D1P260RATPSNTE4Y3D208025025NNFSFSNNN Danfoss Axial Piston Pump 260 cc 350 bar

Product Overview

The D1P260RATPSNTE4Y3D208025025NNFSFSNNN is a high-power open-circuit axial piston pump from the Danfoss D1P series (compatible with D1P130 / D1P145 / D1P193 / D1P260 sizes). Designed for heavy-duty mobile and industrial applications, it features a swashplate axial piston design with multiple control options (pressure compensation, load sensing, power limiting, etc.), delivering high power density and excellent dynamic response. Fully interchangeable with genuine Danfoss units, it allows direct drop-in replacement without modification to mounting interfaces or piping. Every unit undergoes 100% simulated operating-condition testing to guarantee consistent performance and reliability.

Technical Specifications 

• Model: D1P260RATPSNTE4Y3D208025025NNFSFSNNN (series includes D1P130 / D1P145 / D1P193 / D1P260)
• Displacement: Max. 260 cm³/rev (15.87 in³/rev)
• Continuous / Rated Working Pressure: up to 350 bar
• Peak / Intermittent Pressure: up to 400 bar
• Input Speed: Min. 500 rpm; Rated 2300 rpm; Max. 2300 rpm
• Theoretical Flow: up to approx. 598 l/min (at max. speed & displacement)
• Control Type: Pressure compensated + load sensing (configuration dependent)
• Rotation: Configurable clockwise (R) or counterclockwise (L)
• Mounting Flange: SAE J744 165-4 (E)
• Weight: approx. 141 kg
• Brand / Series: Danfoss D1P high-power open-circuit axial piston pump

Key Technical Advantages

1. High Power Density & Pressure Capability: Continuous working pressure of 350 bar and peak pressure of 400 bar, combined with large displacement, enable high flow and torque output in a compact package for heavy-duty applications.
2. Advanced Multi-Control Options: Supports pressure compensation, load sensing, power limiting, and electric proportional displacement control for precise flow/pressure matching, improved system efficiency, and fast response.
3. Integral Charge Pump & High-Speed Capability: Impeller-assisted design allows higher inlet speeds (up to 2300 rpm), reduces cavitation risk, and handles demanding suction conditions.
4. Robust Construction & Long-Life Bearings: High-strength materials and precision manufacturing, combined with optimized bearing systems, ensure reliable long-term operation under high pressure and speed.
5. True Interchangeability & Modular Serviceability: Fully compatible with OEM mounting dimensions and interfaces. Modular components allow rapid repair and displacement adjustment, minimizing downtime.

Application Areas

• Main pump systems on construction machinery (excavators, loaders, cranes)
• Agricultural and forestry equipment hydraulic drives
• Port and material-handling equipment
• Industrial fixed hydraulic power units and high-pressure systems
• Any mobile or stationary application requiring high-flow, high-pressure open-circuit performance

Expert Maintenance Tips

1. Ensure proper flange and shaft alignment during installation. Tighten to specified torque and verify correct rotation and inlet/outlet piping connections.
2. Use anti-wear hydraulic oil meeting ISO cleanliness requirements; system filtration should be at least 10–20 μm. Thoroughly bleed air and check case pressure before initial start-up.
3. Regularly monitor inlet pressure and case drain pressure to avoid cavitation or over-pressure. Verify control valve settings to prevent overshoot.
4. During service, inspect swashplate, pistons, and valve plate for wear; replace complete rotating groups when necessary. Store long-term units in a dry environment and rotate the shaft periodically.