Four Roll Crusher - Optimized For Fine Grinding Processes| Adjustable Crushing Gap, Integrated Overload Protection, Efficient Material Feeding

• Fertilizer
  industry
• Power
  plant technology
• Chemical
  industry

Mode of Operation

The crushing rolls are individually or driven in pair by electrical motors. Counterrotating via V-belts. The material is fed into the primary crushing stage by conveyors while it is spread over the whole width of the roll. The favourable angle of entry. determined by the optimum arrangement of the primary crusher rolls and corresponding grooves guarantees efficient feeding into the primary crushing stage, even in case of large feed lumps.

The optimum material guiding and the careful adjusting of the roll diameter towards the roll speed of both crushing stages guarantee a gentle grinding process with a minimum of wear and tear.

Special Features

Gap width of the primary crushing stage may be adjusted independently of the secondary crushing stage and ensures an easy and optimum coordination between the crushing stages.

Depending on the application. the primary crusher rolls are equipped with either grooves or teeth. In case feed materials are used with a tendency to clog, the crushing chamber and the material guides are lined with rubber.

The Four Roll Crusher integrates an overload protection in both crushing stages. Which allows foreign particles to pass without causing damage to the machine.

In order to facilitate maintenance, the roller shafts are arranged in amply-dimensioned spherical roller bearings. The bearing housings are equipped with lubricated labyrinths to avoid dust and dirt penetration.