Overview
The compression spring (toggle spring) is a critical elastic component in a jaw crusher, installed on the toggle rod at the rear of the machine. It maintains constant preload tension on the toggle plate, ensuring the toggle remains in contact with both the moving jaw and the adjustment seat, and returns the moving jaw to its open position after each crushing stroke.
Our compression springs are manufactured from 60Si2Mn or 50CrVA spring steel , with closed and ground ends for stable mounting. The springs undergo quenching and tempering heat treatment followed by shot peening to achieve high elastic limit, excellent fatigue resistance and long service life under continuous cyclic compression.
Quality & Application
Each compression spring passes comprehensive inspection including compression load testing, dimension verification and surface quality assessment before shipment. Anti-corrosion coating is applied for protection during storage and transit.
Standard compression springs are stocked for all common PE and PEX series jaw crusher sizes. Custom wire diameters, coil counts, free lengths and spring rates are available for specific crusher configurations. A properly specified compression spring is essential for reliable toggle plate operation, consistent jaw return and uninterrupted crushing performance in mining and quarry operations.
Key Features
- Premium Spring Steel: 60Si2Mn or 50CrVA spring steel provides high elastic limit and fatigue resistance under cyclic loading.
- Long Fatigue Life: Shot peened surface and proper heat treatment ensure millions of compression cycles without failure.
- Consistent Spring Force: Precision-wound coils deliver consistent compression force for stable toggle plate tension.
- Reliable Jaw Return: Maintains proper toggle plate contact and returns the moving jaw for continuous crushing operation.
- Load Tested: Each spring passes compression load testing to verify spring rate and working load before shipment.
- Custom Specifications: Custom wire diameter, coil count, free length and spring rate to match your specific jaw crusher model.
Compatible Machines
Fits PE Jaw Crusher (250x400 / 400x600 / 600x900); PE Jaw Crusher (750x1060 / 900x1200); PEX Jaw Crushers (Custom Fit Available).
