252109216 pin for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name: Bucket Tooth Locking Pin
Part No.: 252109216
Applicable Model: XCMG ZL50G, ZL50GL Wheel Loader
Matching Parts: 252109215 tooth sleeve, sleeve bucket teeth, 252109208 rock bucket
Material: Alloy structural steel
Process: Precision turning, quenching & tempering, surface hardening
Matching parts: Tooth sleeve, sleeve bucket teeth
Installation: Insert into pin hole for restraint
Working Condition: Ore quarrying, crushed stone transfer, hard rock compacted muck heavy-load operation
Inspection Items: Diameter measurement, straightness test, hardness test, non-destructive flaw detection

Applicable Scenarios

It is used together with the 252109208 welded sleeve-tooth rock bucket on XCMG ZL50G and ZL50GL loaders, widely deployed in quarries, stone crushing plants and rock excavation sites for limestone, granite, boulders and compacted hard soil. It is exclusive for this sleeve tooth set and cannot be used for earth bucket teeth or other rock tooth assemblies.

- OEM standard dimension, perfect fit for pin holes of 252109215 sleeve and sleeve teeth
- Alloy steel with heat treatment provides excellent shear and impact resistance against breakage
- Precision turning ensures uniform diameter and good straightness for smooth assembly
- Separate wear part; replace only the pin instead of tooth and sleeve together
- Gradient hardness structure: hard surface for wear resistance and tough core for shock load
- Compact and easy to stock, quick field replacement to reduce machine downtime
- Stable batch consistency, suitable for bulk spare stock in quarries

FAQ 

Q：Can this pin fit bucket teeth of other rock buckets?
A：It is not universal. Diameter, length and retaining structure are designed exclusively for 252109208 bucket assembly. Mismatch will cause jamming and locking failure.

Q：Can I keep using the pin if it is worn thin?
A：Reduced diameter creates excessive clearance. Loose tooth concentrates shock stress and leads to shear fracture. Failed pin causes tooth loss. Replace it promptly.

Q：What causes frequent pin shearing?
A：Main factors include worn out-of-round sleeve, excessive tooth play, heavy boulder impact, improper heat treatment and debris trapped in holes. Always inspect the sleeve together.

Q：What precautions should be taken during pin installation and removal?
A：Clean rock debris from holes first. Tap evenly and avoid bending the pin. Do not apply excessive force which deforms the sleeve pin hole. Confirm retaining function after installation.

Q：Can bent pins be straightened and reused?
A：Straightening causes internal metal damage and reduces impact resistance. Reuse is unsafe under quarry shock load. Replacement is recommended.

Q：Can the pin be repaired by welding to increase diameter or length?
A：Welding destroys the hardened layer. Weld zones have much lower strength and tend to fracture first. Weld repair is not allowed.