Quzhou Horbon Mining Parts Co., Ltd. is one of the leading manufacturers and suppliers of crusher rear frame 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 rear frame made in China here from our factory. Contact us for quotation.
Crusher Rear Frame Replacement | Precision-Fit Structural Part – Horbon
When Your Jaw Crusher's Rear Frame Needs Replacing
A cracked, worn, or misaligned rear frame is one of the most common reasons for jaw crusher frame failure. Since the rear frame carries the mounting points for the pitman bearing housings, guide pieces, and side plate bolts, even minor deformation here throws off the entire crushing chamber alignment - leading to uneven jaw plate wear, bearing overheating, and vibration.
Horbon manufactures direct-replacement crusher rear frames, machined and cast to restore your crusher's original geometry and load path - not just a similar-looking part, but one that bolts in and holds tolerance under full crushing load.
Signs You Need a New Rear Frame
Visible cracking near bolt holes or bushing seats
Uneven gap between side plates and rear frame after tightening
Persistent pitman bearing wear despite bearing replacement
Frame flex or noise under load that wasn't present before
Engineering Behind Every Rear Frame We Cast
Rather than copying dimensions blindly, our team cross-references your part number or physical sample against the full frame assembly (bushings, guide pieces, plain washers, mounting bolts) to confirm fitment before production begins:
Casting material
high manganese steel or chrome-moly alloy steel, matched to your ore hardness and impact conditions
Heat treatment
quenching process to resist frame fatigue under repeated crushing cycles
Machining
CNC-finished bolt patterns and bushing bores for correct alignment with the front frame and pitman assembly - misaligned bore centers are the #1 cause of rear frame comebacks in the industry
Inspection before shipment
dimensional check against your original frame's bolt spacing and bore diameters, hardness verification, internal flaw scanning
No Drawing? We Can Still Match It
Send us the damaged rear frame, a few key measurements, or your crusher's model and part number. Our 20-person technical department reverse-engineers the geometry and issues a 2D/3D drawing for your confirmation, typically within 3 days - before we cut any steel.
We also adjust the design itself where it makes sense: thicker ribbing in high-stress zones, revised bushing seat tolerances, or upgraded alloy grade if your current rear frame keeps failing prematurely under specific site conditions.
Fits Jaw Crushers From
Metso
Sandvik
Terex
Trio
common domestic models, and OEM/custom frame designs
Ordering Basics
| MOQ | 5 pieces |
| Lead time | 15–30 days |
| Stock | Regularly held in inventory |
| Trade terms | FOB / CIF |
| Ports | Shanghai, Ningbo |
About Horbon
Quzhou Horbon Mining Parts Co., Ltd. is a manufacturing plant (not a trading company) based in Quzhou, Zhejiang, producing structural and wear parts for crushing equipment - gears, bushings, shafts, rotor assemblies, and frame components including rear frames. We've supplied crusher parts to mining operations across Southeast Asia, the Middle East, Africa, Europe, and the Americas.
Have a cracked rear frame or just a part number? Send us either one, and we'll tell you if it's a direct match or if reverse engineering is needed - with a quote within 24 hours.
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