252904790 air pipe for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name: Air Hose for Brake System
Part No.: 252904790
Applicable Model: XCMG ZL50G, ZL50GL Wheel Loader
Matching System: Pneumatic brake system
Material: Air-tight rubber + fiber reinforcement + wear-resistant outer rubber + crimped metal fittings
Matching parts: Air tank, brake booster, pneumatic fittings
Installation: Connect pneumatic components and fix with hose clamps
Working Condition: Quarry mining, aggregate yard, heavy-load earthwork
Inspection Items: Air tightness test, bending fatigue test, pressure resistance test, visual inspection

Applicable Scenarios

It is used in the air brake circuit of XCMG ZL50G and ZL50GL wheel loader, widely used in quarry, aggregate yard and construction sites. It connects the air tank and brake booster to transfer compressed air and absorb vibration displacement for stable air supply.

- OEM specification, length and bending radius match original hose. No cutting required, saving installation time and avoiding leakage risk
- Multi-layer composite structure with excellent air tightness and stable pressure resistance, resisting deformation under working air pressure
- Weather-resistant outer rubber resists gravel scratch and UV aging, suitable for long-term outdoor quarry operation
- Uniform crimped fittings resist pulling and twisting, preventing separation and slow leakage under repeated vibration
- Moderate flexibility to absorb relative movement between frame and pneumatic parts and avoid rigid pipe fracture
- Compatible with air tank, booster pump and brake hose of the same model for convenient spare parts management
- Batch air tightness inspection eliminates slow-leakage products, reducing frequent compressor cycling and pressure drop

FAQ 

Q：Can this air hose replace other pneumatic hoses on the machine?
A：Not recommended. Length and layout differ for different positions. Improper fit causes tension and cracking, which is hazardous for braking.

Q：Can hardened whitened air hose stay in service?
A：Hardened rubber loses elasticity and cracks easily under bending. Replace it immediately even if it does not leak yet.

Q：What causes air leakage at fittings?
A：Common causes: worn seal, twisted hose during installation or incomplete insertion. Keep hose natural without twisting.

Q：How to test leakage after installation?
A：Fill to working pressure and apply soapy water on hose and fittings. No bubble indicates qualified.

Q：What to check on receiving goods?
A：Verify part number, check cuts and scratches, inspect crimp quality and test flexibility.

Q：What is the recommended inspection cycle?
A：Inspect every year in harsh quarry conditions. Replace immediately if hardened, cracked or bulging.