803044355 oriented ring for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Product Name: Guide Strip
Part No.: 803044355
Applicable Model: XCMG ZL50G, ZL50GL Wheel Loader
Material: Wear-resistant self-lubricating composite material
Function: Radial guidance for piston and piston rod, bearing lateral load, preventing metal friction
Installation Position: Grooves of piston and guide sleeve on boom cylinder and bucket cylinder
Medium: Construction machinery hydraulic oil
Working Temperature: -30℃ ~ +120℃
Inspection Items: Dimension tolerance inspection, visual inspection, compression deformation test
Matching Parts: Seal ring, dust seal, O-ring, support ring

Applicable Scenarios

It is installed inside boom cylinder and bucket cylinder of loader to bear lateral impact force during shoveling and unloading. Widely used in high-frequency shoveling scenarios with heavy impact load, such as sand yards, mines, earthwork construction and cargo yards.

• Original specification with precise tolerance, easy to fit into cylinder groove
• Self-lubricating feature with low friction, reduce scratch risk of cylinder and piston rod
• Good extrusion resistance and toughness, withstand alternating lateral load, not easy to break
• Stable oil and temperature resistance, not easy to swell or age in hydraulic oil
• Moderate hardness, act as isolation layer without wearing metal cylinder parts
• Ideal matching part for cylinder maintenance, reduce repeated disassembly
• Dedicated specification, good interchangeability, easy stock and shorten repair time

FAQ 

Q：What symptoms will occur if the guide strip is worn?
A：Worn guide strip loses guiding support, the piston swings eccentrically, which scratches the piston rod and cylinder wall, accompanied by jitter, abnormal noise, increased internal leakage and weak lifting.

Q：Can guide strip and support ring replace each other?
A：They are not interchangeable. They differ in cross-section, load design and groove size. Mixing them will cause jamming and insufficient support and accelerate cylinder damage.

Q：What should be paid attention to when installing the guide strip?
A：Remove burrs and dirt in grooves, avoid sharp edges cutting the strip. Some materials can be preheated with warm water for flexibility. Forcible prying is forbidden.

Q：What are the main reasons for guide strip fracture?
A：Long-term overloaded eccentric impact, hard impurities in hydraulic oil, improper assembly clearance and material aging embrittlement are common causes.

Q：Can the guide strip be replaced separately or with all seals?
A：Separate replacement is allowed. It is recommended to replace all seals and dust seals together during overhaul to avoid secondary disassembly.

Q：What are the storage requirements for spare guide strips?
A：Store in cool, ventilated and dark place away from heat source. Do not squeeze or bend to avoid permanent deformation, keep away from strong acid and alkali.