High Density Polyethylene (HDPE)

For a grinding of HDPE to < 400 µm as requested, we recommend using a sieve ring with 0,5 mm trapezoidal perforation. With this kind of sieve ring, majority of ground particles will should be finer as 250 µm.

By using a 0,5 mm sieve ring, no pre grinding step with coarse sieve rings (e.g. 1,5 mm) will be required, sample can be ground directly in one step. Also a previous embrittlement is not required by grinding this way.

For 20 g of sample, about 2,5 min use to be necessary for grinding. Afterwards, sieve ring and impact rotor use to be free of residues. Even higher amount of sample can be ground.