Quzhou Horbon Mining Parts Co., Ltd. is one of the leading manufacturers and suppliers of crusher main frame side plate in China. With abundant experience, we are committed to providing high quality customized service and OEM service to global clients. Welcome to buy advanced crusher main frame side plate made in China here from our factory. Contact us for quotation.
Why the Main Frame Side Plate Matters

The main frame is the single most expensive structural component of a jaw crusher - and it's not designed to be a wear surface. The side plate exists specifically to absorb impact and abrasion so the frame itself doesn't have to. Once a side plate wears through or shifts out of tolerance, the frame starts taking direct load and material contact, leading to cracking, deformation, and costly frame replacement instead of a simple plate swap.
Choosing the right side plate - correct alloy, correct thickness, correct fit - is a frame-protection decision, not just a wear-part purchase.
How the Side Plate Protects the Frame Assembly
Load distribution
A properly fitted plate spreads impact force across its surface rather than concentrating stress on frame edges or bolt holes.
Sealed protection
Correct fit keeps abrasive material from working its way behind the plate and grinding directly against the frame surface - a common cause of unseen frame wear.

| Item | Specification |
|---|---|
| Mounting position | Frame Assembly, between Front Frame and Rear End |
| Fitting hardware | Bushings, hexagon bolts/nuts, plain washers |
| Material | High manganese steel / Cr-Mo alloy steel / bimetal wear-resistant |
| Manufacturing | Heat treatment & quenching, precision casting, CNC machining |
| Reference example | PEV130 jaw crusher - left/right side plates, 1 each |
Exact dimensions differ by frame design and brand - send your part number or drawing for a matched fit.
Installation & Fit Notes
Check bushing and bolt-hole alignment against the frame before final tightening - misalignment here is the most common cause of premature plate loosening.
01
Torque bolts to the fastener's rated spec; under-tightening allows vibration-induced movement, over-tightening can crack cast plates.
02
Inspect the plate-to-frame contact surface for gaps - any visible gap is a path for material infiltration behind the plate.
03
Recommended inspection interval: check plate thickness and fit at scheduled maintenance stops, not only when performance drops.
04
Compatible Frame Types
- Metso jaw crusher frames
- Sandvik jaw crusher frames
- Terex jaw crusher frames
- Trio jaw crusher frames
- Custom frame designs (OEM part numbers accepted)
- Generic and domestic jaw crusher frame assemblies
Custom Production: From Frame Drawing to Finished Plate

With a drawing or part number
- Direct production matched to your frame's mounting geometry
- Laser-engraved logo marking available
- Custom alloy composition via in-house lab and melting furnace
- Export-grade packaging (fumigated wooden crates or steel frames) for anti-rust, transit-safe delivery
Without a drawing - reverse engineering
- Send a worn plate or frame measurements; our ~20-person design team reverse-engineers the fit
- First-draft 2D/3D drawings typically returned within 3 days
- Design adjustments available to correct chronic fit or wear issues on older frames

After-Sales Support
7×24 online technical response
Free replacement for confirmed quality issues
Installation guidance documents provided
Video and photo/text technical support





FAQ
Q: Do I need to replace both side plates at the same time?
A: Not necessarily, but if one side shows significant wear, check the other closely - uneven frame loading often wears both sides at different rates.
Q: Can you match a plate without a drawing?
A: Yes. Send a worn sample or key frame measurements and our engineering team will reverse-engineer the fit.
Q: What happens if the side plate is left too worn?
A: Material and impact load transfer directly to the frame, risking cracking or deformation - repairs at that stage cost significantly more than a plate replacement.
Q: Can side plates be customized in alloy or thickness?
A: Yes, via our in-house lab and melting furnace, based on your operating conditions (abrasion level, impact frequency, material hardness).
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