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Gypsum

Protocol number:	M001279
Industry:	Chemistry
Feed Size:	< 2 cm
Desired Fineness:	< 0,5 mm
Quantity:	200 g
Recommendation:	A constant grinding of higher amounts is possible with Disk Mill PULVERISETTE 13. For a maximum length of < 0,5 mm; we recommend using a gap setting of 0,3 mm.

Result 1

	Disk Mill PULVERISETTE 13 classic line gap setting: 0,3 mm
Equipment:	grinding disks made of hardened steel cast
Feed quantity:	200 g
Feed Size:	< 2 cm
Grinding time:	40 s
Final fineness:	< 0,5 mm
Comments:	The 200 g of sample have been ground within 40 seconds. After grinding, all particles use to be < 0,3 mm in one dimension. The maximum length of particles use to be about 0,5 mm (determined by Vibratory Sieve Shaker ANALYSETTE 3 Pro and a test sieve of 0,5 mm mesh). A grinding of higher amounts is still possible. The gap between the disks is not blocked; only electrostatic charged sample is sticking lightly inside the grinding chamber and can be removed easily by vacuuming with a soft brush.