Rexroth A11VO & A11VLO Variable Axial Piston Pump
Guangdong Haozheng Hydraulic Equipment Co., Ltd. specializes in manufacturing high-pressure, heavy-duty Rexroth A11VO and A11VLO series variable displacement axial piston pumps. Designed with a swashplate structure for open-circuit hydraulic drives, this series is internationally recognized for its outstanding choice of controllers, high permissible speeds, and proven reliability under rugged mobile and stationary working conditions.
As an established global hydraulic supply partner, Haozheng provides complete A11VO assemblies and internal repair kits with 100% dimensional and performance interchangeability with original Bosch Rexroth products. To eliminate installation failures and guarantee flawless operation, every unit undergoes strict continuous-load performance verification on our advanced hydraulic test benches before global shipment.
Technical Parameters & Model Selection Guide
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Nominal Pressure: 350 Bar (35 MPa)
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Peak Pressure: 400 Bar (40 MPa)
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Displacements: 28 / 40 / 60 / 75 / 90 / 135 / 145 / 165 / 190 / 260 cc/rev
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Suction Characteristics: A11VLO features an integrated charge pump (impeller) for elevated suction speeds and high-altitude/cold工况 compatibility.
| Displacement (cc/rev) | Available Control Types | Full Model Reference (A11VO / A11VLO) |
| A11VO 28 | Standard Pilot Controls | A11VO28 Standard Series |
| A11VO 40 | DR / DRG / LRDS | A11VO40DR, A11VO40DRG, A11VO40LRDS |
| A11VO 60 | Standard Pilot Controls | A11VO60 Standard Series |
| A11VO 75 | DR / DRG / LRDS | A11VO75DR, A11VO75DRG, A11VO75LRDS |
| A11VO 90 | DR / DRG / LRDS | A11VO90DR, A11VO90DRG, A11VO90LRDS |
| A11V(L)O 135 | DR / DRG / LRDS | A11VO135LRDS, A11VLO135LRDS, A11VO135DRG |
| A11V(L)O 145 | DR / DRG / LRDS | A11VO145LRDS, A11VLO145LRDS, A11VO145DR |
| A11V(L)O 165 | Standard Heavy Duty | A11VO165 / A11VLO165 Series |
| A11V(L)O 190 | DR / DRG / LRDS | A11VO190LRDS, A11VLO190LRDS, A11VO190DRG |
| A11V(L)O 260 | DR / DRG / LRDS | A11VO260LRDS, A11VLO260LRDS, A11VO260DR |
Heavy-Duty Power for Mobile and Stationary Machinery
Thanks to its robust 350-bar rating and superior dynamic response, our A11VO/A11VLO piston pumps excel in high-vibration, high-torque industrial applications:
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Excavators (挖掘机): Serving as the primary hydraulic power unit for medium-to-large crawler excavators, ensuring smooth multi-valve coordination.
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Concrete Pump Trucks (臂架泵车): Driving the core high-pressure pumping loops and boom-extension hydraulic systems under rigorous continuous duties.
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Tunnel Boring & Roadheaders (掘进机 / 盾构机): Delivering steady, continuous oil flow to underground excavation heads, rock cutting wheels, and shield propulsion cylinders.
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Other Mobile Work Machinery: Highly integrated into modern drilling rigs, mobile cranes, and material handling crawlers.
The Haozheng Promise: Data-Driven Quality & Dependable Global Logistics
Sourcing your hydraulic replacement parts from Guangdong Haozheng Hydraulic Equipment Co., Ltd. ensures a premium B2B manufacturing and logistics experience:
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Flawless Mechanical Interchangeability: From complete pump assemblies to critical internal components (including rotation groups, piston shoes, swashplates, and charge pumps), our items 100% match original Rexroth specifications for plug-and-play maintenance.
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Advanced Hydraulic Test Bench Calibration: Every A11VO / A11VLO unit undergoes a thorough multi-hour pressure and load trial on our dedicated high-precision test benches. We monitor and guarantee optimal volumetric efficiency before stamping our quality approval.
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Robust Maritime Packing: Heavy high-pressure components are wrapped in protective anti-rust seals and packed inside standard export fumigation-free wooden cases to withstand harsh international logistics.
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Rapid Lead Times & Massive Spare Parts Stock: We stock a major array of rotating groups and control valves (like the LRDS), allowing us to fulfill urgent repair orders instantly and cut your machine’s idle time.
Frequently Asked Questions (FAQ)
Q1: What is the exact difference between Rexroth A11VO and A11VLO? A: The primary difference lies in the suction behavior. The A11VLO is equipped with a built-in charge pump (impeller pump) on the rear shaft, which boosts suction capabilities, allowing the pump to operate at higher rotational speeds and in self-priming conditions where gravity feed is insufficient. The standard A11VO relies on tank pressure or standard self-priming limitations.
Q2: Can I order individual A11VO control valves like the LRDS from Haozheng? A: Yes. Haozheng supplies standalone high-precision control valves, including the LRDS (Power, Pressure, and Flow control), DR (Pressure control), and DRG (Remote pressure control). These are 100% interchangeable with your existing original Rexroth pumps.
Q3: What maintenance tips prevent premature wear on an A11VO pump? A: Because the A11VO runs under high pressures (up to 400 Bar peak), hydraulic oil contamination is the number one enemy. We strongly advise using premium mineral oils, ensuring strict adherence to micron filter replacement intervals, and bleeding the pump housing via the highest drain port prior to the first startup.
Request a Quote on High-Pressure Rexroth A11VO Pumps
Looking for a reliable drop-in replacement pump or a strategic wholesale manufacturing supplier for your machinery fleet? The heavy-machinery team at Guangdong Haozheng Hydraulic is standing by to deliver precise technical matches.
📬 Contact Us for a Fast Estimate: Click the button below to submit your exact model code (e.g., A11VLO190LRDS/10R), required delivery schedule, and mounting specifications. Our technical sales engineers will send a formal quotation within 12 hours.
