muck (from chicken farm, dried)

Universal Cutting Mill PULVERISETTE 19 Speed 300-3000 rpm

standard rotor with V-cutting edges and fixed knives made of tool steel

+ sieve cassette: 1 mm trapezoidal perforation, stainless steel

Grinding has been performed without any problems.

A grinding of higher amounts is still possible.

Universal Cutting Mill PULVERISETTE 19 Speed 300-3000 rpm

standard rotor with V-cutting edges and fixed knives made of tool steel

+ sieve cassette: 0.5 mm trapezoidal perforation stainless steel

After a grinding time of 4 minutes, all sample has been ground successfully to < 0,5mm.

Much higher throughput can be achieved by using the active sample exhauster system with cyclone separator.

With the optional cyclone separator, about 2800 L/min of air will remove all ground particles from the grinding chamber when they are able to pass the used sieve cassette.

Also a additional chilling of sample (and all grinding parts) will be provided this way.

The cyclone use to be equipped with a HEPA filter which hinders fine ground particles to be blown out.

Planetary Mono Mill PULVERISETTE 6 classic line

main disk speed: 430 rpm

500 ml grinding bowl made of tempered steel

+ 25x 20 mm ø tempered steel grinding balls

With ~100g of sample, the bowl will be filled to the maximum. After a grinding time of 2 minutes, sample already starts sticking to bowl and balls.

This uses to happen after the majority of particles reached a fineness of < 20-30µm. Interacting forces between fine ground particles will become bigger as their own g-force. Therefore, particles will stick to each other and just become compressed by the used grinding balls. These clusters of particles also contain bigger particles which will not be ground any further too.

Especially this sample use to stick faster as usual. Still bigger particles (> 0,5mm as desired) can be found.

For this, a Planetary Mono Mill PULVERISETTE 6 classic line is not recommended for grinding your sample.