SNP2IN/017LN01DAI1C7C3NNNN/VLWNN Danfoss Hydraulic Gear Pump 17cc 250bar

Product Overview

The SNP2IN/017LN01DAI1C7C3NNNN/VLWNN is a Danfoss SNP2IN Series (Group 2) aluminum-bodied fixed displacement external gear pump. Originally part of the Sauer-Danfoss and Turolla product lines, it now belongs to the Danfoss GearMe product family.

The SNP2IN Series features a high-strength extruded aluminum body, cover, and flange, delivering an optimal balance of lightweight construction and structural robustness. The pressure-balanced design ensures sealing pressure automatically adapts to operating conditions, improving overall efficiency and minimizing energy consumption. The SNP2NN Series offers 9 displacement options ranging from 3.9 to 25.2 cc/rev. This model delivers 17 cc/rev displacement with a rated pressure of 250 bar and maximum speed of 3,500 rpm.

As an original specification model within the Danfoss SNP2IN line, this product enables direct form-fit-function interchangeability with original Danfoss/Turolla units—no modifications to piping or mounting interfaces required. Our replacement solution strictly adheres to Danfoss technical standards and undergoes 100% simulated in-service testing to ensure performance, reliability, and service life identical to OEM products.

Technical Specifications

Applicable Model (Primary):

• SNP2IN/017LN01DAI1C7C3NNNN/VLWNN

Interchangeable Models:

• SNP2NN/017RN06SAP1B7B5YYNN/NNNNN (Part No. 111.20.152.00)

• SNP2NN/017LN04-AAP1B7-B5-NNNN/NNNNN (Part No. 111.20.101.00)

• SNP2NN/017RN01BAP1C7C3NNN (Part No. 111.20.222.00)

Model Code Breakdown (per Danfoss naming convention):

• SNP2IN — Danfoss Group 2 Standard Gear Pump

• 017 — 17 cc/rev displacement

• LN01 — Left-hand rotation (L = Counterclockwise), 01 = European 4-bolt flange

• DAI1 — Drive gear and configuration code

• C7C3 — Port configuration

• NNNN/VLWNN — Seals and specific configuration code

Series Technical Specifications (per Danfoss official documentation):

• Product Series: Danfoss SNP2IN/SNP2NN Aluminum Gear Pump

• Pump Type: Fixed Displacement External Gear Pump

• Body Material: High-Strength Extruded Aluminum Alloy

• Gear Material: Hardened Steel Gears

• Mounting Standards: SAE, DIN, and European standard flanges

This Model Detailed Specifications (per Danfoss official documentation):

• Geometric Displacement: 17 cm³/rev

• Rated Operating Pressure: 25 MPa (250 bar / 3,625 psi)

• Maximum Operating Pressure: 27 MPa (270 bar / 3,915 psi)

• Maximum Speed: Approx. 3,500 min⁻¹

• Minimum Speed: Approx. 500 min⁻¹

• Theoretical Flow (@3,500 rpm): Approx. 59.5 L/min

• Theoretical Flow (@1,500 rpm): Approx. 25.5 L/min

• Theoretical Flow (@2,000 rpm): Approx. 34 L/min

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

• Recommended Fluid Viscosity: 10 – 800 cSt

• Fluid Compatibility: Mineral Hydraulic Oil

• Rotation Direction: Left-hand (counterclockwise, viewed from shaft end)

• Mounting Flange: European 4-bolt flange (or SAE A 2-bolt, configuration dependent)

• Drive Shaft: Per specific configuration

Key Technical Advantages

1. High-Strength Extruded Aluminum Body — Lightweight with Superior Strength
The SNP2IN Series features a high-strength extruded aluminum body, cover, and front flange, delivering an optimal balance of maximum strength and minimum weight. The lightweight design simplifies installation and reduces overall equipment load, making it particularly suitable for weight-sensitive mobile hydraulic applications.

2. Pressure-Balanced Design for High Volumetric Efficiency
The pressure-balanced design ensures sealing pressure automatically adapts to operating conditions, improving overall efficiency and minimizing energy consumption. Pressure balance plates improve internal sealing, reduce leakage, and maintain operating pressure under high flow output.

3. Hardened Steel Gears with Excellent Contamination Resistance
Hardened steel gears provide protection against wear, abrasion, and fluid contamination. The SNP Series exhibits low sensitivity to fluid contamination, maintaining reliable operation under typical industrial fluid cleanliness conditions.

4. Modular Design with Flexible Multi-Pump Configurations
The SNP2IN Series supports single, tandem, and multiple pump configurations, stackable with SNP1NN, SNP2NN, and SNP3NN pumps. The modular design enhances flexibility with compact dimensions.

5. Wide Speed Range with Excellent Suction Characteristics
The SNP2IN Series offers a broad speed range (approx. 500 – 3,500 rpm), flexibly adapting to various flow requirements. Low-noise design and excellent suction characteristics ensure stable operation under diverse operating conditions.

Application Areas

• Construction Equipment: Excavator and wheel loader hydraulic working systems and pilot control systems

• Agricultural Machinery: Tractor hydraulic systems, combine harvesters, sprayers

• Material Handling Equipment: Forklift hydraulic systems, aerial work platforms

• Forestry Machinery: Forestry vehicle hydraulic systems

• Municipal & Sanitation Vehicles: Street sweepers, cleaning vehicles

• Industrial Hydraulic Systems: Small to medium industrial hydraulic power units

Expert Maintenance Tips

1. Installation Precautions

• The SNP2IN Series is a uni-directional rotation pump—verify that the system’s required rotation direction matches the pump’s identification marking before installation. This model features left-hand (counterclockwise) rotation.

• Ensure coaxial alignment between the pump and drive shaft; flexible couplings are recommended to avoid radial loads on the pump shaft.

• The suction line diameter must not be smaller than the pump inlet port to prevent cavitation.

2. Fluid Management

• Use mineral hydraulic oils conforming to ISO/DIN standards.

• System fluid cleanliness must meet Danfoss-recommended standards.

• Prime the pump by filling the housing with hydraulic fluid through the suction port before initial start-up. Never run the pump dry.

3. Start-Up & Commissioning

• Use jog start method for initial start-up; verify correct rotation direction before continuous operation.

• Allow the pump to run under no-load (low pressure) conditions for 2-3 minutes to purge air and ensure proper lubrication.

• Gradually increase to operating pressure (up to 250 bar) while monitoring noise, temperature, and system pressure for normal operation.

4. Routine Maintenance

• The SNP2IN gear pump itself is maintenance-free; however, regular maintenance of the entire hydraulic system is essential for trouble-free pump operation.

• Inspect system fluid cleanliness and condition every 1,000-2,000 operating hours.

• Regularly replace return line filters and suction strainers to prevent contaminant ingress into the pump body.