Reasons and Solutions of Common Faults of Hammer Crusher

Hammer crusher is suitable for material with medium hardness and brittle property whose compressive strength is no more than 300 MPa and humidity is not greater than 15 %, such as coal, cement, gypsum, alum, brick, tile, limestone and so on. However, there will be some faults in the running process of the hammer crusher. Now let's make a short analysis to the common faults of the hammer crusher.

1. Bearing overheating reasons: lack of grease; grease contamination deterioration; bearing damage. Elimination methods: filling the appropriate amount of grease; bearing grease should be 50% of its space volume; clean bearings; replace grease regularly.

2. Reasons of excessive discharging size: large hammer wear; sieve broken. Remedy: Replace the hammer and sieve bar.

3. Reason for production reduction: Screen gap is blocked; uneven feeding; Exclusion method: clean up the cracks in the screen bar; adjust the feeding mechanism.

4. Elastic coupling causes percussion: pin loose; Elastic ring wear. Remedy: Stop and tighten pin nut; replace elastic ring.

5. Knocking reason inside of the machine: the non-crushed material enters the inside of the machine; the liner fastener loosens and the hammer strikes the lining; the hammer or other part breaks. Solutions: clean up the crushing chamber; check the tightening of the liner and the gap between the hammer and the screen; replace the broken parts.