pipe of hydraulic oil radiator for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name：Hydraulic Oil Cooler Pipeline Assembly
Applicable Model：XCMG ZL50G, ZL50GL Wheel Loader
Pipeline Composition：Cold drawn seamless steel hard pipe + steel wire braided rubber hose
Nominal Working Pressure：4MPa
Burst Pressure：12MPa
Working Medium：L-HM46 anti-wear hydraulic oil
Operating Temperature：-30℃ ~ +100℃
Pipe Connection Type：Flange connection + quick connector
Surface Treatment of Steel Pipe：Sand blasting + anti-rust paint coating
Sealing Material：Nitrile rubber sealing gasket
Installation Method：Fixed by pipe clamp, direct replacement
Feature：Vibration absorption, low flow resistance, oil corrosion resistance, anti-fatigue cracking, reliable sealing

Applicable Scenarios

Open-pit mining, aggregate stockyard loading, earthwork road construction, port bulk cargo handling, quarry mining, bulk material transfer, municipal engineering, river dredging project.

- OEM original pipeline routing and interface size, fully matches ZL50G/ZL50GL loader mounting position and connector, bolt-on installation without modification, reduce replacement time.
- Combined structure of steel hard pipe and flexible rubber hose, rigid pipe keeps pipeline shape, hose absorbs frame vibration, reduce fatigue cracking risk at welding positions.
- Smooth inner pipe wall, low flow resistance, reduce cooling circuit back pressure, guarantee high flow circulation and improve oil cooling efficiency.
- Multi-layer steel wire braided hose and high-quality nitrile rubber seal, good resistance to hydraulic oil corrosion and pressure pulse, effectively prevent oil leakage.
- Strict welding and surface anti-corrosion treatment for steel pipes, strong rust resistance, adapt to dusty, humid construction site environment, extend pipeline service life.
- Complete assembly with pipe clamps, gaskets and joints, one-piece delivery, convenient for on-site maintenance and rapid replacement.
- Reasonable pipeline layout without sharp bends, reduce air accumulation inside the loop, avoid local overheating and cavitation of hydraulic system.

FAQ 

Q1: Is this hydraulic oil cooler pipeline assembly compatible with both ZL50G and ZL50GL?
A1: Yes. This pipeline assembly is customized for XCMG ZL50G and ZL50GL wheel loaders. Pipe layout, flange size and connector specifications are universal for the two models.

Q2: What are typical symptoms that the hydraulic oil cooler pipeline needs to be replaced?
A2: Oil leakage at welding seam or hose joint, hose bulging, cracks and oil seepage, hard pipe serious corrosion or deformation, pipeline blockage which leads to continuous high hydraulic oil temperature.

Q3: What routine maintenance should be carried out for hydraulic oil cooler pipeline?
A3: Regularly inspect pipeline surface for cracks, swelling and oil leakage; check tightness of pipe clamps and flange bolts; avoid external collision and extrusion of pipeline; keep pipeline surface clean.

Q4: Is pressure test and leakage inspection carried out before delivery?
A4: Every pipeline assembly will pass hydraulic pressure test and sealing leakage inspection before leaving factory to ensure no leakage under rated working pressure.

Q5: What precautions should be taken during pipeline installation?
A5: Clean pipeline inner cavity and radiator oil port before installation; replace old sealing gaskets; arrange pipeline according to original route, avoid excessive tension or distortion of hose; after installation, test hydraulic system for leakage under no-load condition.

Q6: What will cause high hydraulic oil temperature after replacing the oil cooler pipeline?
A6: It may be caused by pipeline blockage, excessively small pipe diameter, sharp bending of hose, air trapped inside cooling loop, or failure of hydraulic oil radiator itself.

Q7: Can high-pressure water gun directly wash the hydraulic oil pipeline?
A7: Not recommended. High-pressure water may impact the hose surface and sealing joints, accelerate aging of rubber parts. Clean dust with compressed air or wet rag.