A11VO130LRDS A11VO130 130cc Hydraulic Piston Pump Rexroth for Mining Truck and Drilling Rig

Product Overview:
The A11VO130LRDS is a 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 under extreme loads . With a displacement of 130 cm³/rev and the advanced LRDS load sensing + power control, it provides stepless, energy-efficient flow adjustment for demanding mobile and industrial applications . This unit is a direct, high-quality replacement solution for original Rexroth equipment.

Technical Specifications:

• Model: A11VO130LRDS

• Type: Swashplate design, variable axial piston pump

• Displacement: 130 cm³/rev (steplessly variable from Vg max to Vg min = 0) 

• Nominal Pressure: 350 bar (continuous operation) 

• Maximum Pressure: 400 bar (peak) 

• Maximum Speed: 2100 rpm at Vg max; up to 2500 rpm at reduced displacement 

• Flow Rate: Up to 273 L/min (at max speed) 

• Control Type: LRDS - Combined load sensing + pressure cutoff + power control (externally adjustable even when pump is running) 

• 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 66 kg 

• Material: Robust cast iron construction

• Temperature Range: -20°C to +90°C 

Core Features:

• Robust Swashplate Design: The proven swashplate design ensures reliable operation, excellent efficiency, and long service life in open circuit applications .

• LRDS Power-Saving Control: Advanced combined control automatically adjusts pump displacement based on system demand—providing load sensing for flow control, pressure cutoff for system protection, and power limiting to prevent engine overload. Power control is externally adjustable, even during pump operation .

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

• 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 .

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

• High-Pressure Capability: Delivers 350 bar nominal and 400 bar peak pressure, meeting demanding mobile and industrial application requirements .

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

• High Power Density: Delivers 159 kW of power at 2100 rpm, providing excellent power-to-weight ratio .

Main Applications (Suitable Equipment):
The A11VO130LRDS is widely recognized as the specialized power unit for heavy machinery requiring high-pressure, variable flow hydraulics. It is extensively used in:

1. Excavators & Construction Machinery:

• Main hydraulic pump for medium excavators (15-25 ton class)

• Material handlers and crawler excavators

• Backhoe loaders and construction equipment 

2. Concrete Machinery (Primary Application):

• Main hydraulic pump for concrete pump trucks (boom pumps)

• Concrete mixing plant hydraulics

• SANY, Zoomlion, and Putzmeister concrete pump applications 

3. Tunneling & Mining Machinery:

• Main pump for roadheaders and boom-type tunneling machines

• Tunnel boring machines (TBM) and rock drilling rigs

• Mining machinery and coal mining equipment 

4. Crane & Heavy Lifting Equipment:

• Mobile cranes and crawler cranes

• Hydraulic systems for lifting machinery 

5. Specialty Applications:

• Rotary drilling rigs

• Hydraulic power units for industrial machinery

• Heavy-duty hydraulic systems for steel mills and metallurgical equipment 

6. Combination Applications:

• Tandem configurations with A11VO75 or A11VO40 for complex multi-circuit systems