252100564 lower plate for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Part Number：252100564
Product Name：Lower Plate
Applicable Model：XCMG ZL50G, ZL50GL Wheel Loader
Material：Q355 high-strength carbon steel plate, excellent low-temperature toughness
Plate Thickness：OEM standard thickness, uniform thickness, no thinning after bending
Processing Technology：CNC cutting, bending, stress relief annealing, deburring
Surface Treatment：Anti-rust primer + finish paint, double-layer coating for enhanced corrosion resistance
Installation Method：Bolt fastening cooperation, matched with standard fasteners
Load Feature：Bearing static load and alternating vibration load, resistant to periodic shock impact
Working Environment：-20℃ ~ 60℃, dust and splash resistant, suitable for all-season outdoor construction
Inspection Items：Dimension inspection, flatness inspection, welding seam inspection, thickness inspection, appearance inspection

Application Scenarios

It is widely used for the bottom supporting and fixing of hydraulic multi-way valves, valve blocks and auxiliary hydraulic accessories of wheel loaders, suitable for earthwork, quarry and sand loading construction sites.

• Manufactured according to OEM specifications, hole spacing and outline size fully match the original assembly, install directly without cutting or welding modification, saving replacement time.
• Q355 steel plate with high rigidity and excellent toughness, not easy to deform under long-term vibration impact and component weight load.
• Stress relief annealing treatment reduces cracking risk caused by residual stress under alternating load, improving long-term reliability.
• Reasonable hole position and avoidance groove layout, convenient for assembly and later inspection and maintenance, easy to align during installation.
• Stable welding quality, weld seams inspected one by one, high structural reliability, no welding defects such as slag inclusion.
• Double-layer anti-rust coating, strong adhesion, good anti-corrosion effect in muddy and dusty environment, slow aging rate.

FAQ 

Q1: Can this lower plate bear hydraulic components heavier than the designed load?
A1: No. Its structural strength and design bearing capacity are fixed. Overload will cause bending deformation or even fracture, which brings hidden dangers to the hydraulic system, and may trigger unexpected downtime of the loader during heavy-load operation.

Q2: What faults will occur if the lower plate is deformed or cracked?
A2: Deformation or cracks will make the hydraulic valve lose stable bottom support, cause pipeline deflection and abnormal pulling force, easily trigger oil leakage and component damage during heavy-load operation, and affect the normal control of the working hydraulic circuit.

Q3: What preparations should be done before installing the new lower plate?
A3: Clean the mounting surface, remove mud and rust; align the hole position accurately, tighten the bolts evenly step by step to avoid uneven stress and local plate bending; check whether the sealing gaskets of the hydraulic valve oil ports are intact before assembly.

Q4: Can cracked lower plate be welded for reuse?
A4: It is not recommended. Welding will generate new thermal stress, and secondary cracking is easy under vibration impact, it is safer to replace a new plate to avoid sudden failure.

Q5: Is there a fixed installation direction for this lower plate?
A5: This lower plate has a specific direction for load bearing and avoiding interference. Compare it with the old part before installation to prevent wrong assembly and uneven force distribution, and avoid collision between the plate and surrounding structural parts.

Q6: Can I reuse the original bolts when replacing the lower plate?
A6: If the bolts are intact, without thread damage and fatigue deformation, they can be reused; replace the bolts if threads are pulled or corroded seriously, to prevent bolt fracture under vibration load.