The A10VSO10DR Series is a high-performance axial piston variable pump engineered for hydrostatic drives in open-circuit hydraulic systems. Featuring a geometric displacement of 10 cm³/rev, this pump offers infinitely variable flow proportional to both drive speed and swashplate orientation.
Equipped with the advanced DR pressure controller, the pump continuously monitors the circuit demand. When the system reaches the preset pressure cut-off point, the pump smoothly destokes (reduces displacement) to provide only the exact volume of hydraulic fluid required by the actuators. This significantly reduces energy waste, controls heat generation, and extends the operational lifespan of the entire system.
Core Technical Features & Advantages
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Energy-Efficient DR Controller: The integrated pressure valve acts as a safety and efficiency mechanism, ensuring the pump operates at minimum flow once system pressure targets are met.
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Superior Suction Characteristics: Optimized fluid pathways minimize cavitation risks and allow high permissible drive speeds even under demanding inlet conditions.
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Low Noise Radiation: The structural engineering of the housing and port plate drastically reduces airborne noise, creating a safer and more compliant industrial work environment.
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Extended Service Life: Robust inner rotary groups combined with a stable bearing arrangement guarantee high functional reliability under continuous cyclical loads or unfavorable operating conditions.
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Dual Case Drain Ports: Dual leakage ports (L, L1) facilitate flexible installation positions and superior cooling flow through the pump housing.
Primary Applications
As a heavy-duty industrial workhorse, this 10cc variable piston pump is widely used across multiple B2B manufacturing and machine-tool sectors:
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Industrial Hydraulic Power Units (HPUs)
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Factory Automation & Conveyor Drives
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Metal Forming & Stamping Presses
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Plastic Processing & Injection Molding Machinery
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Medium-Duty Mobile Working Hydraulics
Technical Specifications Table
| Parameter | Value / Specification |
| Model Code | A10VSO10DR / Series 52 |
| Displacement ($V_{g\ max}$) | 10 cm³/rev (0.61 in³/rev) |
| Circuit Type | Open Circuit |
| Nominal Pressure ($p_{nom}$) | 250 bar (3,600 psi) |
| Maximum Pressure ($p_{max}$) | 315 bar (4,550 psi) |
| Max. Rotational Speed (at $V_{g\ max}$) | 3,600 RPM |
| Maximum Flow (at Nominal Speed) | 37 L/min (9.7 GPM) |
| Max. Drive Torque (at $\Delta p$ = 250 bar) | 42 Nm (31 lb-ft) |
| Sealing Material | FKM (Viton) Standard |
| Mounting Flange & Ports | SAE Standard Compliant |
