The four roll crusher is suitable for solid materials with compressive strength less than 300Mpa, moisture content less than 30%, and requires high crushing ratio for fine and medium crushing operations.Solid materials such as crushed iron ore, quartz, potassium (sodium)feldspar, limestone, river pebbles, metallic silicon, barite.basalt, granite, steel slag, cement clinker,construction waste (concrete), shale, quickl-ime, coal, coke, slag, clay, gypsum, bentonite, fertilizers, chemical raw materials,etc.lt has the characteristics of low main tenance costs,high crushing ratio, low moisture requirements, low power consumption, reliable performance, low dust, and low noiseThe four roll crusher is equipped with four crushing rollers, which can be freelyselected from toothed roller surface, welding roller surface, and flat roller surface.It is suitable for medium and fine crushing operations with feed particle size lessthan 90mm and finished product particle size requirements of 0.3-10mm.

If the compressive strength of the material exceeds 200Mpa, it is recommended to choose a weighted machine.The transmission method can be divided into two types aceording to user requirements: V-belt and coupling transmission (hard link). This equipment can be powered by a diesel or gasoline engine when there is no electricity in the mine.

The four roll crusher uses four high-strength wear-resistant crushing rollersto crush materials by generating high extrusion and shear forces through relativerotation.

After entering the gap between the upper two rollers (V-shaped crushing chamber), the material is subjected to the squeezing and shearing effects of the relative rotation of the two rollers. After the first squeezing and shearing of the material (coarse crushing), it enters the lower two rollers of relative rotation again,and is then squeezed, sheared, and ground (fine crushing)by the lower two rollersto the required particle size before being discharged from the discharge port.

Compact structure, small footprint, high crushing ratio, low maintenance cost,reliable performance, low dust,and low noise.