Rexroth Replacement A10VSO140 A10VSO45 Double Hydraulic Piston Pump for Industry

Product Overview:
The A10VSO140 + A10VSO45 is a high-performance tandem (dual) swashplate design axial piston pump combination from the renowned Rexroth A10VSO series. Specifically engineered for open circuit hydraulic systems, this dual-pump configuration delivers exceptional power density, reliable operation, and precise control for complex machinery requiring multiple independent hydraulic circuits . With a primary pump displacement of 140 cm³/rev and a secondary pump displacement of 45 cm³/rev, this combination provides flexible hydraulic power distribution for demanding industrial and mobile applications. This unit is a direct, high-quality replacement solution for original Rexroth equipment.

Technical Specifications:

• Model Combination: A10VSO140 + A10VSO45 (tandem configuration)

• Type: Swashplate design, variable axial piston pumps (dual / tandem)

• Displacement (Primary): 140 cm³/rev (steplessly variable) 

• Displacement (Secondary): 45 cm³/rev (steplessly variable) 

• Nominal Pressure: 280 bar (continuous operation) 

• Maximum Pressure: 350 bar (peak) 

• Maximum Speed: 1800 rpm (A10VSO140) / 2600 rpm (A10VSO45) 

• Flow Rate: Up to 252 L/min (A10VSO140) / 117 L/min (A10VSO45) 

• Control Options: DR (pressure control), DFR/DFR1 (pressure/flow control - load sensing), DFLR (power control), and more (control type depends on specific model configuration) 

• Design: For open circuit hydraulic systems with through-drive configuration 

• Mounting Flange: SAE / ISO 3019-1 standard 

• Port Connection: SAE J518 flange ports 

• Total Weight: Approximately 81 kg (60kg + 21kg) 

• Material: Robust cast iron construction 

• Temperature Range: -20°C to +80°C

Core Features:

• Tandem / Dual Pump Configuration: Two high-performance pumps in a compact, space-saving tandem arrangement, providing independent hydraulic power for multiple machine functions from a single drive source .

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

• Multiple Advanced Control Options: Wide variety of controls available (DR/DFR/DFR1/DFLR) to suit specific application needs, allowing precise customization to various system requirements .

• Stepless Variable Displacement: Flow is proportional to drive speed and displacement, adjustable steplessly from maximum down to zero via the swashplate angle, offering precise flow matching to reduce energy consumption and heat generation .

• Through-Drive Capability: The tandem configuration utilizes the through-drive feature, allowing the primary pump to drive the secondary pump efficiently for multi-circuit systems .

• Excellent Suction Characteristics: Superior self-priming performance ensures reliable operation even in demanding conditions and at higher speeds .

• Low Noise Operation: Optimized design ensures low noise levels during operation, making it suitable for noise-sensitive environments .

• Dual Case Drain Ports: Two case drain ports facilitate maintenance and fluid management within the hydraulic system .

• High Power-to-Weight Ratio: Compact construction delivers impressive power density in a relatively lightweight package .

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

Main Applications (Suitable Equipment):
The A10VSO140 + A10VSO45 tandem pump combination is widely recognized as a versatile and powerful hydraulic power unit for complex machinery requiring multiple independent circuits. It is extensively used in:

1. Large Injection Molding Machines:

• Main hydraulic power unit for clamping, injection, and ejection functions in large tonnage injection molding machines .

• Provides independent flow for different machine phases, optimizing cycle times and energy efficiency.

2. Heavy-Duty Industrial Machinery:

• Hydraulic presses (large C-frame, H-frame, and forging presses) requiring separate circuits for main ram and auxiliary functions.

• Metallurgical equipment (steel mills, rolling mills, shearing machines) .

• Large machine tools with multiple hydraulic functions.

3. Construction Machinery:

• Concrete pump trucks - separate circuits for boom positioning and concrete pumping .

• Large excavators (25-40 ton class) - main and auxiliary pump functions.

• Crawler cranes and heavy lifting equipment.

4. Mining & Tunneling Machinery:

• Mining equipment and large rock drilling rigs .

• Tunneling boring machines and roadheaders .

• Coal mining machinery - hydraulic main pumps .

5. Material Handling Equipment:

• Heavy-duty forklifts and container handlers.

• Large telehandlers and rough-terrain forklifts.

• Mobile cranes and crawler cranes.

6. Marine & Offshore:

• Ship hydraulic systems (deck machinery, winches, cranes) .

• Offshore equipment and port machinery.

7. Specialty Applications:

• Heavy-duty hydraulic power units for industrial plants .

• Petroleum machinery and oil field equipment .

• Heavy-duty hydraulic systems for flatbed vehicles and specialized transport equipment