Rexroth ALA10VO60DFR1/52L-VUC11N00-S2344 Piston Pump

The Bosch Rexroth ALA10VO60DFR1/52L-VUC11N00-S2344 is a high-precision, variable displacement axial piston pump engineered for open-circuit mobile hydraulic systems. While the A10VO series is widely known for its versatility in sizes ranging from 18 to 74, this specific ALA10VO60 configuration is a specialized 60cc unit designed for high-performance applications where space and efficiency are critical.

This exact model is a “Long-Tail” powerhouse, featuring the DFR1 (Pressure and Flow Control) valve and a Left-hand (Counter-clockwise) rotation. It is the definitive power source for specialized construction and agricultural equipment that requires precise load-sensing capabilities and high-temperature resistance.

Technical Performance & Design Features

Identifying the correct replacement for a failed pump requires matching every character of the model code. This ALA10VO60 unit offers several distinct engineering advantages:

DFR1 Load Sensing (X-Port Plugged): The DFR1 control valve provides excellent pressure and flow regulation. By plugging the X-port internally, this pump simplifies the hydraulic circuit while maintaining the energy-saving benefits of a load-sensing system.
Left-Hand Rotation (52L): Configured specifically for counter-clockwise drive inputs, ensuring compatibility with specialized PTOs and engine layouts.
Premium Viton Sealing (V): Equipped with FKM (Viton) seals as standard, this pump is built to withstand the intense heat of continuous mobile operation and is fully compatible with advanced synthetic hydraulic fluids.
OEM Custom Specification (S2344): The “S2344” suffix designates this as a custom-built unit for specific original equipment manufacturers. This guarantees that all internal tolerances and external porting align perfectly with the original factory setup.

Exact Technical Specifications Matrix

Feature	Specification for ALA10VO60DFR1/52L-VUC11N00-S2344
Pump Design	Variable Axial Piston (Swashplate)
Market Standard	ALA (North American / SAE Standards)
Displacement	60 cc/rev
Control Type	DFR1 (Pressure & Flow Control, X-port plugged)
Rotation Direction	Left-Hand (Counter-clockwise)
Sealing Material	V – FKM (Viton)
Shaft/Flange	SAE Splined Shaft / 2-Hole Flange
Nominal Pressure	250 bar (3600 psi)
Peak Pressure	315 bar (4500 psi)

Frequently Asked Questions (FAQs)

Q1: What is the significance of the “ALA” prefix compared to the standard “A10VO”? The “ALA” prefix typically indicates a version of the pump that adheres to specific SAE (Society of Automotive Engineers) mounting and shaft standards, often customized for the North American market or specific global OEM requirements.

Q2: Can this pump be used in a system requiring Right-hand rotation? No. The “L” in the model code (52L) designates Left-hand rotation. Attempting to drive this pump in a clockwise direction will result in zero pressure and immediate internal damage due to lack of lubrication.

Q3: What does the “S2344” code at the end of the part number mean? The “S2344” is a manufacturer-specific OEM code. It indicates that this pump has been built to the exact specifications of a particular machine brand, ensuring it is a direct “drop-in” replacement for the unit originally installed on the vehicle.

Q4: Is the DFR1 control interchangeable with a standard DFR valve? While both are load-sensing controls, the DFR1 has the X-channel (load signal port) plugged internally. If your system relies on an external signal line connected to the pump valve, you must ensure your circuit is compatible with the DFR1’s internal configuration.

Q5: Why are Viton (FKM) seals used in this specific ALA10VO60 model? Viton seals are utilized to provide superior resistance to high temperatures and aggressive chemicals. This is especially important in mobile machinery where the pump is located near a hot engine or when using modern, environmentally friendly hydraulic fluids.