Rexroth A11VLO190 Hydraulic Plunger Pump for Concrete Pump Trucks Tunnel Boring Machines

Product Overview:
The A11VLO190 is a high-performance swashplate design axial piston pump from the renowned Rexroth A11VLO 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 193 cm³/rev and multiple advanced control options, it provides stepless flow adjustment for demanding mobile and industrial applications . This unit is a direct, high-quality replacement solution for original Rexroth equipment.

Technical Specifications:

• Model: A11VLO190

• Type: Swashplate design, variable axial piston pump

• Displacement: 193 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 

• Flow Rate: Up to 405 L/min (at max speed)

• Control Options: LR (power control), LR.C, LR3, LG1, LG2, DR (pressure control), DRS, DRL, DH1, DH2, DH.D, DH.G, EP1, EP2 (electro-proportional), DE.D, EP.G, 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 version available for US market compatibility 

• Weight: Approximately 95 kg 

• Material: Robust cast iron construction 

• Temperature Range: -25°C to +115°C 

Core Features:

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

• Designed for Mobile Applications: Primarily engineered for use in demanding mobile equipment, 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, especially when configured in the impeller pump version AVLO .

• 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 236 kW of power at 2100 rpm, providing excellent power-to-weight ratio .

Main Applications (Suitable Equipment):
The A11VLO190 is widely recognized as the specialized power unit for heavy machinery requiring high-pressure, variable flow hydraulics. It is extensively used in:

1. Concrete Pump Trucks:

• Main hydraulic pump for SANY concrete pump trucks 

• Main oil pump for Zoomlion and Putzmeister concrete pump trucks 

• 37m arm pump truck main pump - SANY 37m boom pump truck uses A11VLO190 as main pump 

• Boom pump systems and concrete placing equipment

2. Tunneling & Mining Machinery:

• Tunnel boring machines (TBM) and roadheaders 

• Mining machinery and coal mining equipment - main hydraulic pump 

• Rock drilling rigs and foundation equipment

3. Excavators & Construction Machinery:

• Main hydraulic pump for large excavators 

• Construction machinery requiring high-pressure hydraulics 

• Heavy-duty mobile equipment

4. Crane & Heavy Lifting Equipment:

• Sennebogen 5500 crane hydraulic system 

• Mobile cranes and crawler cranes

• Material handlers and heavy lifting equipment

5. Industrial Applications:

• Hydraulic power units for heavy industry

• Aluminum extrusion presses and forging equipment 

• Metallurgical equipment and heavy presses

• Industrial hydraulic systems requiring high-pressure variable flow

6. Specialty Applications:

• Rotary drilling rigs

• Shield tunneling machines 

• Paper industry machinery 

• Power plant hydraulic systems 

• Smelting and mining applications