252100668 pin for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Part No.：252100668
Product Name：Hinge Pin
Applicable Model：XCMG ZL50G, ZL50GL Wheel Loader
Product Type：Loader working device hinge pin
Material：High strength alloy structural steel
Heat Treatment Process：Surface quenching treatment, tough core
Processing Technology：CNC turning, cylindrical grinding, magnetic particle crack inspection
Surface Finish：Precision ground and polished surface
Load Characteristic：Bear reciprocating impact load and alternating stress in shoveling & lifting cycle
Installation Method：Shaft hole interference / clearance fit assembly with retaining lock
Feature：High surface hardness, good core toughness, wear resistant, impact resistance, low friction, high dimensional precision
Weight：Consistent with original XCMG spare part
Application：Hinged rotary connection for working arm and bucket assembly of XCMG ZL50G / ZL50GL loader
Working Environment：Adapt to heavy load, impact, dusty and muddy mining & earthmoving construction sites

Applicable Models

Suitable for XCMG ZL50G and ZL50GL wheel loader, can directly replace original pin with the same part number.

Application Scenarios

Widely used in earthmoving, quarry, sand yard, road construction and mining heavy-duty working scenarios, serving as hinge pivot for working arm and bucket of XCMG ZL50G / ZL50GL loader.

• High-quality alloy structural steel raw material, combination of hard surface and tough core, resist bending fracture under repeated heavy impact load.
• Surface quenching and cylindrical grinding process, high surface hardness, greatly reduce abrasive wear between pin and bushing and extend service life.
• Precision dimensional control, good matching clearance with original bushing, effectively prevent seizure and stuck phenomenon during reciprocating rotation.
• Magnetic particle inspection for each finished pin, detect tiny surface cracks and avoid sudden pin fracture under heavy load on construction site.
• Strictly produced according to XCMG OEM drawings, outer diameter and length fully match ZL50G/ZL50GL, convenient for field disassembly and replacement.
• Optimized surface roughness treatment, reduce friction heat generation, protect mating bushing and lower overall maintenance cost of working device.

FAQ 

Q: What is the main function of 252100668 pin?
A: It acts as hinge pivot for XCMG ZL50G/ZL50GL loader working device, connects moving structural parts, enables rotational movement of boom and bucket, and transfers load during material shoveling and lifting.

Q: When do I need to replace this pin?
A: Replace promptly if the pin has serious surface wear, obvious bending deformation, deep pitting corrosion, crack or severe seizure damage. Even small cracks found during inspection must be replaced in time to prevent fracture during heavy shoveling operation.

Q: Can this pin install directly on ZL50G / ZL50GL loader?
A: Yes, manufactured strictly according to XCMG original drawing, outer diameter, length and locating structure fully match original assembly, no secondary cutting, grinding or welding modification required.

Q: What maintenance tips for the hinge pin?
A: Regularly check pin surface, lubrication status and locking device. Keep grease lubrication of pin-bushing pair, avoid long-time overload operation. Check wear volume periodically and replace grease on schedule to reduce abrasive wear.