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Rexroth A8VO Axial Piston Variable Double Pump A8VO55 A8VO80 A8VO107 A8VO140 A8VO200 Series Hydraulic Pump Spare Parts

The Swashplate Mechanism: Intelligence in Motion

The adjustable swashplate is the defining feature of the Rexroth A8VO series – which includes the A8VO55, A8VO80, A8VO107, A8VO140, and A8VO200. This clever design turns prime‑mover torque into precisely metered hydraulic power. Here’s how it works:

• Kinematic Precision – Multiple pistons are arranged in a circular pattern around the central shaft. As the shaft turns, each piston slides back and forth inside its cylinder, and the travel distance is governed by the tilt angle of the swashplate they run against.

• The Angle of Efficiency – The swashplate angle is not fixed; it changes on the fly. A larger tilt gives a longer piston stroke, boosting displacement and flow output. A smaller tilt does the opposite, reducing both stroke and flow.

• The Ultimate Benefit – This real‑time adjustment means the pump supplies only the flow the system actually needs at that instant. Unlike fixed‑displacement units that waste energy through constant full flow and bypass heating, the A8VO family cuts energy waste dramatically, lowering operating costs across all models.

Control Versatility: A Pump Tailored to Your Application

The intelligence of every A8VO pump – from the compact A8VO55 to the powerful A8VO200 – is delivered through a suite of optional control strategies. These automatically manage the swashplate angle, making the pump a responsive partner in your circuit.

• Pressure Control (LR, LRDS) – The go‑to for energy saving. In standby, the pump runs at near‑zero displacement; it only increases flow to build or maintain a preset pressure. This “low‑pressure standby” drastically reduces heat and fuel use during clamping, holding, or positioning – ideal for presses and machine tools.

• Flow Control (LU, LUE) – For processes that demand steady speed, this option keeps output flow nearly constant regardless of pressure changes (within limits). It’s essential for conveyor drives, mixers, and feeder systems where consistent actuator speed is critical to product quality.

• Power Control (LRG, LRD) – Protects the engine or motor by limiting the product of pressure and flow (horsepower) to a safe ceiling. This is vital for mobile equipment like excavators and loaders, where engine power is limited and overloads must be avoided.

Industry‑Proven Applications: Powering Critical Machinery

The entire A8VO range – A8VO55, A8VO80, A8VO107, A8VO140, and A8VO200 – is trusted in demanding sectors where performance and reliability are mandatory.

• Mobile & Off‑Highway Equipment – These pumps dominate construction and agriculture. They supply intelligent, high‑power flow for the main hydraulic systems of excavators, wheel loaders, telescopic cranes, and drilling rigs. The power‑control option guards diesel engines against stall, while load‑sensing versions improve fuel economy.

• Industrial Manufacturing & Automation – They are a cornerstone of precision production, driving injection moulding machines, metal stamping presses, and high‑cycle test benches. The repeatable, accurate control ensures consistent part quality and reliable process cycles.

• Forestry & Heavy Material Handling – Built to withstand shock loads, these pumps operate reliably in harvesters, forwarders, and port container handlers. They handle sudden load spikes and contaminated oil without faltering – a testament to their rugged design and long service life.

Q1: How does the “double pump” (DA) configuration work?

A1: The A8VO can be specified as a double pump (DA), where a second pump unit (often a gear pump) is flange-mounted to the main A8VO107. This creates a compact, dual-flow source from a single input shaft—perfect for powering separate circuits, such as a main implement circuit and a pilot/steering circuit, from one engine or motor.

Q2:Can the control parameters be adjusted in the field?

A2:Yes, for mechanical-hydraulic controls (like pressure or power control), adjustment screws with locknuts are provided for setting pressure limits, flow, or power curves. Adjustments should only be made by qualified personnel​ with the correct pressure gauges and system knowledge, as incorrect settings can lead to system damage or hazardous operation.

Q3:How to purchase an A8VO107 hydraulic pump?

A3:You can click on the right sidebar or the contact information in the top bar to contact us to purchase. You can do so via email, form, WeChat, WhatsApp, or other methods.

Q4:What is the price and delivery time of the A8VO107 hydraulic pump?

A4:The specific price and delivery time will be provided based on the specific model you provide.