The parts you asked about are indeed the "most consumable" parts of a jaw crusher. Regular replacement is key to ensuring the machine's efficient operation. Let me summarize for you:
Main Wear Parts and Replacement Cycles of Jaw Crusher
Part Name | Main Function | Replacement Cycle | Key Notes
Jaw Plate (Tooth Plate) | The main working part for directly crushing materials. | Approximately several months to half a year. | Replace when severely worn (e.g., 3/5 of the tooth height worn away), otherwise the product particle size will increase. Initially, it can be used in reverse to extend its service life.
Side Liner Plate | Protects the inner side of the frame, preventing material wear. | Approximately every six months. | Replace when wear reaches 2/5.
Toggle Plate (Thrust Plate) | Transmits power and acts as a safety part. | Usually replaced every six months, or immediately when worn or broken. | Regularly check for wear and cracks.
Bearing Bearing (Babbitt Liner) | Supports the eccentric shaft and reduces friction. | Approximately two years. After the expiration date, the Babbitt alloy must be recast.
Eccentric Shaft/Mandrel: The core component driving the moving jaw. Replace every few years or longer when severely worn. Replace when the journal size decreases by more than 5% of its original size.
Spring Rod and Spring: Adjusts the discharge port and buffers impact. Replace as needed when damaged or malfunctioning. Regularly check elasticity and wear.
Note: The above cycles are general references. Actual cycles need to be adjusted based on material hardness, crushing intensity, working environment, etc., and should follow the equipment manual and manufacturer's recommendations.
