Customizable Danfoss Group 2 Flex Pump Replacement | Modular Hydraulic Gear Pump

Pump Type	External Gear Pump
Displacement Range	Min 3.9cc/rev, Max 25.2cc/rev
Continuous Pressure	Up to 250 bar[3625 psi]
Speed	Up to 4000 min^-1(rpm)
Material	Aluminum Alloy
Mounting Type	Flange Mount
Rotation	Clockwise ,Counterclockwise
Key Features	Flexible assembly, multi-link configuration
OEM Manufactured Compatibility	Danfoss
MOQ	10 Pcs

We offer high-quality direct replacement gear pumps for Danfoss Group 2 Flex Pump (SNP2, SKP2, SHHP2) series, engineered to match OEM specifications in displacement (3.9–25.2 cm³/rev), mounting flanges (SAE A/B, German/European), shaft types, port configurations, and seal materials. Designed as a drop-in solution for maintenance, repair, and retrofit, our replacements ensure identical fit, pressure rating, and efficiency for tractors, forklifts, excavators, and industrial hydraulic systems. Benefit from competitive pricing, short lead times, and full customization—keep your equipment running without OEM lead-time delays.

High-quality replacement for Danfoss Group 2 flex pumps. Direct fit, same mounting and performance, ideal for maintenance and repair in mobile and industrial hydraulic systems.

Group 2 Flex Pump Features :

Modular, flexible design for quick customization of multi-pump configurations
Compact, lightweight aluminum housing for space-saving installation
High efficiency and low noise operation ideal for mobile hydraulic systems
Continuous working pressure up to 250 bar to handle heavy-duty applications
Fixed displacement design with stable, consistent flow output
Rugged construction for extended service life and minimal maintenance requirements
Wide range of shaft, flange and port options for broad system compatibility
Pre-configurable single, tandem, triple or quadruple pump setups
Drop-in interchangeability with Danfoss Group 2 Flex (SNP2/SKP2/SHHP2) OEM pumps
Customizable seal materials to suit diverse fluid and temperature conditions

Group 2 Flex Pump Displacements:

Group 2 Flex Pump Technical Data:

Frame Size		4	6	8	11	14	17	19	22	25
Displacement	cm³/rev [in³/rev]	3.9	6.0	8.4	10.8	14.4	16.8	19.2	22.8	25.2
Displacement	cm³/rev [in³/rev]	[0.24]	[0.37]	[0.51]	[0.66]	[0.88]	[1.02]	[1.17]	[1.39]	[1.54]
SKP2
Peak pressure	bar[psi]	280	280	280	280	280	280	260	230	200
Peak pressure		[4060]	[4060]	[4060]	[4060]	[4060]	[4060]	[3770]	[3335]	[2900]
Rated pressure		250	250	250	250	250	250	240	210	190
Rated pressure		[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
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 rotation 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 rotation 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)

Group 2 Flex Pump Common Applications:

The Group 2 Flex pump is a modular, highly customizable hydraulic pump ideal for mobile and industrial systems where flexible configuration, reliable high-pressure performance, and compact installation are critical. Typical applications include:

Turf care & landscaping equipment: Ride-on lawn mowers, utility vehicles, and small turf care machinery
Material handling: Aerial work platforms, small forklifts, compact hydraulic lifts, and stackers
Mobile construction machinery: Mini excavators, skid-steer loaders, compactors, and utility vehicle hydraulic controls
Agricultural equipment: Compact tractors, small harvesters, precision sprayers, and fertilizer spreaders
Industrial machinery: Hydraulic power units, small injection molding machines, precision presses, and machine tool hydraulics
Waste management: Small compactors, portable recycling equipment, and compact transport vehicle hydraulics
Marine & offshore: Small deck machinery, auxiliary hydraulic power units, and compact marine hydraulic systems
Specialty vehicles: Sweepers, road maintenance vehicles, and small utility trucks
Forestry equipment: Small wood chippers, compact forestry loaders, and utility forestry machinery
Mining & quarrying: Compact utility vehicles, small hydraulic power packs, and auxiliary mining equipment

The Danfoss Group 2 Flex pump is fully modular and customizable to fit your hydraulic system.

Category	Customizable Item	Available Options
Pump Configuration	Number of Pump Sections	Single pump, Tandem (2-section), Triple (3-section), Quadruple (4-section)
Pump Configuration	Pump Model Series	SNP2 (Standard), SKP2 (Standard), SHHP2 (Low Noise)
Displacement	Displacement per Section	3.9, 6.0, 8.0, 11, 14, 17, 19, 22, 25.2 cm³/rev
Mounting	Front Mounting Flange	SAE A, SAE B, German 2‑bolt, German 4‑bolt, European standard, No flange (for middle sections)
Drive Shaft	Shaft Type	Parallel keyed shaft, Tapered shaft, External splined shaft
Drive Shaft	Rotation Direction	Clockwise (R), Counterclockwise (L)
Ports	Inlet & Outlet Port Type	Metric, BSPP, SAE O‑ring ports
Ports	Port Position	Side ports, Rear ports
Sealing	Shaft Seal Material	NBR (standard), FKM / Viton (high temp)
Valves (Optional)	Built-in Valves	Pressure relief valve, Check valve, Flow control valve, Load sensing valve
Assembly	Intermediate Connector	Intermediate flangeless connection for multi-section pumps
Special Versions	Application Adaptation	Customized for tractors, forklifts, construction machinery, agricultural equipment

Please tell us your displacement, mounting flange, shaft type and application, we will provide the exact Danfoss matching model.

We supply high-performance replacement hydraulic gear pumps for Danfoss Group 2 Flex pump (SNP2/SKP2/SHHP2 series), with full modular customization options, strict quality control, and reliable after-sales service to support your flexible hydraulic system demands.

Every Group 2 Flex pump OEM replacement is produced in line with international hydraulic standards and certified under ISO 9001 quality management system, with CE certification and RoHS compliance for global market application. Each unit is 100% tested for pressure, flow, leakage, noise and dimensional accuracy before delivery, ensuring stable performance, low noise, high efficiency and direct drop-in replacement without modification, while matching the modular multi-pump configuration of the original design.

12-month warranty against manufacturing defects
Professional technical support for modular configuration and model selection
Fast response to troubleshooting and after-sales inquiries
On-time delivery and reliable global shipping service
Flexible MOQ and customized labeling for distributors and importers
Customizable flange, shaft, port and seal options to match system requirements

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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