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Rexroth A10VO63LA8DS/53R-VUC12N00-S2580 Hydraulic Pump
Overview
The Rexroth A10VO63LA8DS/53R-VUC12N00-S2580 is a high-performance axial piston variable displacement pump manufactured by Bosch Rexroth. As part of the A10VO series, this pump features a swashplate design and is engineered for open-circuit hydraulic systems, delivering precise control of fluid flow and exceptional reliability in demanding mobile and industrial applications. The A10VO series is widely recognized for its high power density, excellent suction characteristics, low noise operation, and long service life.
Technical Features
Swashplate Axial Piston Design — The pump utilizes a swashplate-type axial piston variable displacement design specifically tailored for open-circuit hydrostatic transmissions. The flow output is proportional to the input drive speed and displacement volume, and by adjusting the swashplate angle, output flow can be infinitely varied. This design ensures optimal conversion of mechanical energy into hydraulic energy.
Nominal Displacement & Pressure Ratings — The pump has a maximum geometric displacement of 63 cm³ per revolution. It operates at a nominal pressure of 250 bar and can withstand maximum intermittent pressures up to 315 bar. The peak pressure capability is 350 bar, making it suitable for medium-to-high pressure hydraulic systems. The maximum flow rate is 163 L/min at nominal speed, with a rated power of 68 kW and a torque output of 250 Nm at nominal pressure.
LA8DS Pressure, Flow, and Power Control — The pump is equipped with LA8DS control, which combines pressure, flow, and power control functions. This advanced control system allows for precise management of hydraulic output, automatically adjusting the pump's displacement in response to system demands. The LA8DS control provides excellent adaptability for applications requiring both pressure compensation and power limiting capabilities, ensuring that the pump delivers only the required power to the load, thereby optimizing energy usage and protecting the prime mover from overload conditions.
Excellent Suction Performance — The A10VO series features superior suction characteristics, ensuring reliable operation even under challenging inlet conditions and reducing the likelihood of cavitation. The pump can be mounted above the tank with a suction height not exceeding 0.5m, thanks to its good self-priming capability.
Low Noise Operation — The pump is designed for low noise levels, enhancing operator comfort and supporting environmental compliance in noise-sensitive industrial environments. Low flow pulsation further contributes to smooth system operation.
High Drive Speed Capability — The pump is approved for high-speed operation, with a maximum speed of 2,600 rpm at Vg max. The ability to run at higher speeds makes it suitable for applications requiring fast hydraulic response and high power output.
Short Control Response Times — The pump features short control response times, ensuring rapid adaptation to changing system demands and precise operation in dynamic hydraulic applications.
High Power-to-Weight Ratio — The pump offers an excellent power-to-weight ratio, contributing to space-saving installation and efficient system design. The compact size enables the pump to provide powerful hydraulic power without adding excessive weight to the machinery.
Through-Drive Capability — The pump features through-drive capability (N00 indicates no through-drive in this specific configuration, but the series supports it), allowing for the mounting of additional pumps up to the same nominal size directly onto it without requiring separate coupling mechanisms. This modular approach facilitates flexible system expansion and enables compact multi-pump configurations.
Robust Construction & Long Service Life — Designed with high-quality materials, a cast iron housing, and wear-resistant components, the pump is built for long-term reliability in demanding industrial environments. The drive shaft can withstand both axial and radial loads, further enhancing durability.
SAE Standardized Mounting — The pump features SAE J744 standard mounting flanges and SAE J518 standard port connections, ensuring compatibility with a wide range of hydraulic systems worldwide. Two case drain ports are provided for convenient installation.
Clockwise Rotation — The pump is designed for clockwise rotation when viewed from the shaft end, denoted by the "R" in its model code, ensuring proper operation and compatibility with other hydraulic components.
Wide Operating Range — The pump operates effectively with mineral oil-based hydraulic fluids (HLP according to DIN 51524) across a wide viscosity and temperature range. The working temperature range is -25°C to +90°C, with a viscosity range of 15–160 mm²/s.
Visible Swing Angle Indicator — The pump features a visible swing angle indicator, providing easy monitoring of the pump's operating state and facilitating maintenance and troubleshooting.
VUC12N00 Porting Configuration — This suffix specifies the porting configuration for the pump, including the port sizes, sealing material, and mounting interface, with NBR seals for standard mineral oil compatibility.
S2580 Special Configuration — The S2580 suffix indicates a special configuration variant within the A10VO series, customized for specific OEM requirements or application conditions.
Key Functionalities
Stepless Variable Displacement — The flow rate can be infinitely varied by adjusting the swashplate angle, providing precise, stepless control over hydraulic output across the entire operating range from zero to maximum displacement. By precisely controlling the angle of the swashplate, the flow rate can be optimized according to actual needs, improving the overall efficiency of the system.
Open-Circuit Hydrostatic Transmission — The pump is specifically designed for open-circuit operation, where fluid returns to the reservoir after each cycle, making it ideal for industrial and mobile hydraulic systems requiring consistent and powerful operation.
LA8DS Integrated Control — The LA8DS control system provides comprehensive management of pressure, flow, and power. This integrated control approach ensures that the pump operates at optimal efficiency under varying load conditions, automatically reducing displacement when system demand decreases and protecting the prime mover from overload.
Through-Drive for Multiple Pump Configurations — While this specific configuration has no through-drive (N00), the A10VO series' through-drive capability allows the pump to serve as a primary unit driving secondary pumps, reducing system complexity and enabling compact, space-saving hydraulic system designs when equipped with the appropriate through-drive option.
Energy Efficient Operation — The variable displacement capability, combined with the LA8DS control system, ensures that the pump delivers only the flow and pressure required by the load. This reduces hydro-mechanical losses, minimizes heat generation, lowers power consumption, and contributes to overall system energy efficiency.
Overload Protection — The pump incorporates internal pressure compensation functions to protect the system from excess pressure, ensuring safe operation under varying load conditions. The power control function also protects the prime mover from overload by limiting the pump's power demand.
High Reliability & Low Maintenance — With its robust construction, high-quality materials, and wear-resistant components, the pump ensures long-term operational stability with minimal maintenance requirements, reducing downtime and total cost of ownership.
Application Sectors
The Rexroth A10VO63LA8DS/53R-VUC12N00-S2580 hydraulic pump is designed for medium-pressure, heavy-duty mobile and industrial applications requiring reliable hydraulic power with precise control. The A10VO series is widely used across a broad spectrum of industries:
| Industry Sector | Typical Applications |
|---|---|
| Construction & Engineering Machinery | Excavators (particularly 6T class excavators), wheel loaders, bulldozers, backhoes, concrete pump trucks, cranes, drilling equipment |
| Industrial Equipment | Hydraulic presses, injection molding machines, blow molding equipment, plastic machinery, die-casting machines |
| Agricultural Machinery | Combine harvesters, tractors, self-propelled agricultural equipment requiring hydraulic drives for travel and implements |
| Metallurgy & Steel | Steel mill hydraulic stations, rolling mills, continuous casting equipment, slab handling machinery |
| Ceramic & Refractory Industry | Ceramic press machines, tile presses, brick presses, refractory material presses |
| Marine & Offshore | Ship hydraulic systems, deck machinery, winches, steering gear |
| Petroleum & Petrochemical | Oil field machinery, drilling equipment, petrochemical processing equipment |
| Mining Equipment | Mining machinery, material handling systems, conveyor drives |
| Paper Manufacturing | Paper mill hydraulic systems, paper machinery hydraulic components |
| Aerospace | Aerospace ground support equipment, aircraft manufacturing hydraulic systems |
| Machine Tools & CNC | CNC machine tools, heavy machine tool controls, industrial automation |
| Construction & Mobile Machinery | Mobile equipment requiring reliable hydraulic power for travel and implement functions |
Performance Specifications
| Specification | Value |
|---|---|
| Manufacturer | Bosch Rexroth |
| Series | A10VO |
| Model Code | A10VO63LA8DS/53R-VUC12N00-S2580 |
| Pump Type | Axial piston variable displacement pump (swashplate design) |
| Circuit Type | Open circuit |
| Displacement (Vg max) | 63 cm³/rev |
| Nominal Pressure (Continuous) | 250 bar (3,625 psi) |
| Maximum Pressure (Intermittent) | 315 bar (4,568 psi) |
| Peak Pressure Capability | 350 bar (5,076 psi) |
| Maximum Speed (at Vg max) | 2,600 rpm |
| Maximum Flow Rate (at n=2600 rpm) | 163 L/min |
| Rated Power (at nominal pressure) | 68 kW |
| Torque Output (at nominal pressure) | 250 Nm |
| Control Type | LA8DS — Pressure, flow, and power control |
| Rotation Direction | Clockwise (R) when viewed from shaft end |
| Housing Material | Cast iron |
| Seals | NBR (nitrile rubber) |
| Weight | 22 kg |
| Fluid Compatibility | Mineral oil-based hydraulic fluids (HLP per DIN 51524), synthetic hydraulic oils |
| Working Viscosity Range | 15–160 mm²/s |
| Operating Temperature Range | -25°C to +90°C |
| Fluid Cleanliness Requirement | ISO 4406 minimum (recommended 20/18/15 or better) |
| Mounting Standard | SAE J744 |
| Port Standard | SAE J518 |
| Series | 53 (medium-duty series) |
Conclusion
The Rexroth A10VO63LA8DS/53R-VUC12N00-S2580 is a high-performance axial piston variable displacement pump that exemplifies Bosch Rexroth's decades of expertise in hydraulic drive technology. With its advanced swashplate design, LA8DS pressure, flow, and power control, excellent suction characteristics, through-drive capability, and robust cast iron construction, it delivers exceptional power density, precise flow control, and reliable operation for demanding open-circuit hydraulic systems.
The pump's LA8DS control system is its defining feature, providing integrated management of pressure, flow, and power to ensure optimal efficiency under varying load conditions. This makes it particularly well-suited for applications requiring both pressure compensation and power limiting capabilities, such as excavators, injection molding machines, and hydraulic presses.
With a displacement of 63 cm³, nominal pressure of 250 bar, peak pressure capability up to 315 bar, maximum speed of 2,600 rpm, and a compact 22 kg cast iron construction, this pump is an ideal solution for a wide range of medium-pressure applications — from construction machinery, agricultural equipment, and material handling systems to industrial machinery, steel mills, ceramic presses, and machine tool controls.
As a proven, reliable, and energy-efficient solution for open-circuit hydrostatic drives worldwide, the A10VO63LA8DS/53R-VUC12N00-S2580 stands out as a versatile component where integrated pressure-flow-power control capability, high-speed performance, and long-term dependability are essential requirements.
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