Fields of Application

Smooth Roll crushers are especially suitable for medium and fine grinding processes, demanding a strictly defined portion of fine grain and low dust content.

Feed Materials

Raw materials, secondary raw materials and by-products such as coke duff, coal, rock, fireclay, salt, glass and similar products.

Mode of Operation

The crushing rolls are driven individually and directly by means of electro-motors or with coupling and gears, counter-rotating by V-belts. The material is fed into the machine by means of conveyors and is spread over the whole width of the roll. The roll diameter grants an optimum angle of entry. The careful adjusting of the roller speed towards the falling speed of the feeding material guarantees a gentle grinding process with a minimum of wear and tear.

Special Characteristics

The roller shells are wearing parts. These are connected to the roller shafts by roller discs and braced with tie rods. This effective assembly method makes for reutilization of the supporting roller structure and also for quick replacement of worn roller shells.

The roller shells are made of highly wear-resistant cast alloys.

The possible efficiency is between 60-70% of the cover thickness. In order to facilitate maintenance, the smooth roller shafts are arranged in labyrinth-sealed plummer blocks with lubricated, amply dimensioned spherical roller bearings. Depending on the hardness of the feeding material, a machining of the roller surface at different intervals is necessary. An optional machining device can easily do this.

The installed rolls can be cylindrically turned.


Mechanical horizontal adjustment: This adjustment consists of two hydraulic differential cylinders and the accompanying hydraulic aggregate. All mechanical adjustment functions are fully integrated into the hydraulic systems.


  • High and constant capacity
  • Low susceptibility to breakdowns
  • Long life
  • Gentle crushing
  • Easy replacement of worn and spare parts
  • Wide range of application
  • Produces a minimum of fine grains