What to do if the jaw crusher discharges unevenly?

A jaw crusher’s main components are a fixed jaw plate and a movable jaw plate. During operation, the motor primarily drives a belt and pulley, which, via an eccentric shaft, moves the movable jaw up and down, changing the angle between the toggle plate and the movable jaw. When the movable jaw approaches the tooth plate of the frame, it crushes the material. When the tooth plate moves away, the crushed material in the crushing chamber is automatically discharged by gravity, allowing continuous operation.

What should I do if my jaw crusher’s discharge is uneven? Regular routine inspections of the crusher can help identify problems early. When the crusher’s discharge particle size is uneven, carefully identify the cause and promptly troubleshoot it to avoid the inconvenience of machine downtime.

Uneven discharge particle size from a jaw crusher is primarily caused by the following:

1. The motor wiring is incorrectly positioned, causing the main unit to move in the opposite direction (i.e., the movable jaw rotates clockwise), or the motor is connected in a star configuration instead of a delta configuration.

2. The jaw plate is misaligned, causing the tooth tops to align with each other.

3. Excessive clearance between the movable jaw and the bearing due to wear causes the bearing outer ring to rotate relative to each other.

4. The discharge opening is smaller than the specified limit.

5. The hardness or toughness of the crushed material exceeds the range specified in the instruction manual.

6. The voltage at the work site is too low.

A jaw crusher is a crucial piece of equipment in mining crushing production lines and mining operations. It features high crushing force, simple construction, easy maintenance, uniform particle size, and reliable operation. Choosing the right mining crusher can double the efficiency of your production line. If you have further questions about crushing and sand making, please contact Shengbang Machinery via WhatsApp at +8613949025317.