Retsch Cross Beater Mill SK 300
The Cross Beater Mill SK 300 is suitable for coarse and fine size reduction, either in batches or continuously. It can process medium-hard and brittle materials and is easy to operate.
For increased sample discharge and for processing heat-sensitive samples, an optionally available cyclone unit unit can be used instead of the gravity outlet.
PRODUCT ADVANTAGES
- wide range of accessories including various collection and feeding systems, rotors and sieves
- defined final fineness due to bottom sieves with aperture sizes from 0.12 - 10 mm
- adjustable speed for different applications
- gravity outlet with 5l or 30 L collecting vessel for batchwise collection of larger sample quantities
- optionally available cyclone unit with 0.25 - 0.5 - 1 - 2 - 5 or 30 liters collecting vessel
- easy cleaning thanks to exchangeable push-fit grinding insert, rotor and sieve
- electric engine brake
- central locking device
FEATURES
| Applications | size reduction |
| Field of application | agriculture, chemistry / plastics, construction materials, environment / recycling, geology / metallurgy, glass / ceramics |
| Feed material | medium-hard, brittle |
| Size reduction principle | impact |
| Material feed size* | < 25 mm |
| Final fineness* | < 100 µm |
| Speed at 50 Hz (60 Hz) | 2000 - 4000 min-1 (in steps of 200 min-1) |
| Speed setting | yes |
| Rotor peripheral speed | 15.5 m/s .. 31 m/s |
| Types of rotors | stainless steel / cast iron |
| Material of grinding tools | hardened steel, stainless steel, cast iron, steel 1.1740 (for heavy-metal free grinding) |
| Sieve sizes | trapezoid holes 0.12 / 0.20 / 0.25 / 0.35 / 0.50 / 0.75 / 1.00 / 1.50 / 2.00 mm round holes 3.00 / 4.00 / 5.00 / 6.00 / 8.00 / 10.00 mm |
| Dust extraction unit | optional cyclone |
| Collector capacity | 5 l / optional: 30 l |
| Drive | 3-phase motor with frequency converter |
| Drive power | 1.1 kW |
| Electrical supply data | 200 .. 240 V 50 / 60 Hz |
| Power connection | 1-phase |
| Protection code | IP 41 |
| Power consumption | 1.5 kW |
| W x H x D closed | 600 x 1200 x 700 mm (with base frame) |
| Net weight | ~ 60 kg (with base frame) |
| Remark weight (without hopper etc.) | ~ 50 kg (without base frame) |
| Standards | CE |
*depending on feed material and instrument configuration/settings
