDING BOWL 500 ML, 250 ML, 80 ML

agate - SiO2 - polished
No. 55.0100.05
Grinding ball agate 10 mm dia., polished

General material specification:
Material: agate - SiO2
Abrasion resistance: good
Suitable for: soft to medium-hard sample
Grinding balls made of agate with 10 mm dia. are also recommended as sieving aid for dry sieving of material with a high proportion of fine particles.
Recommended number per sieve: 10 pieces.


Element Analysis
General specifications
MaterialAgate – SiO2
Chemical composition
ElementShare %
Silicon oxide– SiO299.9
Aluminium – Al2O3< 0.02
Iron oxide – Fe2O3< 0.02
Calcium oxide – CaO< 0.02
Magnesium – MgO< 0.02
Sodium carbonate – Na2O< 0.02
Potassium carbonate – K2O< 0.02
Manganese oxide – MnO< 0.02
Physical and mechanical properties
Density2.65 g/cm³
Hardness6.5 – 7 Mohs


Explanations on hardness data
sintered corundum - 99.7% Al2O3
No. 55.0100.06
Grinding ball sintered corundum, 10 mm dia.

General material specification:
Material: sintered corundum 1 - 99.7 % Al2O3
Abrasion resistance: fairly good
Suitable for: medium-hard, fibrous samples


Element Analysis
General specifications
MaterialSintered corundum 1 – Al2O3
ISO/EN/DIN code
Chemical composition
ElementShare %
Aluminium oxide – Al2O399.651
Silicon oxide – SiO20.257
Calcium oxide – CaO0.081
Other0.011
Physical and mechanical properties
Density3.8 g/cm³
Hardness15.000N/mm² (Vickers)


Explanations on hardness data
silicon nitride - Si3N4
No. 55.0100.31
Grinding ball silicon nitride, 10 mm dia.

General material specification:
Material: silicon nitride - Si3N4
Abrasion resistance: excellent
Suitable for: abrasive samples, metal-free grinding


Element Analysis
General specifications
MaterialSilicon nitride - Si3N4
ISO/EN/DIN codeSNCB5
Chemical composition
ElementShare %
Al2 O3 Y2 O312.5
Si3 N486.5
Other1.00
Physical and mechanical properties
Density3.25 g/cm³
Hardness91.1 HRA


Explanations on hardness data
zirconium oxide - ZrO2
No. 55.0100.27
Grinding ball zirconium oxide, 10 mm dia.

General material specification:
Material: zirconium oxide - ZrO2
Abrasion resistance: very good
Suitable for: fibrous, abrasive samples


Element Analysis
General specifications
MaterialZirconium oxide - ZrO2
Chemical composition
ElementShare %
Zirconium oxide – ZrO294.2 - 95.2
Hafnium oxide – HfO21 - 2
Magnesium oxide – MgO3.5
Silicon dioxide – SiO20.1
Aluminium oxide – Al2O30.1
Other0.1
Physical and mechanical properties
Density5.7 g/cm³
Hardness Vickers 1200 (HV10)


Explanations on hardness data
hardened, stainless steel - Fe - Cr
No. 55.0100.09
Grinding ball hardened, stainless steel, 10 mm dia.

General material specification:
Material: hardened, stainless steel - Fe-Cr
Abrasion resistance: good
Suitable for: hard, medium-hard, brittle samples


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data
hardmetal tungsten carbide - WC
No. 55.0100.08
Grinding ball hardmetal tungsten carbide, 10 mm dia.

General material specification:
Material: hardmetal tungsten carbide - WC
Abrasion resistance: very good
Suitable for: hard, abrasive samples


Element Analysis
General specifications
MaterialTungsten carbide - WC
ISO/EN/DIN code
Chemical composition
ElementShare %
Tungsten carbide – TC88
Cobalt – Co 12
Physical and mechanical properties
Density14.3 g/cm³
Hardness89.7 HRA


Explanations on hardness data

GRINDING BALLS 5 MM DIAMETER FOR GRINDING BOWL 500 ML, 250 ML, 80 ML

agate - SiO2 - polished
No. 55.0050.05
Grinding ball agate, 5 mm dia., polished

General material specification:
Material: agate - SiO2
Abrasion resistance: good
Suitable for: soft to medium-hard sample
100 grinding balls made of agate with 5 mm dia. weigh approx. 17 g. With the weight information, the high number of balls per grinding bowl can be determined by weighing.
Grinding balls made of agate with 5 mm dia. are also recommended as sieving aid for dry sieving of material with a high proportion of fine particles.
Recommended number per sieve: 15 pieces.


Element Analysis
General specifications
MaterialAgate – SiO2
Chemical composition
ElementShare %
Silicon oxide– SiO299.9
Aluminium – Al2O3< 0.02
Iron oxide – Fe2O3< 0.02
Calcium oxide – CaO< 0.02
Magnesium – MgO< 0.02
Sodium carbonate – Na2O< 0.02
Potassium carbonate – K2O< 0.02
Manganese oxide – MnO< 0.02
Physical and mechanical properties
Density2.65 g/cm³
Hardness6.5 – 7 Mohs


Explanations on hardness data
zirconium oxide - ZrO2
No. 55.0050.27
Grinding ball zirconium oxide, 5 mm dia.

General material specification:
Material: zirconium oxide - ZrO2
Abrasion resistance: very good
Suitable for: fibrous, abrasive samples
100 grinding balls made of zirconium oxide with 5 mm dia. weigh approx. 38 g.
With the weight information, the high number of balls per grinding bowl can be determined by weighing.


Element Analysis
General specifications
MaterialZirconium oxide ZrO2
ISO/EN/DIN code
Chemical composition
ElementShare %
Zirconium oxide - ZrO295%
Yttrium oxide -Y2O35%
Physical and mechanical properties
Density6.0 g/cm³
Hardness Vickers1300 (HV10)


Explanations on hardness data
hardened, stainless steel - Fe - Cr
No. 55.0050.09
Grinding ball hardened, stainless steel, 5 mm dia.

General material specification:
Material: hardened, stainless steel - Fe-Cr
Abrasion resistance: good
Suitable for: hard, medium-hard, brittle samples
100 grinding balls made of hardened, stainless steel with 5 mm dia. weigh approx. 52 g.
With the weight information, the high number of balls per grinding bowl can be determined by weighing.


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data
hardmetal tungsten carbide - WC
No. 55.0050.08
Grinding ball hardmetal tungsten carbide, 5 mm dia.

General material specification:
Material: hardmetal tungsten carbide - WC
Abrasion resistance: very good
Suitable for: hard, abrasive samples
100 grinding balls made of hardmetal tungsten carbide with 5 mm dia. weigh approx. 97 g. With the weight information, the high number of balls per grinding bowl can be determined by weighing.


Element Analysis
General specifications
MaterialTungsten carbide - WC
ISO/EN/DIN code
Chemical composition
ElementShare %
Tungsten carbide – TC88
Cobalt – Co 12
Physical and mechanical properties
Density14.3 g/cm³
Hardness89.7 HRA


Explanations on hardness data

GRINDING BALLS ≤ 3 MM DIAMETER FOR GRINDING BOWL 500 ML, 250 ML, 80 ML (100 G PACKAGE)

3 mm dia. zirconium oxide ZrO2
No. 55.0030.27
Grinding balls zirconium oxide 3 mm dia. (100 g pack)

General material specification:
Material: zirconium oxide - ZrO2
Abrasion resistance: very good
Suitable for: fibrous, abrasive samples
Grinding balls made of zirconium oxide with 3 mm dia. are packed in 100 g units and must be weight out.
In the selection aid you can find the required mass per grinding bowl.


Element Analysis
General specifications
MaterialZirconium oxide ZrO2
ISO/EN/DIN code
Chemical composition
ElementShare %
Zirconium oxide - ZrO295%
Yttrium oxide -Y2O35%
Physical and mechanical properties
Density6.0 g/cm³
Hardness Vickers1300 (HV10)


Explanations on hardness data
2 mm dia. zirconium oxide ZrO2
No. 55.0020.27
Grinding balls zirconium oxide 2 mm dia. (100 g pack)

General material specification:
Material: zirconium oxide - ZrO2
Abrasion resistance: very good
Suitable for: fibrous, abrasive samples
Grinding balls made of zirconium oxide with 2 mm dia. are packed in 100 g units and must be weight out. In the selection aid you can find the required mass per grinding bowl.


Element Analysis
General specifications
MaterialZirconium oxide ZrO2
ISO/EN/DIN code
Chemical composition
ElementShare %
Zirconium oxide - ZrO295%
Yttrium oxide -Y2O35%
Physical and mechanical properties
Density6.0 g/cm³
Hardness Vickers1300 (HV10)


Explanations on hardness data
1.5 mm dia. zirconium oxide ZrO2
No. 55.0015.27
Grinding balls zirconium oxide 1.5 mm dia. (100 g pack)

General material specification:
Material: zirconium oxide - ZrO2
Abrasion resistance: very good
Suitable for: fibrous, abrasive samples
Grinding balls made of zirconium oxide with 1.5 mm dia. are packed in 100 g units and must be weight out.
In the selection aid you can find the required mass per grinding bowl.


Element Analysis
General specifications
MaterialZirconium oxide ZrO2
ISO/EN/DIN code
Chemical composition
ElementShare %
Zirconium oxide - ZrO295%
Yttrium oxide -Y2O35%
Physical and mechanical properties
Density6.0 g/cm³
Hardness Vickers1300 (HV10)


Explanations on hardness data
1 mm dia. zirconium oxide ZrO2
No. 55.0010.27
Grinding balls zirconium oxide 1 mm dia. (100 g pack)

General material specification:
Material: zirconium oxide - ZrO2
Abrasion resistance: very good
Suitable for: fibrous, abrasive samples
Grinding balls made of zirconium oxide with 1 mm dia. are packed in 100 g units and must be weight out. In the selection aid you can find the required mass per grinding bowl.


Element Analysis
General specifications
MaterialZirconium oxide ZrO2
ISO/EN/DIN code
Chemical composition
ElementShare %
Zirconium oxide - ZrO295%
Yttrium oxide -Y2O35%
Physical and mechanical properties
Density6.0 g/cm³
Hardness Vickers1300 (HV10)


Explanations on hardness data
0.5 mm dia. zirconium oxide ZrO2
No. 55.0005.27
Grinding balls zirconium oxide 0.5 mm dia. (100 g pack)

General material specification:
Material: zirconium oxide - ZrO2
Abrasion resistance: very good
Suitable for: fibrous, abrasive samples
Grinding balls made of zirconium oxide with 0.5 mm dia. are packed in 100 g units and must be weight out.
In the selection aid you can find the required mass per grinding bowl.


Element Analysis
General specifications
MaterialZirconium oxide ZrO2
ISO/EN/DIN code
Chemical composition
ElementShare %
Zirconium oxide - ZrO295%
Yttrium oxide -Y2O35%
Physical and mechanical properties
Density6.0 g/cm³
Hardness Vickers1300 (HV10)


Explanations on hardness data
0.1 mm dia. zirconium oxide ZrO2
No. 55.0001.27
Grinding balls zirconium oxide 0.1 mm dia. (100 g pack)

General material specification:
Material: zirconium oxide - ZrO2
Abrasion resistance: very good
Suitable for: fibrous, abrasive samples
Grinding balls made of zirconium oxide with 0.1 mm dia. are packed in 100 g units and must be weight out.
In the selection aid you can find the required mass per grinding bowl.


Element Analysis
General specifications
MaterialZirconium oxide ZrO2
ISO/EN/DIN code
Chemical composition
ElementShare %
Zirconium oxide - ZrO295%
Yttrium oxide -Y2O35%
Physical and mechanical properties
Density6.0 g/cm³
Hardness Vickers1300 (HV10)


Explanations on hardness data
3 mm dia. hardened, stainless steel - Fe - Cr
No. 55.0030.09
Grinding balls hardened, stainless steel 3 mm dia. (100 g pack)

General material specification:
Material: hardened, stainless steel - Fe-Cr
Abrasion resistance: good
Suitable for: hard, medium-hard, brittle samples
Grinding balls made of hardened, stainless steel with 3 mm dia. are packed in 100 g units and must be weight out.
In the selection aid you can find the required mass per grinding bowl.


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data
1 mm dia. hardened, stainless steel - Fe - Cr
No. 55.0010.09
Grinding balls hardened, stainless steel 1 mm dia. (100 g pack)

General material specification:
Material: hardened, stainless steel - Fe-Cr
Abrasion resistance: good
Suitable for: hard, medium-hard, brittle samples
Grinding balls made of hardened, stainless steel with 1 mm dia. are packed in 100 g units and must be weight out.
In the selection aid you can find the required mass per grinding bowl.


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data
3 mm dia. hardmetal tungsten carbide - WC
No. 55.0030.08
Grinding balls hardmetal tungsten carbide 3 mm dia. (100 g pack)

General material specification:
Material: hardmetal tungsten carbide - WC
Abrasion resistance: very good
Suitable for: hard, abrasive samples
Grinding balls made of hardmetal tungsten carbide with 3 mm dia. are packed in 100 g units and must be weight out.
In the selection aid you can find the required mass per grinding bowl.


Element Analysis
General specifications
MaterialTungsten carbide - WC
ISO/EN/DIN code
Chemical composition
ElementShare %
Tungsten carbide – TC88
Cobalt – Co 12
Physical and mechanical properties
Density14.3 g/cm³
Hardness89.7 HRA


Explanations on hardness data
1.6 mm dia. hardmetal tungsten carbide - WC
No. 55.0016.08
Grinding balls hardmetal tungsten carbide 1.6 mm dia. (100 g pack)

General material specification:
Material: hardmetal tungsten carbide - WC
Abrasion resistance: very good
Suitable for: hard, abrasive samples
Grinding balls made of hardmetal tungsten carbide with 1.6 mm dia. are packed in 100 g units and must be weight out.
In the selection aid you can find the required mass per grinding bowl.


Element Analysis
General specifications
MaterialTungsten carbide - WC
ISO/EN/DIN code
Chemical composition
ElementShare %
Tungsten carbide – TC88
Cobalt – Co 12
Physical and mechanical properties
Density14.3 g/cm³
Hardness89.7 HRA


Explanations on hardness data
0.6 mm dia. hardmetal tungsten carbide - WC
No. 55.0006.08
Grinding balls hardmetal tungsten carbide 0.6 mm dia. (100 g pack)

General material specification:
Material: hardmetal tungsten carbide - WC
Abrasion resistance: very good
Suitable for: hard, abrasive samples
Grinding balls made of hardmetal tungsten carbide with 0.6 mm dia. are packed in 100 g units and must be weight out.
In the selection aid you can find the required mass per grinding bowl.


Element Analysis
General specifications
MaterialTungsten carbide - WC
ISO/EN/DIN code
Chemical composition
ElementShare %
Tungsten carbide – TC92.94
Cobalt – Co7.00
Other0.06
Physical and mechanical properties
Density14.9 g/cm³
Hardness91.5


Explanations on hardness data

SPECIAL ACCESSORIES

The Gas Pressure and Temperature Measuring System - GTM for continuous measurement of gas pressure and temperature directly in the grinding bowl turns the Planetary Mills PULVERISETTE 4, PULVERISETTE 5, PULVERISETTE 6 of the FRITSCH classic line into an analytical measuring system.
For quickly and safely grinding in inert gas and for mechanical alloying classic line gassing lids are recommended.
Certificate for IQ/OQ documentation is also available.

SELECT SPECIAL ACCESSORIES

GTM - GAS PRESSURE AND TEMPERATURE MEASURING SYSTEM

gas pressure and temperature measuring system (GTM) incl. 250 ml grinding bowl
No. 50.2510.00
gas pressure and temperature measuring system (GTM) incl. 250 ml grinding bowl

This Gas Pressure and Temperature Measuring System developed in cooperation with the Fraunhofer Institute for Applied Material Research (IFAM) in Dresden, is for use with the Planetary Mills PULVERISETTE 4, PULVERISETTE 5, PULVERISETTE 6 of the FRITSCH classic line transform them into analytical measurement systems.
Through the continuous direct measurement of gas pressure and temperature, it is possible to monitor thermal effects as well as physical and chemical reactions or pressure variations within the grinding bowl. To achieve this, the grinding bowl is simply used with a radio transmitter located in the lid, without any modification to the mill itself. The monitored data is passed by a receiver to a computer running a special WINDOWSTM programme and allows for graphical presentation of the measurement values and collating them in an ExcelTM table.


Technical Data
• Data evaluation via PC
• Range of pressure build up to 15 m
• Operating time with fully charged battery approx. 80 h
• Adaptation of measurement rate to the signal dynamic for maximum possible battery life
• Sleep mode of the radio transmitter with consistent measurement signals
• System requirements: Standard WINDOWSTM-PC
• UHF radio transmitter, 10 mW, no approval or fees necessary
• Up to two transmitter components can be operated simultaneously in the mill
• Measurement rate single/ dual transmission operation of up to approx. 200 measurement value/s
• Pressure measurement range 0 to 800 kPa (8 bar)
• Temperature measurement range of the transmitter component 10 to 70 °C
• Resolution of pressure signal: < 0.024 kPa
• Resolution of temperature signal: 0.025 K
• Permissible transient (-2 s) heat of reaction 30 kJ
• Receiver component also functions as charging station for the batteries of transmitter component
• RS232 connection to PC
• 250 ml or 500 ml bowls made of stainless steel


Advantages of the GTM System
The GTM-System can be used wherever batch quantities are ground in a totally enclosed container. Special grinding bowls made of stainless steel in capacities 250 ml and 500 ml are available.


The GTM-System provides valuable information
• Investigations in the area of mechanical alloying for the production of new amorphous and nano-crystalline materials
• Monitoring and optimisation of grinding processes in industrial applications
Through measurement of the grinding bowl temperature, it is possible to make an integral statement on temperature as a process variable that takes account of the effects of all friction, impact and transformation processes. The continuous and highly sensitive measurement of the gas pressure in the grinding bowl allows the detection of very rapid reactions. The measured gas pressure describes, amongst other things, the interactions of the gas with the surfaces created during grinding (adsorption and desorption of gases).
Extremely rapid phase formations can for the first time be observed IN SITU as an adiabatic process without heat exchange from the system.
Adjustment of the grinding parameters rotational speed, balls/ sample material ratio and grinding time can be performed first time without expensive, time-consuming and abortive trials.
Due to precise measurement of reaction times, for example, new materials can be prepared through specific addition of reaction partners, or produced with special mechano-chemical properties.


Equipment: The gas pressure and temperature measuring system (GTM) consists of a 250 ml grinding bowl made of hardened, stainless steel with special lid, transmitter and separate receiver.
If further grinding bowls and transmitters are used, please ask for the respective order number!


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data
gas pressure and temperature measuring system (GTM) incl. 500 ml grinding bowl
No. 50.2540.00
gas pressure and temperature measuring system (GTM) incl. 500 ml grinding bowl

This Gas Pressure and Temperature Measuring System developed in cooperation with the Fraunhofer Institute for Applied Material Research (IFAM) in Dresden, is for use with the Planetary Mills PULVERISETTE 4, PULVERISETTE 5, PULVERISETTE 6 of the FRITSCH classic line transform them into analytical measurement systems.
Through the continuous direct measurement of gas pressure and temperature, it is possible to monitor thermal effects as well as physical and chemical reactions or pressure variations within the grinding bowl. To achieve this, the grinding bowl is simply used with a radio transmitter located in the lid, without any modification to the mill itself. The monitored data is passed by a receiver to a computer running a special WINDOWSTM programme and allows for graphical presentation of the measurement values and collating them in an ExcelTM table.


Technical Data
• Data evaluation via PC
• Range of pressure build up to 15 m
• Operating time with fully charged battery approx. 80 h
• Adaptation of measurement rate to the signal dynamic for maximum possible battery life
• Sleep mode of the radio transmitter with consistent measurement signals
• System requirements: Standard WINDOWSTM-PC
• UHF radio transmitter, 10 mW, no approval or fees necessary
• Up to two transmitter components can be operated simultaneously in the mill
• Measurement rate single/ dual transmission operation of up to approx. 200 measurement value/s
• Pressure measurement range 0 to 800 kPa (8 bar)
• Temperature measurement range of the transmitter component 10 to 70 °C
• Resolution of pressure signal: < 0.024 kPa
• Resolution of temperature signal: 0.025 K
• Permissible transient (-2 s) heat of reaction 30 kJ
• Receiver component also functions as charging station for the batteries of transmitter component
• RS232 connection to PC
• 250 ml or 500 ml bowls made of stainless steel


Advantages of the GTM System
The GTM-System can be used wherever batch quantities are ground in a totally enclosed container. Special grinding bowls made of stainless steel in capacities 250 ml and 500 ml are available.


The GTM-System provides valuable information
• Investigations in the area of mechanical alloying for the production of new amorphous and nano-crystalline materials
• Monitoring and optimisation of grinding processes in industrial applications


Through measurement of the grinding bowl temperature, it is possible to make an integral statement on temperature as a process variable that takes account of the effects of all friction, impact and transformation processes. The continuous and highly sensitive measurement of the gas pressure in the grinding bowl allows the detection of very rapid reactions. The measured gas pressure describes, amongst other things, the interactions of the gas with the surfaces created during grinding (adsorption and desorption of gases).
Extremely rapid phase formations can for the first time be observed IN SITU as an adiabatic process without heat exchange from the system.
Adjustment of the grinding parameters rotational speed, balls/ sample material ratio and grinding time can be performed first time without expensive, time-consuming and abortive trials.
Due to precise measurement of reaction times, for example, new materials can be prepared through specific addition of reaction partners, or produced with special mechano-chemical properties.


Equipment: The gas pressure and temperature measuring system (GTM) consists of a  500 ml grinding bowl made of hardened, stainless steel with special lid, transmitter and separate receiver.
If further grinding bowls and transmitters are used, please ask for the respective order number!


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data

ACCESSORIES FOR GRINDING IN INERT GAS AND FOR MECHANICAL ALLOYING - GASSING LID WITH VALVES AND SEAL RING FOR GRINDING BOWL 500 ML VOLUME

agate - SiO2, with steel casing
No. 50.8010.00
agate, with steel casing, 500 ml volume <i>classic line</i>

Gassing lid agate with steel casing with 2 valves and seal ring.


Through the use of this special lid (incl. seal ring) on an agate grinding bowl with 500 ml volume, the grinding bowl can be used for grinding with inert gas and mechanical alloying.


Two valves allow for easy and safe filling of the bowls with inert gas, while they are firmly clamped in the mill. A special additional Lock-System is required for gas-tight removal and transportation: order no. 90.1400.00.
Gassing lids with Swagelok valves are available on request.


Element Analysis
General specifications
MaterialAgate – SiO2
Chemical composition
ElementShare %
Silicon oxide– SiO299.9
Aluminium – Al2O3< 0.02
Iron oxide – Fe2O3< 0.02
Calcium oxide – CaO< 0.02
Magnesium – MgO< 0.02
Sodium carbonate – Na2O< 0.02
Potassium carbonate – K2O< 0.02
Manganese oxide – MnO< 0.02
Physical and mechanical properties
Density2.65 g/cm³
Hardness6.5 – 7 Mohs


Explanations on hardness data
silicon nitride - Si3N4 - with steel casing
No. 50.9150.00
silicon nitride, 500 ml volume <i>classic line</i>

Gassing lid silicon nitride with with steel casing with 2 valves and seal ring.


Through the use of this special lid (incl. seal ring) on a silicon nitride grinding bowl with 500 ml volume, the grinding bowl can be used for grinding with inert gas and mechanical alloying. 


Two valves allow for easy and safe filling of the bowls with inert gas, while they are firmly clamped in the mill. A special additional Lock-System is required for gas-tight removal and transportation: order no. 90.1400.00.
Gassing lids with Swagelok valves are available on request.


Element Analysis
General specifications
MaterialSilicon nitride - Si3N4
ISO/EN/DIN codeSNCB5
Chemical composition
ElementShare %
Al2 O3 Y2 O39
Si3 N491
Physical and mechanical properties
Density3.25 g/cm³
Hardness91.1 HRA


Explanations on hardness data
zirconium oxide - ZrO2
No. 50.9100.00
zirconium oxide, 500 ml volume <i>classic line</i>

Gassing lid zirconium oxide with 2 valves and seal ring.


Through the use of this special lid (incl. seal ring) on a zirconium oxide grinding bowl with 500 ml volume, the grinding bowl can be used for grinding with inert gas and mechanical alloying.


Two valves allow for easy and safe filling of the bowls with inert gas, while they are firmly clamped in the mill. A special additional Lock-System is required for gas-tight removal and transportation: order no. 90.1400.00.
Gassing lids with Swagelok valves are available on request.


Element Analysis
General specifications
MaterialZirconium oxide - ZrO2
Chemical composition
ElementShare %
Zirconium oxide – ZrO294.2 - 95.2
Hafnium oxide – HfO21 - 2
Magnesium oxide – MgO3.5
Silicon dioxide – SiO20.1
Aluminium oxide – Al2O30.1
Other0.1
Physical and mechanical properties
Density5.7 g/cm³
Hardness Vickers 1200 (HV10)


Explanations on hardness data
hardened, stainless steel - Fe - Cr
No. 50.8400.00
hardened, stainless steel, 500 ml volume <i>classic line</i>

Gassing lid hardened, stainless steel with 2 valves and seal ring.


Through the use of this special lid (incl. seal ring) on a hardened, stainless steel grinding bowl with 500 ml volume, the grinding bowl can be used for grinding with inert gas and mechanical alloying.


Two valves allow for easy and safe filling of the bowls with inert gas, while they are firmly clamped in the mill. A special additional Lock-System is required for gas-tight removal and transportation: order no. 90.1400.00.
Gassing lids with Swagelok valves are available on request.


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data
replacement seal ring Viton for gassing lid for agate bowls 500 ml volume
No. 50.8013.16
replacement seal ring made of Viton for gassing lid for agate grinding bowls  500 ml volume <i>classic line</i>

Replacement seal ring made of Viton for gassing lid, for agate grinding bowls with 500 ml volume except Agate.


replacement seal ring Viton for all gassing lids 500 ml volume
No. 50.1230.16
replacement seal ring for all gassing lids bowls for all other grinding bowls, 500 ml volume <i>classic line</i>

Replacement seal ring made of Viton for gassing lids, for all other grinding bowls with 500 ml volume.


ACCESSORIES FOR GRINDING IN INERT GAS AND FOR MECHANICAL ALLOYING - GASSING LID WITH VALVES AND SEAL RING FOR GRINDING BOWL 250 ML VOLUME

agate - SiO2 - with steel casing
No. 50.8100.00
agate, with steel casing, 250 ml and 80 ml volume <i>classic line</i>

Gassing lid agate with steel casing with 2 valves and seal ring.
Through the use of this special lid (incl. seal ring) on an agate grinding bowl with 250 ml and 80 ml volume, the grinding bowl can be used for grinding with inert gas and mechanical alloying.
Two valves allow for easy and safe filling of the bowls with inert gas, while they are firmly clamped in the mill. A special additional Lock-System is required for gas-tight removal and transportation: order no. 90.1400.00.
Gassing lids with Swagelok valves are available on request.


Element Analysis
General specifications
MaterialAgate – SiO2
Chemical composition
ElementShare %
Silicon oxide– SiO299.9
Aluminium – Al2O3< 0.02
Iron oxide – Fe2O3< 0.02
Calcium oxide – CaO< 0.02
Magnesium – MgO< 0.02
Sodium carbonate – Na2O< 0.02
Potassium carbonate – K2O< 0.02
Manganese oxide – MnO< 0.02
Physical and mechanical properties
Density2.65 g/cm³
Hardness6.5 – 7 Mohs


Explanations on hardness data
silicon nitride - Si3N4 - with steel casing
No. 50.8900.00
silicon nitride, 250 ml volume <i>classic line</i>

Gassing lid silicon nitride with with steel casing with 2 valves and seal ring.
Through the use of this special lid (incl. seal ring) on an silicon nitride grinding bowl with 250 ml volume, the grinding bowl can be used for grinding with inert gas and mechanical alloying. 
Two valves allow for easy and safe filling of the bowls with inert gas, while they are firmly clamped in the mill. A special additional Lock-System is required for gas-tight removal and transportation: order no. 90.1400.00.
Gassing lids with Swagelok valves are available on request.


Element Analysis
General specifications
MaterialSilicon nitride - Si3N4
ISO/EN/DIN codeSNCB5
Chemical composition
ElementShare %
Al2 O3 Y2 O39
Si3 N491
Physical and mechanical properties
Density3.25 g/cm³
Hardness91.1 HRA


Explanations on hardness data
zirconium oxide - ZrO2
No. 50.8950.00
zirconium oxide, 250 ml volume <i>classic line</i>

Gassing lid zirconium oxide with with steel casing with 2 valves and seal ring.
Through the use of this special lid (incl. seal ring) on a zirconium oxide grinding bowl with 250 ml volume, the grinding bowl can be used for grinding with inert gas and mechanical alloying. 
Two valves allow for easy and safe filling of the bowls with inert gas, while they are firmly clamped in the mill. A special additional Lock-System is required for gas-tight removal and transportation: order no. 90.1400.00.
Gassing lids with Swagelok valves are available on request.


Element Analysis
General specifications
MaterialZirconium oxide - ZrO2
Chemical composition
ElementShare %
Zirconium oxide – ZrO294.2 - 95.2
Hafnium oxide – HfO21 - 2
Magnesium oxide – MgO3.5
Silicon dioxide – SiO20.1
Aluminium oxide – Al2O30.1
Other0.1
Physical and mechanical properties
Density5.7 g/cm³
Hardness Vickers 1200 (HV10)


Explanations on hardness data
hardened, stainless steel - Fe - Cr
No. 50.8500.00
hardened, stainless steel, 250 ml volume <i>classic line</i>

Gassing lid hardened, stainless steel with 2 valves and seal ring.
Through the use of this special lid (incl. seal ring) on a hardened, stainless steel grinding bowl with 250 ml volume, the grinding bowl can be used for grinding with inert gas and mechanical alloying. 
Two valves allow for easy and safe filling of the bowls with inert gas, while they are firmly clamped in the mill. A special additional Lock-System is required for gas-tight removal and transportation: order no. 90.1400.00.
Gassing lids with Swagelok valves are available on request.


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data
hardmetal tungsten carbide - WC - with steel casing
No. 50.8600.00
hardmetal tungsten carbide, 250 ml volume <i>classic line</i>

Gassing lid hardmetal tungsten with steel casing with 2 valves and seal ring.
Through the use of this special lid (incl. seal ring) on a hardmetal tungsten carbide grinding bowl with 250 ml volume, the grinding bowl can be used for grinding with inert gas and mechanical alloying. 
Two valves allow for easy and safe filling of the bowls with inert gas, while they are firmly clamped in the mill. A special additional Lock-System is required for gas-tight removal and transportation: order no. 90.1400.00.
Gassing lids with Swagelok valves are available on request.


Element Analysis
General specifications
MaterialTungsten carbide - WC
ISO/EN/DIN code
Chemical composition
ElementShare %
Tungsten carbide – TC88
Cobalt – Co 12
Physical and mechanical properties
Density14.3 g/cm³
Hardness89.7 HRA


Explanations on hardness data
replacement seal ring Viton for gassing lid for agate bowls 250 ml + 80 ml volume
No. 50.2011.16
replacement seal ring Viton for gassing lids  for agate grinding bowls <i>classic line</i> 250 ml + 80 ml volume

Replacement seal ring made of Vitonfor gassing lids for agate grinding bowls classic line 250 ml + 80 ml volume.


replacement seal ring Viton for gassing lid for silicon nitride bowls 250 ml volume
No. 50.2010.16
replacement seal ring for gassing lid for silicon nitride bowls 250 ml volume

Replacement seal ring made of Viton for gassing lid for grinding bowls silicon nitride bowls 250 ml volume.


replacement seal ring Viton for gassing lid for all other bowls 250 ml volume
No. 50.2230.16
replacement seal ring Viton for  gassing lid for all other bowls 250 ml volume

Replacement seal ring made of Viton for gassing lids for all  other grinding bowls classic line  with 250 ml volume.


 


 


ACCESSORIES FOR GRINDING IN INERT GAS AND FOR MECHANICAL ALLOYING - GASSING LID WITH VALVES AND SEAL RING FOR GRINDING BOWL 80 ML VOLUME

agate - SiO2 - with steel casing
No. 50.8100.00
agate, with steel casing, 250 ml and 80 ml volume <i>classic line</i>

Gassing lid agate with steel casing with 2 valves and seal ring.
Through the use of this special lid (incl. seal ring) on an agate grinding bowl with 250 ml and 80 ml volume, the grinding bowl can be used for grinding with inert gas and mechanical alloying.
Two valves allow for easy and safe filling of the bowls with inert gas, while they are firmly clamped in the mill. A special additional Lock-System is required for gas-tight removal and transportation: order no. 90.1400.00.
Gassing lids with Swagelok valves are available on request.


Element Analysis
General specifications
MaterialAgate – SiO2
Chemical composition
ElementShare %
Silicon oxide– SiO299.9
Aluminium – Al2O3< 0.02
Iron oxide – Fe2O3< 0.02
Calcium oxide – CaO< 0.02
Magnesium – MgO< 0.02
Sodium carbonate – Na2O< 0.02
Potassium carbonate – K2O< 0.02
Manganese oxide – MnO< 0.02
Physical and mechanical properties
Density2.65 g/cm³
Hardness6.5 – 7 Mohs


Explanations on hardness data
zirconium oxide - ZrO2
No. 50.8840.00
zirconium oxide, 80 ml volume <i>classic line</i>

Gassing lid zirconium oxide with 2 valves and seal ring.
Through the use of this special lid (incl. seal ring) on a zirconium oxide grinding bowl with 80 ml volume, the grinding bowl can be used for grinding with inert gas and mechanical alloying.
Two valves allow for easy and safe filling of the bowls with inert gas, while they are firmly clamped in the mill. A special additional Lock-System is required for gas-tight removal and transportation: order no. 90.1400.00.
Gassing lids with Swagelok valves are available on request.


Element Analysis
General specifications
MaterialZirconium oxide - ZrO2
Chemical composition
ElementShare %
Zirconium oxide – ZrO294.2 - 95.2
Hafnium oxide – HfO21 - 2
Magnesium oxide – MgO3.5
Silicon dioxide – SiO20.1
Aluminium oxide – Al2O30.1
Other0.1
Physical and mechanical properties
Density5.7 g/cm³
Hardness Vickers 1200 (HV10)


Explanations on hardness data
hardened, stainless steel - Fe - Cr
No. 50.8700.00
hardened, stainless steel, 80 ml volume <i>classic line</i>

Gassing lid hardened, stainless steel with 2 valves and seal ring.
Through the use of this special lid (incl. seal ring) on a hardened, stainless steel grinding bowl with 80 ml volume, the grinding bowl can be used for grinding with inert gas and mechanical alloying.
Two valves allow for easy and safe filling of the bowls with inert gas, while they are firmly clamped in the mill. A special additional Lock-System is required for gas-tight removal and transportation: order no. 90.1400.00.
Gassing lids with Swagelok valves are available on request.


Element Analysis
General specifications
Materialhardened stainless steel – 1.4125
ISO/EN/DIN codeX105CrMo17
Chemical composition
ElementShare %
Iron– Fe81.4
Chromium – Cr17
Carbon – C1.1
Molybdenum – Mo0.5
Physical and mechanical properties
Density 7.7 kg/dm³
Hardness~ 60 HRC


Explanations on hardness data
hardmetal tungsten carbide - WC - with steel casing
No. 50.8880.00
hardmetal tungsten carbide 80 ml volume <i>classic line</i>

Gassing lid hardmetal tungsten carbide with steel casing with 2 valves and seal ring.
Through the use of this special lid (incl. seal ring) on a hardmetal tungsten carbide grinding bowl with 80 ml volume, the grinding bowl can be used for grinding with inert gas and for mechanical alloying.
Two valves allow for easy and safe filling of the bowls with inert gas, while they are firmly clamped in the mill. A special additional Lock-System is required for gas-tight removal and transportation: order no. 90.1400.00.
Gassing lids with Swagelok valves are available on request.


Element Analysis
General specifications
MaterialTungsten carbide - WC
ISO/EN/DIN code
Chemical composition
ElementShare %
Tungsten carbide – TC92.94
Cobalt – Co7.00
Other0.06
Physical and mechanical properties
Density14.9 g/cm³
Hardness91.5


Explanations on hardness data
replacement seal ring Viton for gassing lid for agate bowls 250 ml + 80 ml volume
No. 50.2011.16
replacement seal ring Viton for gassing lids  for agate grinding bowls <i>classic line</i> 250 ml + 80 ml volume

Replacement seal ring made of Vitonfor gassing lids for agate grinding bowls classic line 250 ml + 80 ml volume.


replacement seal ring Viton for gassing lid for all other grinding bowls
No. 50.4230.16
replacement seal ring Viton for gassing lid for all other grinding bowls

Replacement seal ring made of Viton for gassing lid for all grinding bowls classic line, 80 ml volume.


additional lock-system
No. 90.1400.00
additional lock-system <i>classic line</i>

Additional lock-system for all grinding bowls 500 ml, 250 ml, 80 ml volume (for the transport of the closed grinding bowl).
With this special additional Lock-System, you can gas-tight seal your grinding bowls for transport between filling in the glove box and the mill. Also sutiable for the transport of the closed grinding bowl with a normal lid or gassing lid.
With an additional adapter, it can also be used for small grinding bowls.


CERTIFICATION

IQ/OQ documentation (questionnaire format - implementation not included)
No. 96.0220.00
IQ/OQ documentation (questionnaire format - implementation by customer)

IQ/OQ documentation (questionnaire format - implementation by customer)
for the independent utilization for the support of instrument qualification in the quality management system for the PLANETARY MILL PULVERISETTE 5 classic line.


 


 


 


Order No.
05.6020.00
Janine Allkofer
FRITSCH GmbH - Milling and Sizing
Industriestrasse 8
55743 Idar-Oberstein
Phone +49 67 84 70 0

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