SNP2NN/014LN06SAP1F5F4NNNN/NNNNN Danfoss Gear Pump 14.4 cm³/rev 250 bar

Product Overview

The SNP2NN/014LN06SAP1F5F4NNNN/NNNNN is a highly representative Group 2 medium-frame high-performance fixed-displacement aluminum external gear pump from Danfoss‘s GearMe product line (formerly the Turolla series). This series covers four major families—SNP1NN, SKP1NN, SNP2NN, and SKP2NN—where SNP2NN is the Group 2 standard gear pump and SKP2NN is the Group 2 high-torque version.

The SNP2NN series offers 9 displacement options from 3.9 to 25.2 cm³/rev, with continuous operating pressures up to 250 bar (3,625 psi). The representative model SNP2NN/014LN06SAP1F5F4NNNN/NNNNN features a displacement of 14.4 cm³/rev.

As a professional hydraulic component manufacturer, we provide 100% interchangeable replacement solutions for the Danfoss SNP2NN series. Every SNP2NN series gear pump undergoes 100% performance testing under simulated actual operating conditions—from displacement accuracy and pressure stability to volumetric efficiency—fully benchmarked against Danfoss original equipment standards.

Model Code SNP2NN/014LN06SAP1F5F4NNNN/NNNNN Breakdown:

• SNP: Series code—high-pressure gear pump

• 2: Group—Group 2 (medium-frame)

• NN: Design version—standard

• 014: Displacement code—14.4 cm³/rev

• L: Rotation direction—L = Counter-clockwise; R = Clockwise

• N: Pump type—standard gear pump

• 06: Flange type—SAE A flange, Ø82.55mm pilot

• SA: Shaft type—SAE splined shaft

• P1: Rear cover—standard cover

• F5/F4: Port type—flange ports

• NNNN/NNNNN: Special configuration/custom code

Technical Specifications 

SNP2NN/014LN06SAP1F5F4NNNN/NNNNN

• Brand: Danfoss

• Product Line: GearMe (formerly Turolla series)

• Group: Group 2 medium-frame

• Theoretical Displacement: 14.4 cm³/rev

• Rated Operating Pressure: 250 bar (3,625 psi)

• Peak Pressure: 280 bar

• Maximum Speed: 3,500 rpm

• Maximum Flow: 50.4 L/min

• Control Type: External gear pump, fixed displacement

• Rotation Direction: L = Counter-clockwise

• Mounting Type: SAE A flange, 2-bolt, Ø82.55mm pilot

• Shaft Type: SAE splined shaft

• Housing Material: High-strength extruded aluminum alloy (with aluminum cover and flange)

• Bearing Type: DU bushings (composite plain bearings)

• Seal Material: Standard / VITON (FKM) with dust lip

• Volumetric Efficiency: ≥ 94%

• Total Efficiency: 85%–92%

• Operating Temperature Range: -20°C to +80°C

• Recommended Fluid Viscosity: 10–800 cSt

• Weight: 2.9 kg

SNP2NN Series Full Displacement Range

• SNP2NN/04: 3.9 cm³/rev, 250 bar, 280 bar, 4,000 rpm, 2.3 kg

• SNP2NN/06: 6.0 cm³/rev, 250 bar, 280 bar, 4,000 rpm, 2.4 kg

• SNP2NN/08: 8.4 cm³/rev, 250 bar, 280 bar, 4,000 rpm, 2.5 kg

• SNP2NN/011: 10.8 cm³/rev, 250 bar, 280 bar, 4,000 rpm, 2.7 kg

• SNP2NN/014: 14.4 cm³/rev, 250 bar, 280 bar, 3,500 rpm, 2.9 kg

• SNP2NN/017: 16.8 cm³/rev, 250 bar, 280 bar, 3,000 rpm, 3.0 kg

• SNP2NN/019: 19.2 cm³/rev, 210 bar, 230 bar, 3,000 rpm, 3.1 kg

• SNP2NN/022: 22.8 cm³/rev, 180 bar, 200 bar, 3,000 rpm, 3.2 kg

• SNP2NN/025: 25.2 cm³/rev, 160 bar, 175 bar, 3,000 rpm, 3.3 kg

SNP1NN / SKP1NN (Group 1) Series Reference Specifications

• Displacement Range: 1.2–12 cm³/rev

• Rated Pressure: Up to 250 bar

• Maximum Speed: 4,000 rpm

• Features: Compact, lightweight, quiet operation

• Mounting Flanges: SAE / ISO / DIN standards

SKP2NN (Group 2 High-Torque) Series Reference Specifications

• Displacement Range: Same as SNP2NN series

• Features: High-torque version, suitable for higher load applications

• Key Difference from SNP2NN: Different shaft configuration with higher torque transmission capacity

Important Note: The above specifications are compiled from Danfoss/Sauer-Danfoss official technical documentation. Different suffix codes represent different rotation directions, flange types, shaft types, and port configurations. Larger displacement models (019/022/025) have reduced pressure ratings to ensure service life. Please refer to the product nameplate or technical agreement for exact specifications.

Key Technical Advantages

1. High-Strength Extruded Aluminum Housing — Lightweight with High Strength

The SNP2NN series pump body is manufactured from high-strength extruded aluminum alloy with aluminum cover and flange. Total weight is only 2.9 kg (14.4 cm³/rev version)—significantly lighter than traditional cast iron pump bodies. The extruded aluminum process ensures excellent mechanical strength and dimensional accuracy, with no deformation under high pressure and superior heat dissipation.

2. Pressure-Balanced Design + DU Bushings — Ultra-High Volumetric Efficiency

The SNP2NN series features pressure-balanced design combined with DU bushings (composite plain bearings), minimizing internal leakage across the entire operating pressure range. Volumetric efficiency reaches 94% or higher, with total efficiency of 85%–92%, significantly reducing system energy consumption.

3. Hydraulic Gap Compensation — High Efficiency Across All Operating Conditions

The SNP2NN series features hydraulic gap compensation between gears and the aluminum housing, automatically compensating for clearance changes caused by wear and thermal expansion. This design ensures stable high-efficiency output across the full operating pressure and speed range, extending effective pump service life.

4. Wide Displacement Coverage with Modular Design — Flexible Configuration

The SNP2NN series offers 9 displacement options from 3.9 to 25.2 cm³/rev, with pressure ratings from 160 to 250 bar and speeds from 3,000 to 4,000 rpm. Multiple SAE, ISO, and DIN mounting flange and shaft options are available, supporting single and multiple pump combinations. Group 1 and Group 2 pumps can be combined as multi-stage pumps driven by a single shaft, saving installation space.

5. Excellent Low-Noise Performance with Compact Design

The SNP2NN series operates at extremely low noise levels, thanks to precision gear design and the vibration-damping characteristics of the aluminum housing. The compact structure makes it particularly suitable for space-constrained applications while meeting stringent noise requirements.

Application Areas

• Construction Machinery: Hydraulic systems for excavators, loaders, rollers

• Agricultural Machinery: Hydraulic systems for tractors, harvesters

• Industrial Hydraulic Systems: Various industrial hydraulic power units

• Turf Care Equipment: Lawn mowers, golf course maintenance equipment

• Aerial Work Platforms: Scissor lifts, telescopic boom lifts

• Material Handling Equipment: Forklifts, stackers

• Hydraulic Power Units: Mobile and stationary hydraulic power stations

• Multi-Pump Combinations: Group 1 + Group 2 multi-stage pumps for space saving

Expert Maintenance Tips

1. Verify Rotation Direction

SNP2NN series pumps must only be operated in the specified rotation direction. In the model code, R = Clockwise (right-hand) and L = Counter-clockwise (left-hand). Always verify alignment with the drive motor’s rotation before installation. Reverse operation is strictly prohibited.

2. First Start-up and Priming

Gear pumps have self-priming capability, but ensure the pump cavity is fully primed with hydraulic fluid before first start-up. Never start the pump dry—this will cause severe wear or seizure of gears and DU bushings.

3. Fluid Cleanliness Management

Gear pumps require proper fluid cleanliness. Maintain fluid cleanliness to ISO 4406 standards. Install appropriately rated filters on the pump suction line and regularly inspect filter element condition. Recommended fluid viscosity is 10–800 cSt, with operating temperature range of -20°C to +80°C.

4. Speed and Pressure Limits

• SNP2NN/014: Rated pressure 250 bar, peak 280 bar

• Maximum Speed: 3,500 rpm

• Peak pressure is permitted for short-term transient conditions only (single occurrence < 10 minutes)

• Larger displacement models (019/022/025) have reduced pressure ratings to ensure service life

5. Seal Material Selection

Standard seals are suitable for conventional hydraulic fluids. For high-temperature or special chemical media applications, select VITON (FKM) seals (with dust lip).

6. Regular Inspection and Maintenance

Inspect the system filter element condition every 500 operating hours. Regularly monitor the pump for abnormal operating noise—if abnormal noise, excessive housing temperature rise, or system pressure drop is detected, shut down immediately for inspection. The SNP2NN series features aluminum housing with DU bushings for low wear, long service life, and low maintenance costs.