Product Overview
The Danfoss JR R S71C LS 26 20 NN F 3 S1AX A9N NNN JJJ NNN (Material Number: 83065959) is a high-performance axial piston pump engineered for demanding industrial hydraulic systems. Featuring a swashplate design with a nominal displacement of 71 cm³/rev, this pump delivers precise, pressure-compensated flow control through its integrated LS (Load Sensing) control architecture. The JR series is renowned for its robust construction, high power density, and exceptional volumetric efficiency, making it a preferred choice for applications requiring accurate flow matching and energy-efficient operation. With its ISO-compliant mounting interface and SAE flange ports, this pump ensures seamless integration into both new system designs and OEM replacement scenarios.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Piston Pump (Axial Piston, Swashplate Design) |
| Model Designation | JR R S71C LS 26 20 NN F 3 S1AX A9N NNN JJJ NNN / 83065959 |
| Nominal Displacement | 71 cm³/rev (Size 71) |
| Control Type | LS (Load Sensing) with Pressure Compensation |
| Operating Pressure | Up to 350 bar continuous / 400 bar peak (standard industrial grade) |
| Speed Range | Up to 2,500 rpm (dependent on inlet pressure and fluid viscosity) |
| Mounting & Connection | ISO 4-bolt flange / SAE split-flange ports (standard manufacturer interface) |
| Shaft Type | Spline shaft (S1AX configuration) |
| Direction of Rotation | Clockwise (viewed from shaft end) |
| Hydraulic Fluid | Mineral oil based hydraulic fluid (HLP/HLVP per DIN 51524) |
| Weight (approx.) | 38 kg |
Engineering Features & Advantages
- Precision Load Sensing Control: The integrated LS control continuously adjusts pump displacement to match system demand, minimizing energy loss and reducing heat generation in complex multi-actuator circuits.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust construction and wear-resistant internal components for extended service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original DANFOSS OEM standards, ensuring drop-in replacement without modification to existing manifolds or piping.
Typical Industrial Applications
The JR series is renowned for its robust construction, high power density, and exceptional volumetric efficiency, making it a preferred choice for applications requiring accurate flow matching and energy-efficient operation.
PRODUCT IMAGES


DANFOSS JR R S71C LS 26 20 NN F 3 S1AX A9N NNN JJJ NNN / 83065959 Axial Piston Pump
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine DANFOSS JR R S71C LS 26 20 NN F 3 S1AX A9N NNN JJJ NNN / 83065959 Hydraulic Directional Control Valve. This Denmark-made hydraulic component features a precise spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.