2PG400x250 double roller crusher for crushing stone

Roller crusher is also called double roll crusher, double teeth roll crusher etc. The surface of roller crusher are made of high manganese steel, which can stand up to heat treatment. is widely used for crushing high hard and medium hard materials in such industrial departments such as metallurgy, building material and refractory. It has the features of low noise, little powder dust, reliable performance and convenient maintenance. The grain size of the input material is large, the particle size of the output product can be controlled, and it is possible to effectively destroy the material whose compressive strength is less than 160 MPa.

Working Principle:

The roller crusher will crush the crushed material through the feeding mouth into the two rollers, After being squeezed and crushed, the finished material falls naturally. When there are too hard or can not be broken, the roller in hydraulic cylinder or spring under the role of automatic retreat, so that the gap between the roller increased, too hard or not broken objects fall, thus protecting the machine from damage. The two rollers rotating in the opposite direction have clearance, change the clearance, control the product big discharge granularity. Double roller crusher's the materials by relying on the two round rollers rotating at the opposite direction, and four-roll crusher crushes the materials by relying on the two pairs of round rollers rotating at the opposite direction.