803013059 right boom cylinder for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Part Number：803013059
Product Name：Right Boom Cylinder
Applicable Model：XCMG ZL50G, ZL50GL Wheel Loader
Structure Type：Double-acting hydraulic cylinder
Cylinder Material：High precision seamless steel tube
Piston Rod Material：45# forged steel, hard chrome plated
Sealing Material：NBR+PU composite seal kit
Rated Working Pressure：16MPa
Test Pressure：20MPa
Working Temperature Range：-20℃~80℃
Surface Treatment：Spray anti-corrosion paint
Installation Mode：Hinge pin connection

Applicable Models

XCMG ZL50G, ZL50GL Wheel Loader

Application Scenarios

It is widely used in sand yard loading, quarry operation, earthwork construction, bulk cargo transfer and other heavy-load operation scenarios of 5-ton wheel loaders.

• Manufactured strictly per OEM drawings, mounting spacing, oil port and hinge dimensions fully match original parts. Plug-and-play with great interchangeability, no modification required, cutting down equipment downtime.
• Precisely honed cylinder barrel plus thick hard-chrome piston rod, high surface hardness and low roughness, resisting scratch from sand and dust, longer service life under continuous heavy-duty cycles.
• PU+NBR multi-stage combined seals, excellent pressure, wear and aging resistance. It maintains reliable sealing under high pressure, frequent stroke and temperature variation, reducing internal and external oil leakage.
• Optimized piston and internal flow design ensures uniform thrust and response speed for left & right cylinders, synchronous lifting, avoiding offset load, boom skew and stuck failure.
• Hinge end embedded with wear-resistant bushing to buffer instant impact during shoveling and unloading, easing metal collision and improving fatigue resistance for heavy cyclic impact conditions.
• Each cylinder undergoes hydraulic pressure and air tightness test before delivery, stable pressure holding, low failure rate and suitable for long continuous operation.

FAQ 

Q1: Is this boom cylinder suitable for other loader models?
A1: Part 803013059 is specially for XCMG ZL50G / ZL50GL, not universal. Stroke, thrust and installation size differ among models. Confirm part number before ordering to avoid mismatch.

Q2: What are the common causes of oil leakage of the boom cylinder?
A2: Seal aging, piston rod scratch, cylinder deformation, loose oil port connector or seal damage by impurities. Replace seal kit or cylinder assembly according to damage.

Q3: What is the correct installation procedure for the right boom cylinder?
A3: Clean hinge holes, pins and pipelines first. Align lugs, install and lock pins, connect oil pipes. Operate boom repeatedly to exhaust air and check leakage before operation.

Q4: What regular maintenance items should be carried out daily?
A4: Check oil seepage at seals and ports; inspect piston rod for scratch or rust; grease pins and bushings regularly; keep rod surface clean.

Q5: The boom lifts slowly after replacing the new cylinder, what should I check step by step?
A5: Check trapped air first, then system pressure, hydraulic oil cleanliness, filter blockage and multi-way valve working condition.

Q6: Can I only replace the sealing kit instead of the whole cylinder when oil leakage occurs?
A6: Yes if only seals age with intact barrel and rod. If rod or barrel is severely scratched, seal replacement alone cannot stop leakage, replace the whole assembly.