What is the main difference between the jaw crusher and the roll crusher

1. Jaw crusher

The jaw crusher is a device that breaks materials by moving the jaw plate. It is composed of frame, jaw plate, eccentric shaft, rocker arm, adjusting device and other components. Among them, the frame is the support structure of the crusher, the jaw plate is the working part of the crushing material, the eccentric shaft is the power mechanism that drives the swing of the jaw plate, the rocker arm is the mechanism that connects the eccentric shaft and the jaw plate, and the adjusting device is used to adjust the gap and inclination Angle of the jaw plate. Jaw plates are usually made of high manganese steel with good wear resistance.

The working principle of the jaw crusher is: when the eccentric shaft rotates, the rocker arm drives the jaw plate to move, so that the material is sandwiched between the two jaw plates, and then breaks the material through the friction and impact of the jaw plate. The broken material is discharged from the discharge port. The jaw crusher is suitable for the crushing of medium hardness and brittle materials, such as limestone, quartz, sandstone, etc.

2. Roll crusher

A roller crusher is a device that breaks materials through two parallel rollers. It consists of frame, drum, hydraulic system, motor and other components. Rollers are usually made of cemented carbide or high manganese steel and are called fixed rollers and active rollers, respectively. The fixed roller is fixed on the frame, and the active roller applies pressure through a hydraulic system or a spring system to clamp the material between the fixed roller and the active roller, so that it is broken.

The working principle of the roller crusher is: when the material is sent into the crushing chamber, the active roller exerts pressure through the hydraulic system or the spring system, and the material is sandwiched between the fixed roller and the active roller, so that it is broken. Then the broken material is discharged from the discharge port. Roller crusher is suitable for crushing medium hardness and viscous materials, such as coal, coke, limestone and so on.

In general, jaw crushers and roll crushers are suitable for different types of materials and crushing requirements. The jaw crusher is suitable for the crushing of medium hardness and brittle materials, and the roll crusher is suitable for the crushing of medium hardness and viscous materials.