The working principle of limestone jaw crusher is to crush materials through the relative movement between the movable jaw and the fixed jaw. It uses extrusion and shear force to crush the material into smaller particles and discharge it through the discharge port.

Limestone Crushing process:

• When the movable jaw moves forward, the angle between it and the fixed jaw gradually decreases, forming an extrusion zone.

• After the material is fed into the crushing chamber, it is subjected to the extrusion and shear force between the movable jaw and the fixed jaw.

• The material is subjected to strong crushing in the extrusion zone and is gradually crushed into smaller particles.

Crushing force analysis

• The crushing force is mainly determined by the angle between the movable jaw and the fixed jaw and the driving force of the eccentric shaft.

• The smaller the angle, the greater the crushing force; the larger the angle, the smaller the crushing force.

• The greater the driving force of the eccentric shaft, the greater the crushing force, which can improve the crushing efficiency and crushing ratio.