How Does a Jaw Crusher Work? Complete Working Principle & Maintenance
A jaw crusher is the primary crushing machine in mining, quarry, stone crushing and construction waste recycling industries. Understanding its working principle and maintenance rules can help operators reduce failure rate and improve production efficiency.
Jaw Crusher Working Principle
The jaw crusher uses compressive force to crush stones. The motor drives the eccentric shaft, making the movable jaw plate move reciprocally toward the fixed jaw plate. Raw stones are squeezed, fractured and crushed in the crushing cavity.
Large stones are broken repeatedly. When particle size is smaller than the discharge gap, finished aggregates fall down and are discharged automatically.
Main Structure
Fixed jaw & movable jaw
Eccentric shaft & bearings
Toggle plate & tension spring
Adjusting seat for discharge size
Daily Maintenance Tips
Check jaw plate wear every day; replace worn parts in time
Keep bearing lubrication clean to avoid overheating
Adjust discharge gap uniformly according to required stone size
Clean material blockage before shutdown
Check belt tightness regularly
Mobile VS Stationary Jaw Crusher Comparison
表格
Item | Stationary Jaw Crusher | Mobile Jaw Crusher |
|---|---|---|
Installation | Foundation required | No foundation needed |
Mobility | Fixed position | Wheeled, freely movable |
Power | Electric only | Electric / Diesel optional |
Application | Long-term quarry | Remote mine, road project |
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how does a jaw crusher work, jaw crusher working principle, jaw crusher maintenance tips
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