Rexroth A11VO40 Series Hydraulic Piston Pump for Compact Mobile Machinery Mining Equipment

Product Overview:
The A11VO40 is a compact, high-performance swashplate design axial piston pump from the renowned Rexroth A11VO series. Specifically engineered for open circuit hydraulic systems, this variable pump delivers exceptional power density, reliable operation, and precise control in a small footprint . With a displacement of 42 cm³/rev and multiple advanced control options, it provides stepless flow adjustment for demanding mobile and industrial applications where space is limited but performance cannot be compromised . This unit is a direct, high-quality replacement solution for original Rexroth equipment.

Technical Specifications:

• Model: A11VO40

• Type: Swashplate design, variable axial piston pump 

• Displacement: 42 cm³/rev (steplessly variable from Vg max to Vg min = 0) 

• Nominal Pressure: 350 bar (35 MPa) 

• Maximum Pressure: 400 bar (40 MPa) 

• Maximum Speed: 3000 rpm at Vg max; up to 3500 rpm at reduced displacement 

• Flow Rate: Up to 126 L/min 

• Control Options: DR (pressure control), DRS, DRG, LR (power control), LR.C, LR3, LG1, LG2, DH1, DH2, EP1, EP2 (electro-proportional), and more 

• Design: For open circuit hydraulic systems 

• Operating Mode: Self-priming conditions, with tank pressurization, or with optional built-in charge pump (impeller) 

• Through-Drive: 100% through drive suitable for adding gear pumps and axial piston pumps up to the same nominal size 

• Mounting Flange: SAE / ISO 3019-1 standard

• Weight: Approximately 32 kg 

• Material: Robust cast iron construction 

• Temperature Range: -20°C to +90°C

Core Features:

• Compact Swashplate Design: The robust swashplate design ensures reliable operation, excellent efficiency, and long service life in a compact, space-saving package ideal for small machinery .

• Designed for Mobile Applications: Primarily engineered for use in demanding mobile applications, with rugged construction to withstand harsh operating conditions .

• Multiple Advanced Control Options: Comprehensive range of controls available matching any application requirement, including power, pressure, hydraulic pilot, and electro-proportional options . Power control option is externally adjustable, even when the pump is running .

• Stepless Variable Displacement: Output flow is proportional to drive speed and infinitely variable between Vg max and Vg min = 0, offering precise flow matching to reduce energy consumption and heat generation .

• Through-Drive Capability: 100% through drive suitable for adding gear pumps and axial piston pumps up to the same nominal size, enabling flexible and space-saving multi-circuit system configurations .

• Exceptional High-Speed Capability: Notably designed to achieve particularly high speeds (up to 3500 rpm), especially when configured with optional charge pump .

• Flexible Installation Options: Operates under self-priming conditions, with tank pressurization, or with optional built-in charge pump (impeller) for enhanced suction performance .

• Durability: Robust bearing system and high-quality cast iron materials ensure long service life in demanding continuous operation .

• High Power Density: Delivers impressive power in a compact 32 kg package, providing excellent power-to-weight ratio .

Main Applications (Suitable Equipment):
The A11VO40 is widely recognized as the specialized compact power unit for machinery requiring high-pressure, variable flow hydraulics in space-constrained applications. It is extensively used in:

1. Compact Construction Machinery:

• Small excavators (1.5-6 ton class) - main hydraulic pump

• Compact loaders and skid steer loaders

• Mini crawler dozers and compact road rollers

• Small concrete pump trucks - auxiliary functions

2. Mining & Tunneling Machinery:

• Small mining equipment and roof bolters 

• Rock drilling rigs and foundation equipment 

• Tunneling machinery auxiliary systems

3. Material Handling Equipment:

• Small forklifts and pallet stackers

• Aerial work platforms (compact scissor lifts)

• Telehandlers - auxiliary hydraulic functions

4. Agricultural Machinery:

• Compact tractors (hydraulic implement control)

• Small harvesters and agricultural attachments

• Sprayers and fertilizer applicators

5. Specialty Applications:

• Municipal vehicles and street sweepers

• Waste management equipment

• Marine hydraulics for small vessels

• Industrial power units for light to medium duty applications

6. Hydraulic System Integration:

• Tandem configurations with additional pumps for multi-circuit systems 

• Compact hydraulic power units for mobile and industrial use