Rexroth A20VO Series Variable Displacement Pump with Skew Disc and Axial Plunger

The A20VLO series, a dual-pump variable displacement axial piston pump manufactured by Bosch Rexroth, represents a classic disc-type design optimized for open hydraulic circuits. Its signature "back-to-back" configuration integrates two independent rotary assemblies within a compact housing, delivering high power density and flexible power distribution. This design enables easy connection of additional gear pumps or a second working pump via a drive shaft, significantly simplifying the layout of complex hydraulic systems and providing an ideal modular power solution for multifunctional construction machinery.

Construction machinery: Provides core power for the walking and working devices of hydraulic excavators, wheeled loaders, truck cranes, and rollers.

Agricultural machinery: static hydraulic transmission systems and high-power output equipment for driving large tractors and combine harvesters.

Special-purpose vehicles: Hydraulic systems for specialized equipment including sanitation vehicles, tow trucks, and aerial work platforms.

The pump's output flow rate can be smoothly and continuously adjusted from zero to maximum, ensuring precise synchronization between the actuator's speed and operational commands for smooth, impact-free operation. Its integrated constant power control function is particularly critical, as it detects system load and automatically adjusts displacement to maintain the engine's operation within the most economical power range. This not only reduces fuel consumption but also effectively prevents engine stall due to overload, thereby protecting the entire power transmission system.

This pump series maintains the robustness characteristic of Rexroth products. Featuring high displacement options including 190,260, and 520 cc/r, it delivers a nominal pressure of up to 350 bar and peak pressure of 400 bar, designed to withstand extreme pressure impacts in heavy-duty applications such as excavation and lifting. Some high-displacement models come with built-in booster pumps, ensuring the main pump maintains excellent oil suction performance across various speeds and operating conditions. The A20VLO pump offers superior self-priming capability, allowing users to choose between tank pressurization or its integrated booster pump for oil supply, accommodating diverse tank configurations. Its control system adheres to Rexroth's mature industrial standards (e.g., RC 92500), ensuring compatibility with various pilot control valves and predictable regulation performance.

Elephant Fluid Power company boasts over a decade of manufacturing experience and is now the largest producer of hydraulic products in Northern China. We operate three specialized production lines equipped with advanced German manufacturing equipment. If you are interested in our products, please feel free to contact us for purchasing inquiries.

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