Rexroth A10VG variable hydraulic pump for Schaeffer 450T S442 S222 wheel loader 070-390-071U 070-390-310U 070-390-304U 070-390-307U

The Rexroth A10VG series variable-displacement axial piston pump is a key hydraulic component utilized in the Schaeffer 450T, S442, and S222 series wheel loaders. This pump is renowned for its robust design, high power density, and precise control, making it ideally suited for the demanding cyclic operation of these heavy-duty construction machines.

Functioning as the main implement pump, the A10VG is responsible for supplying high-pressure hydraulic oil to the loader's working functions, primarily the lift and tilt cylinders. Its defining feature is the ability to vary its displacement (output flow) from zero to a maximum, typically controlled via a hydraulic servo piston. This variable-output capability is crucial for efficiency, as it matches pump flow to the immediate demands of the system, reducing energy loss, heat generation, and fuel consumption compared to fixed-displacement alternatives.

In the Schaeffer wheel loader application, the pump's control is often integrated with the machine's main hydraulic valve. A common setup uses a pressure compensator (e.g., HD type) combined with a load-sensing (LS) signal. This control strategy ensures the pump automatically adjusts to maintain a preset pressure differential above the highest load pressure in the circuit. The result is highly responsive and efficient operation, providing precise, controllable power for digging, lifting, and dumping cycles, regardless of the load.

The A10VG's swashplate design and hardened components ensure reliable performance under high continuous pressures (often up to 350 bar). Its construction allows for excellent contamination tolerance, a critical factor in the harsh, dusty environments where wheel loaders operate. For the Schaeff 450T, S442, and S222 models, the correct configuration—including displacement size, port orientation, and control type—is essential for optimal machine performance, ensuring strong breakout force, smooth handling, and overall productivity.

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Q1:What is the primary function of the Rexroth A10VG pump in Schaeffer wheel loaders?

A1: Its primary function is to act as the main implement pump, supplying high-pressure hydraulic oil to power the machine's working functions, specifically the lift and tilt cylinders for loader operations.

Q2:What must be carefully matched to ensure optimal performance in a specific loader model like the 450T?

A2: The specific pump configuration must be matched. This includes its exact displacement size, port orientation, and, most importantly, the correct type of control mechanism (e.g., HD pressure compensator) to ensure proper integration with the machine's hydraulic system for optimal breakout force and handling.

Q3:What is the price and delivery time of the Rexroth A10VG pump for Schaeffer wheel loader？

A3: The specific price and delivery time will depend on the equipment model or specific product model you provide.

Q4:How to purchase a Schaeffer wheel loader hydraulic pump?

A4:You can visit https://www.baolilaihydraulic.com/contact/ to contact us and purchase our products through various methods.