Rexroth A10VSO Valve Plate | A10VSO18, A10VSO45, A10VSO140 | Piston Pump Repair Parts

High-Precision Valve Plate for Rexroth A10VSO Series Piston Pumps

Product Overview: The valve plate is the critical interface within the Rexroth A10VSO variable displacement pump rotating group, directly determining the pump’s volumetric efficiency and service life. Our A10VSO series valve plates are manufactured from high-strength bi-metal or specially hardened steel, specifically engineered for Series 31/32/52 platforms. We support the entire range from the compact 18cc (A10VSO18) to the high-power 180cc (A10VSO180) models. Through rigorous grinding processes and strict flatness control, these plates ensure a perfect high-pressure oil film seal with the cylinder block, effectively resolving common repair issues such as low pressure, excessive internal leakage, and abnormal noise.

Key Technical Advantages:

• Superior Wear Resistance: Surface-nitrided or composite bronze layers provide ultra-low wear rates under high-pressure conditions of 280-350 Bar, significantly extending intervals between overhauls.

• Micron-Level Geometric Precision: Flatness is maintained within micron tolerances to ensure near-zero leakage at the sealing interface during high-speed rotation, maximizing overall pump efficiency.

• Comprehensive Displacement Matching: Perfectly fits A10VSO18, 28, 45, 63, 71, 100, 140, and 180 models. Porting and damping groove designs strictly adhere to original fluid dynamic standards.

• Vibration & Noise Suppression: Optimized triangular damping grooves buffer pressure shocks during piston changeovers, significantly reducing hydraulic ripples and operational noise.

• 100% Interchangeability: Manufactured strictly to OEM dimensions, allowing for direct “drop-in” replacement in genuine Rexroth pumps without the need for additional machining.

Detailed Models & Parameters:

• Compatible Series: Rexroth A10VSO Series 31, 32, 52.

• Applicable Displacements: A10VSO18, A10VSO28, A10VSO45, A10VSO63, A10VSO71, A10VSO100, A10VSO140, A10VSO180.

• Primary Materials: Bi-metal, Hardened Steel.

• Function: Oil distribution (suction/discharge), face sealing, pressure balancing.

• Rotation: Available in R (Clockwise) and L (Counter-clockwise) configurations.

• Target Applications: Hydraulic pump aftermarket repair, injection molding machine maintenance, construction machinery overhauls, and industrial HPU upgrades.