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waste of leaves and branches

Protocol number:	M0097301
Industry:	Biology, Agriculture and forestry
Feed Size:	3-8 cm
Desired Fineness:	< 0,25 mm
Quantity:	30 g
Recommendation:	A Cutting Mill PULVERISETTE 15 can be used for grinding the sample to the desired fineness. Also a Universal Cutting Mill PULVERISETTE 19 might be suitable and use to have big advantages in case of cleaning, handling and available accessories (cylone for high amounts, knives made of hardmetal tungsten carbide, etc.).

Result 1

	Cutting Mill PULVERISETTE 15
Equipment:	rotor with straight cutting edges and fixed knives made of tool steel + sieve insert 0.25 mm, trapezoidal perforation; made of stainless steel
Feed quantity:	30 g
Feed Size:	8 cm
Grinding time:	4 min
Final fineness:	< 0,25 mm
Comments:	After 3 minutes of grinding, most of the sample has been ground and felt into the collecting vessel. After a further minute (a total of 4 minutes), only a light rose of output has been observed. For this, we interrupted the grinding process after 4 minutes. A small amount of sample use to lie loose on top of the sieve insert, minimum amount of dust is sticking to the housing by electrostatic charge. Cleaning has been performed rapidly by vacuuming with a soft brush. All ground sample was passing the 0,25 mm sieve insert. Because sample pieces can pass the mesh longitudinal, longer pieces can be found inside of the collecting vessel. A grinding of higher amounts is still possible.