High Performance SNP2NN Gear Pump | OEM Replacement & Reliable Quality

Pump Type	External Gear Pump(Group 2)
Displacement	Min 3.9cc/rev, Max 25.2cc/rev
Continuous Pressure	Up to 250 bar
Speed	Up to 4000 min-1(rpm)
Material	Aluminum Alloy
Mounting Type	SAE,DIN and European standard mounting flange
Rotation	Clockwise ,Counterclockwise
Key Features	Compact,Lightweight
OEM Manufactured Compatibility	Sauer Danfoss
MOQ	10 Pcs

Danfoss SNP2NN gear pump is a robust, fixed-displacement hydraulic gear pump engineered for industrial and mobile applications. Featuring a pressure-balanced design for maximum efficiency, it delivers continuous pressure up to 250 bar (3625 psi) and speeds up to 4,000 rpm. Available in 9 displacements from 3.9 to 25.2 cc/rev, it supports SAE, DIN, and European standard flanges/shafts, with a compact, lightweight build and quiet operation. Optional integral relief valve and multi-pump configurations with SNP1NN/SNP3NN enhance versatility.

Danfoss high performance SNP2NN gear pumps are fixed displacement pumps which consist of the pump housing, drive gear, driven gear, DU bushings, rear cover and front flange, shaft seal and inner/ outerl seals, as shown in the following image. The pressure balanced design of the pumps provides high efficiency for the entire series. The SNP2NN gear pump accommodates SAE 9-tooth and the SKP2NN is a special version of the SNP2NN. It is designed to accommodate an SAE 11T 16/32 DP tooth splined shaft for higher torque applications.

SNP2NN Gear Pump Features and Benefits:

Wide range of displacement from 3.9 to 25.2 cm³/rev[From 0.24 to 1.54 in³/rev]
Continuous pressure rating up to 250 bar [3625 psi]
Speeds up to 4000 min-1(rpm)
SAE,DIN and European standard mounting flanges and shafts
Compact,lightweight
Multiple pump configurations in combination with SNP1NN,SNP2NN,SKP2NN and SNP3NN
Quite operation
Available with integral relief valve

SNP2NN Gear Pump Technical Data:

Frame Size		4	6	8	11	14	17	19	22	25
Displacement	cm³/rev	3.9	6.0	8.4	10.8	14.4	16.8	19.2	22.8	25.2
Displacement	[in³/rev]	[0.24]	[0.37]	[0.51]	[0.66]	[0.88]	[1.02]	[1.17]	[1.39]	[1.54]
SNP2NN
Peak pressure	bar [psi]	280	280	280	280	280	280	230	200	175
Peak pressure	bar [psi]	[4060]	[4060]	[4060]	[4060]	[4060]	[4060]	[3335]	[2900]	[2638]
Rated pressure	bar [psi]	250	250	250	250	250	250	210	180	160
Rated pressure	bar [psi]	[3625]	[3625]	[3625]	[3625]	[3625]	[3625]	[3045]	[2610]	[2320]
Minimum speed at 0-100 bar	min^-1 (rpm)	600	600	600	500	500	500	500	500	500
Minimum speed at 100-180 bar		1200	1200	1000	800	750	750	700	700	700
Min. speed at 180 bar to rated pressure		1400	1400	1400	1200	1000	1000	1000	800	–
Maximum speed		4000	4000	4000	4000	3500	3000	3000	3000	3000
SKP2NN
Peak pressure	bar [psi]	280	280	280	280	280	280	260	230	200
Peak pressure	bar [psi]	[4060]	[4060]	[4060]	[4060]	[4060]	[4060]	[3770]	[3335]	[2900]
Rated pressure	bar [psi]	250	250	250	250	250	250	240	210	190
Rated pressure	bar [psi]	[3625]	[3625]	[3625]	[3625]	[3625]	[3625]	[3480]	[3045]	[2755]
Minimum speed at 0-100 bar	min^-1 (rpm)	600	600	600	500	500	500	500	500	500
Minimum speed at 100-180 bar		1200	1200	1000	800	750	750	700	700	700
Min. speed at 180 bar to rated pressure		1400	1400	1400	1200	1000	1000	1000	800	800
Maximum speed		4000	4000	4000	4000	3500	3000	3000	3000	3000
Both(SNP2NN,SKP2NN)
Weight	kg [lb]	2.3	2.4	2.5	2.7	2.9	3.0	3.1	3.2	3.3
Weight	kg [lb]	[5.1]	[5.3]	[5.5]	[5.8]	[6.3]	[6.5]	[6.7]	[7.0]	[7.3]
Moment of inertia of rotating components	x 10⁻⁶ kg·m² [x 10⁻⁶ lb·ft²]	21.3	26.5	32.4	38.4	47.3	53.3	59.2	68.1	74.1
Moment of inertia of rotating components	x 10⁻⁶ kg·m² [x 10⁻⁶ lb·ft²]	[505]	[629]	[769]	[911]	[1122]	[1265]	[1405]	[1616]	[1758]
Theoretical flow at maximum speed	l/min [US gal/min]	15.6	24.0	33.6	43.2	50.4	50.4	57.6	68.4	75.6
Theoretical flow at maximum speed	l/min [US gal/min]	[4.1]	[6.3]	[8.9]	[11.4]	[13.3]	[13.3]	[15.2]	[18.0]	[20.0]

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)
η_v	Volumetric efficiency
η_m	Mechanical(torque)efficiency
η_t	Overall efficiency(ηv*ηm)

SNP2NN Gear Pump Common Applications:

Small vehicles, such as aerial lifts, greens and fairway mowers and electric forklifts. These needs are served by the pumps in the SKP2NN range with integral valves and pressure balanced design for high efficiency, and extruded aluminum bodies for high strength.
Medium and large off-highway vehicles, like tractors, backhoe loaders, dumpers, and telescopic handlers, we offer the SNP2NN gear pump. Many combinations of the pumps mentioned are available as multiple units made to fit any need Danfossl provides standard pumps for use in industrial applications, including power packs.

Our SNP2NN gear pump oem 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 & Performance	Geometric Displacement: 3.9, 6.0, 8.4, 10.8, 14.4, 16.8, 19.2, 22.8, 25.2 cc/rev
	Rotation Direction: Clockwise (R), Counterclockwise (L)
	Pressure Rating: Continuous up to 250 bar; Intermittent up to 270 bar; Peak up to 290 bar (customizable set points)
	Max Speed: Up to 4000 rpm (application‑adjustable)
Mounting Flange	Standard Flanges: SAE B, European 4‑bolt (36.5 mm pilot), DIN standard
Mounting Flange	Flange Type: Fixed mounting flanges (custom pilot diameter/bolt pattern available for OEM)
Shaft Types	SAE splined (9‑tooth standard; 11‑tooth optional for high‑torque)
	Tapered 1:8 with parallel key (DIN standard)
	European splined shafts
Shaft Length	Standard
Shaft Length	custom extended lengths
Shaft Seal	Nitrile (NBR) standard
	Fluorocarbon (FKM) for high‑temp
	PTFE for chemical resistance
Port & Connection	Port Types: BSPP (G), SAE O‑ring boss, NPT, European flanged ports
	Port Location: Side ports, Rear ports (reversible for installation flexibility)
	Port Size: Customized to match system piping (1/4″–1″ standard; larger on request)
Integrated Valves	Integral Relief Valve: Built‑in pressure relief (custom set pressure: 50–250 bar)
	Check Valve: Optional anti‑backflow check valve (integrated or external)
	Priority Valve: Custom flow‑priority valves for mobile hydraulics
Material & Durability	Housing: High‑strength aluminum alloy (standard); Cast iron (optional for heavy‑duty)
	Gears: Case‑hardened steel (standard); Custom surface coatings for wear resistance
	Bushings: Steel (standard); PTFE-coated for extreme conditions
Multi‑Pump Assembly	Combination: Stackable with SNP1NN, SNP2NN, SNP3NN for multi-circuit systems
Multi‑Pump Assembly	Modular Design: Compact / shortened versions for space constrained setups
Special Application Upgrades	Seal Kits: Custom seals for low‑temperature (down to -40°C) or high‑temperature (up to 120°C)
	Corrosion Protection: Anti-corrosion coatings for marine/harsh environments
	Certifications: ATEX, CE, RoHS compliance for hazardous areas (custom certification available)

Our SNP2NN gear pump oem replacement is manufactured under strict quality control, with full compliance to ISO 9001, CE, JB/T 7041, and ISO 4409 standards. Every unit undergoes 100% performance testing (pressure, flow, noise, durability) before shipment, ensuring direct interchangeability with OEM specifications. Built with premium materials and precision machining, it delivers stable flow, high volumetric efficiency, and reliable operation in industrial and mobile applications.We provide a 12-month warranty against manufacturing defects. Our after-sales team offers prompt technical support, troubleshooting, and spare parts supply to minimize downtime.

Hydraulic Gear Pump – FAQ

What is an external gear pump?

An external gear pump is a positive-displacement hydraulic pump that uses two externally meshing gears to deliver stable hydraulic flow.

What applications are external gear pumps commonly used for?

External gear pumps are widely used in construction machinery, agricultural equipment, industrial hydraulic systems, material handling, and mobile hydraulics.

What pressure range can an external gear pump handle?

Most external gear pumps operate at rated pressures up to 200–250 bar, with higher peak pressure depending on design and materials.

What displacement ranges are available?

External gear pumps are available in a wide range of displacements, typically from 1 cc/rev to over 100 cc/rev, depending on series and configuration.

What speed range is suitable for external gear pumps?

Typical operating speed ranges from 500 to 3000 RPM, depending on load conditions, oil viscosity, and pump design.

Can external gear pumps be customized?

Yes. External gear pumps can be customized in terms of displacement, pressure rating, shaft type, mounting flange, port size, and rotation direction.

Are external gear pumps interchangeable with OEM brands like Rexroth?

Many external gear pumps are designed to be dimensionally interchangeable with major OEM brands such as Rexroth, Danfoss, Eaton, and Parker.

What materials are used for external gear pumps?

Common materials include aluminum alloy housings for lightweight applications and cast iron housings for higher pressure and heavy-duty use.

What hydraulic fluids can be used?

External gear pumps are compatible with mineral hydraulic oils, HLP/HV oils, and other standard industrial hydraulic fluids.

How do I select the right external gear pump?

Selection depends on pressure rating, displacement, speed range, application requirements, and installation dimensions. Contact our engineers for technical support.

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