Disc Mill DM 200
 The RETSCH Disc Mill DM 200 is used for batchwise or continuous preliminary and fine comminution of medium-hard to hard-brittle solids (up to 8 Mohs). Thanks to its robust design, it can be used under rough conditions in laboratories and pilot plants, as well as online for the quality control of raw materials.
Application Examples
ores, coal, coke, slag, dental ceramics, steatite, sintered ceramics, electrotechnical porcelain, chamotte, bauxite, quartz, clinker, gypsum, chalk, frits, glasses, dried soil samples, sewage, sludge, drilling cores and many other materials
Product Advantages
- accurate gap setting for reproducible grinding results
- short grinding times, high final fineness
- observation window for checking the gap width
- good grinding chamber accessibility
- contamination-free grinding with grinding discs made from 4 different materials
- grinding discs with long working life
- simple operation
- dust-free grinding and easy cleaning
- maintenance-free 3-phase geared motor
- approved safety (TÜV, CE)
- 2 year warranty
Features
| Applications |
preliminary and fine comminution |
| Feed material |
medium-hard, hard, brittle |
| Material feed size* |
< 20 mm |
| Final fineness* |
up to 100 µm |
| Collector capacity |
2.5 l |
| Throughput* |
up to 150 kg/h |
| Gap width setting |
continuous, 0.1 - 5 mm |
| Grinding disc speed at 50 Hz (60 Hz) |
440 min-1 (528 min-1) |
| Drive |
3-phase geared motor |
| Power consumption |
1850 W |
| W x H x D |
440 x 400 x 870 mm |
| Net weight |
approx. 140 kg |
*depending on feed material and instrument configuration/settings
Function Principle  In the DM 200 the feed material enters the dustproof chamber from the filling hopper and is fed centrally between two vertical grinding discs. A moving grinding disc rotates against a fixed one and draws in the feed material. The necessary comminution effects are generated by pressure and frictional forces. The progressively arranged grinding disc meshing first subjects the sample to preliminary crushing; centrifugal force then moves it to the outer regions of the grinding discs where fine comminution takes place. The processed sample exits through the grinding gap and is collected in a receiver. The gap width between the grinding discs is continuously adjustable and can be adjusted during operation in the range between 0.1 and 5 mm; an additional observation window is provided for checking the gap setting.
Product overview
Mortar & Disc Mills
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