| Pump Type | External Gear Pump(Group 1) |
| Displacement Range | Min 1.2cc/rev, Max 12cc/rev |
| Pressure Rating | Rated Pressure 15Mpa, Max Pressure 27Mpa |
| Speed Range | Min 500 RPM, Max 4000 RPM |
| Material | Aluminum Alloy |
| Mounting Type | European 4‑bolt flange/ SAE 2‑bolt flange |
| Rotation | Clockwise ,Counterclockwise,bidirectional optional |
| Key Features | High Performance |
| OEM Manufactured Compatibility | Rexroth |
| MOQ | 10 Pcs |
This replacement hydraulic gear pump is fully interchangeable with Danfoss SNP1NN series gear pump.Displacement: 1.2–12 cc/rev, rated pressure 250 bar, peak pressure 270 bar, max speed 4000 rpm.1:1 mounting, shaft, port and flange dimensions for direct plug-and-play installation.Precision components, high-strength aluminum housing, premium seals, low noise and high efficiency.100% pressure and flow tested before shipment with reliable quality warranty.Widely used in construction, agricultural and industrial hydraulic systems
SNP1NN Series Gear Pump Technical Data:
| Frame Size | ||||||||||||
| 1.2 | 1.7 | 2.2 | 2.6 | 3.2 | 3.8 | 4.3 | 6.0 | 7.8 | 10.0 | 12.0 | ||
| Displacement | cm3/rev | 1.18 | 1.57 | 2.09 | 2.62 | 3.14 | 3.66 | 4.19 | 5.89 | 7.59 | 9.94 | 12 |
| SNP1NN | – | – | ||||||||||
| Peak Pressure | bar | 270 | 270 | 270 | 270 | 270 | 270 | 270 | 210 | 170 | ||
| Rated Pressure |
250 | 250 | 250 | 250 | 250 | 250 | 250 | 190 | 150 | |||
| Minimum Speed at 0-150 bar |
Min-1 (rpm) |
800 | 800 | 600 | 600 | 600 | 600 | 500 | 500 | 500 | ||
| Min. Speed at 150 bar to Rated Pressure |
1200 | 1200 | 1000 | 1000 | 1000 | 1000 | 800 | 800 | 800 | |||
| Maximum Speed | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 | 3000 | 3000 | 3000 | |||
| SKP1NN | ||||||||||||
| Peak Pressure | bar | 270 | 270 | 270 | 270 | 270 | 270 | 270 | 250 | 220 | 170 | 140 |
| Rated Pressure |
250 | 250 | 250 | 250 | 250 | 250 | 250 | 230 | 200 | 150 | 120 | |
| Minimum Speed at 0-150 bar |
Min-1 (rpm) |
800 | 800 | 800 | 800 | 800 | 800 | 600 | 600 | 600 | 600 | 600 |
| Min. Speed at 150 bar to Rated Pressure |
1200 | 1200 | 1000 | 1000 | 1000 | 1000 | 1000 | 800 | 800 | 800 | – | |
| Maximum Speed | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 | 3000 | 3000 | 3000 | 2000 | 2000 | |
| All(SNP1NN,SKP1NN) | ||||||||||||
| Weight | kg | 1.02 | 1.05 | 1.09 | 1.11 | 1.14 | 1.18 | 1.20 | 1.30 | 1.39 | 1.55 | 1.65 |
| Moment of inertia of rotating components |
x 10-6 kg*m2 |
3.2 | 3.7 | 4.4 | 5.1 | 5.7 | 6.4 | 7.1 | 9.3 | 11.4 | 14.6 | 17.1 |
| Theoretical flow at maximum speed |
l/min | 4.72 | 6.28 | 8.36 | 10.48 | 12.56 | 14.64 | 12.57 | 17.67 | 22.77 | 19.88 | 24 |
SKP1NN is a special version of the SNP1NN.It is designed to accommodate an SAE 9T 20/40 DP tooth splined shaft for higher torque applications.
Danfoss Group 1 Pump Displacement:
Use these formula to determine the nominal pump size for a specific application:
| Vg | Displacement per rev. | cm3/rev[in3/rev] |
| pHD | Outlet pressure | bar[psi] |
| pND | Inlet pressure | bar[psi] |
| ∆p | pHD – pND | bar[psi] |
| n | Speed | min-1(rpm) |
| ηv | Volumetric efficiency | |
| ηm | Mechanical(torque)efficiency | |
| ηt | Overall efficiency(ηv*ηm) |
Common Applications:
Turf and Garden maintenance equipment
Mini-excavators and Skid Steers
Aerial Lifts and Platforms
Hydraulic Power Packs
Forklifts
Our SNP1NN series gear pump replacement supports extensive customization options, including displacement, rotation direction, mounting flange, shaft, port, integrated valves, seals, materials and pressure&speed to meet diverse hydraulic system requirements.
| Category | Customizable Items |
| Displacement | Standard and non‑standard displacement (cc/rev) |
| Rotation Direction | Clockwise (R), counterclockwise (L), bidirectional |
| Mounting Flange | SAE, European standard, custom flange dimensions & mounting patterns |
| Shaft | Keyed shaft, spline shaft (SAE/ISO/DIN), custom diameter, length, material & hardness |
| Port Configuration | Side/rear ports; SAE, BSPP, BSPT, NPT threads; custom port orientation & size |
| Integrated Valves | Relief valve, check valve, flow control valve, combined valve packages |
| Seals | NBR, Viton, EPDM and other materials for different fluids & temperatures |
| Materials | Aluminum housing, alloy housing; steel gears with custom heat treatment; bushings |
| Pressure & Speed | Customized rated pressure and maximum speed |
| Assembly Form | Single pump, tandem / multi‑pump assemblies, custom intermediate flanges |
| Surface & Marking | Special coating, corrosion resistance treatment, custom labeling & logo |
Our replacement gear pump for the Danfoss SNP1NN series gear pump are 1:1 interchangeable alternatives designed to match the original in dimensions, performance, and installation interface. We guarantee the following to ensure stable operation and minimal risk for your equipment:
Full dimensional interchangeability:Mounting flange, shaft size, port position, and overall envelope dimensions are strictly consistent with the original SNP1NN series gear pump. No modification to your equipment or piping is required, enabling direct plugandplay replacement.
Performance matching with OEM standards:Displacement, pressure rating, speed range, volumetric efficiency, and noise level meet or exceed the technical specifications of the original pump, ensuring consistent hydraulic system output and response.
High strength structural design:
Gears, shafts, and bushings adopt precision grinding and heattreatment processes consistent with industrial standards. The pump features strong wear resistance, low friction, and long service life under continuous working conditions.
Stable sealing performance:High quality NBR / FKM seals are used to ensure reliable sealing under different oil types, temperatures, and pressure conditions, effectively preventing leakage and extending maintenance intervals.
Strict factory inspection:Each pump undergoes full process testing including pressure test, flow test, noise test, and durability verification. Only products that pass all inspections are delivered.
Application compatibility guarantee:The replacement pump is suitable for the same working conditions as the original SNP1NN series, including construction machinery, agricultural equipment, industrial hydraulic units, and material handling systems.
After-sales quality commitment:We provide a clear warranty period. During the warranty, any failure caused by material or manufacturing defects will be repaired or replaced free of charge, reducing your downtime and maintenance cost.
