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As a premier manufacturer and direct supplier of heavy-duty hydraulic components, we present this high-pressure variable displacement axial piston pump designed for demanding industrial applications. Engineered for precision and longevity, it serves as the beating heart of complex machinery, ensuring seamless fluid power transmission.
Engineered specifically for open-loop hydraulic circuits
Robust swashplate design guarantees continuous, reliable operation
Direct sourcing from the manufacturer provides significant procurement advantages
Fully available for high-volume orders and customized technical configurations
Step into a realm of uncompromising power and precision with our premium variable displacement axial piston pump. From the moment you handle the heavy, cast-iron housing, the exceptional craftsmanship is palpable. The cool, dense metallic exterior speaks volumes about its structural integrity, meticulously designed to withstand the relentless vibrations and high-pressure surges inherent in heavy industrial environments. When integrated into your machinery, the operational sound is a steady, reassuring hum—a stark contrast to the erratic whining often associated with lesser components. This distinct auditory signature is the direct result of precisely machined internal clearances and a dynamically balanced swashplate mechanism that minimizes fluid turbulence and mechanical friction.
Beyond its robust physical presence, this pump is engineered to fundamentally revolutionize your operational efficiency. By dynamically adjusting the fluid output to match the exact demands of the system, it eliminates wasted energy and significantly reduces the thermal load on your hydraulic fluid. You will notice a distinct drop in system operating temperatures, which in turn preserves the sharp, clean scent of fresh hydraulic oil rather than the acrid odor of degraded, overheated fluid. This intelligent energy management not only lowers your daily operational costs but also extends the lifecycle of every connected valve, cylinder, and seal in the circuit. Whether driving the massive arms of an earthmoving machine or applying precise force in a metallurgical press, this pump ensures that your equipment responds with immediate, smooth, and predictable power, ultimately maximizing your facility's uptime and productivity.
Selecting the correct hydraulic component requires precise and transparent technical data. The following table details the exact engineering specifications of our variable displacement axial piston pump, ensuring seamless integration into your existing systems and guaranteeing compatibility with your specific operational parameters.
| Product Type | Variable Displacement Axial Piston Pump |
| Design | Swashplate design |
| Circuit | Open loop circuit |
| Nominal Pressure | 280 bar |
| Maximum/Peak Pressure | 350 bar |
| Displacement | 10, 18, 28, 45, 71, 100, 140 cm³/rev |
| Control Devices | DR, DRG, DFR, DFR1, DFLR, ED, FHD, EF, etc. |
| Mounting Flange | Complies with SAE J744 / ISO 3019-1 standards |
| Ports | Complies with SAE J518 standard (Dual drain port design) |
| Drive Bearing | Robust and compact, withstands axial and radial loads |
| Through Drive | Supports 100% through drive, allows tandem coupling of gear or piston pumps of the same size |
| Fluid | Mineral oil and eco-friendly hydraulic fluids |
Our variable displacement piston pump is engineered with advanced features that directly translate into tangible operational benefits for your heavy machinery. Each design element is meticulously crafted to address the most demanding challenges in fluid power transmission.
Exceptional Power Density: The compact footprint belies an immense power output, allowing you to design smaller, more efficient machine envelopes without sacrificing lifting or pressing capabilities.
Whisper-Quiet Operation: Advanced internal porting and a rigid housing design significantly dampen pressure pulsations, resulting in a quieter workspace and reducing operator fatigue.
Rapid Response Times: The lightweight yet highly durable swashplate reacts instantaneously to load changes, ensuring your equipment maintains precise speed and force control under varying conditions.
Thermal Efficiency: Optimized internal flow paths reduce fluid friction, preventing localized hot spots and maintaining the integrity of the hydraulic oil over extended operating shifts.
Versatile Fluid Compatibility: Designed to perform flawlessly with standard mineral oils as well as modern, eco-friendly hydraulic fluids, supporting your environmental compliance goals.
Achieving maximum productivity requires components that do not falter under immense pressure. This pump is built to deliver relentless power while maintaining exceptional efficiency across its entire operating range.
High-Pressure Capability: Sustains a nominal working pressure of 280 bar and handles peak surges up to 350 bar, providing the necessary muscle for heavy-duty lifting, pressing, and digging tasks.
Superior Power-to-Weight Ratio: Delivers massive hydraulic force without adding unnecessary bulk to your machinery, optimizing the overall weight distribution of mobile equipment.
Excellent Suction Characteristics: Engineered to draw fluid efficiently even under less-than-ideal inlet conditions, preventing cavitation and ensuring a steady, reliable flow.
Proportional Output: The flow rate is strictly proportional to the drive speed and displacement, granting operators absolute, predictable control over actuator movements.
No two industrial applications are identical. That is why this pump offers an extensive array of control mechanisms, allowing you to tailor the hydraulic output precisely to your system's unique demands.
Stepless Adjustment: The swashplate angle can be infinitely varied, providing smooth, stepless control over the displacement and flow rate.
Comprehensive Controller Range: Choose from a wide selection of controllers including DR (Constant Pressure), DFR (Pressure and Flow), and DFLR (Pressure, Flow, and Power), ensuring perfect synchronization with your system logic.
Energy Conservation: By only delivering the exact flow required by the actuators, these intelligent control systems drastically cut down on parasitic energy losses and reduce fuel or electricity consumption.
Rapid Actuation: Short control response times mean the pump adapts to sudden load changes in milliseconds, preventing pressure drops and maintaining machine stability.
Space is often at a premium in modern machinery design. This pump's architecture is specifically developed to simplify integration and reduce the overall footprint of your hydraulic power unit.
Compact Swashplate Design: The axial piston arrangement minimizes the physical dimensions of the pump, making it easier to install in tight engine compartments or crowded factory floors.
Standardized Mounting: Equipped with industry-standard SAE and ISO mounting flanges, ensuring drop-in compatibility with a vast array of global equipment brands.
100% Through-Shaft Drive: This critical feature allows you to mount additional pumps—such as a secondary piston pump or a gear pump—directly to the rear, creating a powerful tandem setup driven by a single motor.
Simplified Pipework: The logical arrangement of suction and pressure ports reduces the need for complex, winding hoses, lowering the risk of leaks and simplifying maintenance access.
Downtime is the absolute enemy of profitability. Every component within this pump is selected and machined to withstand the harshest industrial realities, ensuring years of uninterrupted service.
Optimized Dual Drain Ports: The strategic placement of two drain ports effectively manages internal casing pressure, preventing seal blowout and enhancing the stability of the rotating group.
Heavy-Duty Bearings: The robust drive shaft bearings are engineered to absorb both high axial thrust and severe radial loads, eliminating premature wear even when driven by heavy pulleys or gears.
Wear-Resistant Internals: The valve plate and cylinder block are crafted from specialized alloys and subjected to advanced surface treatments, resisting the abrasive effects of micro-contaminants.
Vibration Dampening: The solid cast housing absorbs mechanical vibrations, protecting sensitive surrounding electronics and contributing to a longer overall lifespan for the entire hydraulic circuit.
Versatility is a hallmark of superior engineering. Whether your operations are mobile or stationary, this pump series adapts to deliver uncompromising performance across diverse sectors.
Mobile Machinery (A10VO Series): Perfectly tuned for the dynamic environments of construction and agriculture. It provides the responsive power needed for excavators, wheel loaders, mobile cranes, and heavy-duty drilling rigs.
Industrial Equipment (A10VSO Series): Designed for the rigorous, continuous duty cycles of factory floors. It excels in plastic injection molding machines, heavy hydraulic presses, metallurgical rolling mills, and automated forging equipment.
Harsh Environment Tolerance: Built to operate reliably in extreme temperature variations and dust-heavy environments, maintaining constant pressure or flow regardless of external conditions.
Customizable Performance: Whether your process requires strict constant pressure holding, precise flow metering, or complex power limiting, the adaptable nature of this pump meets the most stringent operational criteria.
Hydraulic systems play a critical role in industrial performance, and maintaining the reliability of key components such as the A10VO and A10VSO pumps is essential. Based on common field observations, we have compiled targeted solutions to frequent operational challenges:
Insufficient or No Oil Output: This may stem from low tank levels, leaks in the inlet line, or clogged filters restricting suction. It can also result from internal leakage due to worn seals or damage to the oil distribution plate. Additionally, an improperly adjusted swashplate angle or reversed motor rotation may impair output. We recommend verifying fluid levels, inspecting inlet integrity, assessing seal and plate condition, and confirming correct motor phasing and swashplate settings.
Non-zero Output in Neutral Position: If the pump continues to discharge oil in the neutral state, the issue may lie with controller misalignment or failure, or wear in the variable mechanism’s ear shaft. Insufficient return force can also prevent full de-stroking. Corrective actions include recalibrating the controller, securing or replacing faulty parts, and inspecting the ear shaft for wear requiring repair.
Excessive Vibration and Noise: These symptoms often point to misalignment between the pump and drive motor or degraded bearings. Wear in the variable head bearing—commonly caused by poor lubrication or contaminated oil—can also contribute. Ensuring precise shaft alignment, evaluating bearing health, and maintaining clean, properly conditioned oil are effective measures to mitigate these issues.
Overheating of the Pump: Heat buildup may arise from excessive mechanical or fluid friction, often due to inadequate clearances or prolonged dry running. Blocked filters can increase backpressure, further contributing to thermal stress. Regular inspection of moving part clearances, verification of cooling system function, and timely filter maintenance are crucial preventive steps.
Oil Leakage: External leaks frequently originate from a damaged main shaft seal or a scratched shaft surface. Internally, contamination or sustained high temperatures can compromise sealing performance. Loose pipe connections or degraded gaskets may also lead to seepage. We advise replacing compromised seals, repairing shaft surfaces, tightening connections, and monitoring oil quality and temperature to prevent recurrence.
To maximize service life and system stability, we strongly recommend implementing routine checks on oil cleanliness, seal integrity, and filter condition. Avoiding dry-start conditions and overpressure operation will further enhance durability and performance.
Procuring critical industrial components requires absolute confidence in the manufacturer. We stand behind every unit that leaves our facility with stringent quality assurance protocols and comprehensive support structures.
Rigorous Factory Testing: Every single pump undergoes a 100% comprehensive performance test on advanced hydraulic test benches before dispatch, ensuring it meets exact pressure, flow, and efficiency specifications.
International Certifications: Our manufacturing processes and final products are fully audited and certified by leading global third-party authorities, including CTI and BV, guaranteeing adherence to international engineering standards.
Solid Warranty Protection: We provide a comprehensive 12-month warranty against manufacturing defects. Should any quality issues arise within this period, we promptly supply the necessary replacement parts to minimize your downtime.
Rapid Global Logistics: Understanding the urgency of industrial supply chains, we maintain optimized inventory levels to ensure fast dispatch, often shipping standard configurations within 15 days of order confirmation.
24/7 Technical Support: Our team of seasoned hydraulic engineers is available around the clock to assist with installation guidance, controller tuning, and complex system troubleshooting.
Selecting the right manufacturing partner is just as critical as selecting the right hydraulic component. We bring decades of specialized expertise to the table, ensuring that you receive not only a superior product but also an unparalleled procurement experience.
Deep Industry Expertise: With years of dedicated focus on high-pressure hydraulic systems, our engineering team possesses the profound technical knowledge required to solve your most complex fluid power challenges.
End-to-End Manufacturing: By controlling the entire production process—from raw material casting to final precision machining and assembly—we maintain strict oversight over quality and costs, passing those benefits directly to you.
Custom Engineering Solutions: We do not just sell off-the-shelf products. We collaborate closely with your design teams to modify flanges, shafts, and control valves to perfectly match your proprietary equipment architectures.
Unwavering Reliability: We view ourselves as an extension of your supply chain. Our commitment to consistent quality, on-time delivery, and transparent communication ensures that your production lines never stop due to component shortages.
To ensure maximum service life and prevent premature wear of the precision-machined internal components, we strongly recommend maintaining a fluid cleanliness level of at least ISO 4406 class 20/18/15. Utilizing high-quality return line and pressure filters is essential to achieve and maintain this standard.
Yes, absolutely. Thanks to the 100% through-drive capability and standardized SAE/ISO mounting flanges, you can easily tandem-mount an existing gear pump to the rear of our axial piston pump. This allows you to drive both pumps from a single electric motor or diesel engine, significantly simplifying your system layout.
The maximum displacement can be mechanically limited using the adjustable stop screws located on the swashplate control cylinder. By carefully turning these adjustment screws inward, you restrict the maximum angle the swashplate can achieve, thereby permanently capping the maximum fluid output per revolution to match your exact system requirements.
Before the first startup, it is critical to manually fill the pump casing with clean, filtered hydraulic fluid through the highest available drain port. Furthermore, ensure that the suction line is fully primed and free of air pockets. We recommend jogging the drive motor in short bursts initially to allow the fluid to circulate and lubricate the internal bearings and sliding surfaces fully.
Yes, the modular design of the control block allows for field interchangeability of the control valves. If your operational requirements change—for example, upgrading from a simple constant pressure control to a load-sensing control—our technical support team can supply the appropriate control module and guide your maintenance staff through the bolt-on replacement and calibration process.
