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Home > Products > Milling > Rotor Mills > SK 100 > Function & Features

Cross Beater Mill SK 100

The Cross Beater Mill SK 100 comfort is suitable for coarse and fine size reduction, either in batches or continuously. It can process medium-hard and brittle materials with a hardness of up to approx. 6 on Mohs’ scale. The SK 100 is intended for universal use: from sample preparation in laboratories and industrial plant, through pilot installations up to preparing sample batches in production facilities.

Application Examples

cement clinker, coal, coke, glass, gravel, minerals, ores, oxide ceramics, slag, soils, ...

Product Advantages
  • high throughput
  • high final fineness
  • versatile in use
  • easily changeable bottom sieves
  • wide range of accessories
  • maintenance-free direct drive
  • safe design to CE standard
  • 2-year warranty
Features
Applications size reduction
Field of application agriculture, chemistry / plastics, construction materials, environment, glass / ceramics, mineralogy / metallurgy
Feed material medium-hard, brittle
Size reduction principle impact
Material feed size* < 15 mm
Final fineness* < 100 µm
Speed at 50 Hz (60 Hz) 2850 min-1 (3420 min-1)
Rotor peripheral speed 22 m/s (26 m/s)
Material of grinding tools hardened steel, stainless steel, cast iron, steel 1.1740 (for heavy-metal free grinding)
Sieve sizes conidur holes 0.12 / 0.20 / 0.25 / 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
Collector capacity 5 l / optional: 30 l
Drive 1-phase motor / 3-phase motor
Drive power 1.1 kW
Protection code IP 54
W x H x D closed 560 x 1150 x 700 mm (with base frame)
Net weight ~ 57 kg (with base frame)
Workplace related emission value LpAeq 81 dB(A)
*depending on feed material and instrument configuration/settings  
Function Principle
Size reduction in the SK 100 takes place by hammering, impact and shearing effects. The feed material passes from the hopper directly into the center of the grinding chamber, where it is caught by the cross beater and ground between the baffle plates of the cross beater and the toothed grinding insert. As soon as the material is smaller than the aperture size of the bottom sieve used, it passes through the sieve and enters the collecting receptacle. The air drawn in through the hopper by the cross beater accelerates the discharge of the ground material. The airborne fine fraction is separated off by a downstream filter system.