Hydraulic Power Unit and Pump Configuration

Hydraulic Power Unit and Pump Configuration

The pallet truck integrates an AC pump or BF pump as standard hydraulic power options. Both pump types feature a one-piece cast housing design that eliminates external seals and potential leak paths. This hydraulic unit maintains a working pressure rating of 16MPa and delivers a lifting speed of 0.12m/s under full load. The pump housing undergoes a 48-hour continuous run-in test before assembly. The entire hydraulic system carries a 36-month warranty period covering material defects and workmanship. The oil filler port is positioned at the top of the pump casing, providing easy access for fluid top-ups without disassembling any components.

Lubrication System and Maintenance Points

Eight grease nipples are installed at critical pivot points including the handle hinge, lift cylinder mount, linkage arms, and wheel axle brackets. These lubrication points enable regular greasing using standard manual or pneumatic grease guns. Each nipple accepts NLGI grade 2 lithium-based grease, with recommended service intervals of 50 operating hours for standard applications and 25 hours for dusty or wet environments. The strategically placed nipples allow maintenance personnel to lubricate all moving joints without removing covers or panels. This design significantly extends the service life of bushings, pins, and bearings while maintaining consistent steering and lifting performance.

Fork Arm Design and Structural Integrity

The curved fork arms feature a streamlined contour that distributes load stress evenly across the entire fork length. This arc-shaped geometry prevents permanent deformation under rated capacity conditions, maintaining fork tip deflection within 3mm at 2500kg load. Each fork arm incorporates an arrow-shaped tip that provides visual load positioning guidance for operators, improving engagement accuracy with pallets. The fork arms are directly integrated with the rear wheel frame bearing housings through a single-piece casting process, eliminating welded joints that could create stress concentration points. This unified structure improves torsional rigidity by 22% compared to traditional bolt-on or welded fork assemblies.

Reinforcement Rib Specifications

A 900mm continuous reinforcement rib runs along the underside of each fork arm, increasing the section modulus at the critical bending zone. The rib thickness measures 6mm with a height of 45mm, adding 18% more steel mass to the fork structure. This enhancement raises the dynamic load capacity to 3000kg while maintaining the rated static capacity of 2500kg. The rib is integrated into the casting process, ensuring consistent material grain structure and eliminating weld-induced residual stress. Fork deflection tests show the reinforced design maintains dimensional stability after 200,000 full-load lift cycles.

Technical Specifications Summary

Durability Testing and Quality Assurance

The fork-to-bearing housing integrated structure undergoes magnetic particle inspection to detect surface cracks and subsurface discontinuities. Each unit is subjected to a 125% rated load static test for 15 minutes, with permanent deformation measured using laser alignment equipment. The hydraulic pump assembly is pressure-tested at 24 MPa for 5 minutes to verify seal integrity. Reinforced ribs are gauge-checked for thickness tolerance within ±0.3mm. Maintenance access points including the oil filler and grease nipples are positioned for single-person serviceability, requiring no special tools for routine lubrication or fluid checks. The 36-month warranty covers the pump, cylinder, and cast fork structure against manufacturing defects, providing operators with verifiable long-term reliability metrics.