SNP Hydraulic Gear Pump: Features, Specifications and Applications

Hydraulic gear pumps supply fixed-displacement, positive flow for steady fluid power in mobile and industrial systems. The SNP Hydraulic Gear Pump series belongs to the Danfoss GearMe family (formerly Sauer-Danfoss and Turolla). It includes solid aluminum external gear pumps in SNP1NN (Group 1), SNP2NN (Group 2), and SNP3NN (Group 3) setups. These pumps stress small design, pressure-balanced output, quiet running, and wide setup choices. Thus, they suit original equipment manufacturing and aftermarket swaps in tough settings.

Key Features of the SNP Hydraulic Gear Pump

Built for strong lasting and work, the SNP Hydraulic Gear Pump has tough extruded aluminum bodies, covers, and flanges. These mix light build with good frame strength. Hardened, treated steel gears offer fine protection from wear, scrapes, and dirt.

Pressure-balanced plates improve inside sealing. They cut leaks and keep high volume output over run pressures. Careful gear tooth shapes and close fits bring low-noise running. This lessens shakes and sound effects in user-aware tasks.

Setup range backs varied system wants. It covers one-way or two-way skill, clockwise or counterclockwise turns, several shaft plans (tapered 1:5 or 1:8, parallel keyed, SAE 9-tooth or 11-tooth splined for high-torque SKP types), mount flanges (SAE A/B/C, European four-bolt, DIN, German PTO), and port kinds (flanged European/German rules, SAE O-ring boss, threaded). Tandem or multi-pump groups join SNP1NN, SNP2NN, and SNP3NN for better flow hold in complex paths.

Pressure-Balanced Efficiency Design

Better balance plates cut side and round loads. They boost sealing and lower power waste.

Low-Noise and Low-Vibration Operation

Tuned meshing form and even build hold back pulse for even, quieter work.

Integral Valve and Customization Options

Some setups have built-in relief valves or priority flow splitters. These ease hydraulic path layout.

Detailed Specifications of the SNP Hydraulic Gear Pump

The SNP Hydraulic Gear Pump series gives stepped displacements with high pressure and speed marks fit to task needs.

SNP1NN Series (Group 1) Specifications

• Displacement range: 1.2 to 12.0 cc/rev
• Rated (continuous) pressure: Up to 250 bar (3625 psi)
• Peak pressure: Up to 270 bar (3915 psi)
• Maximum speed: Up to 4000 rpm
• Minimum speed: Typically 800 rpm at rated pressure
• Theoretical flow: Directly proportional to displacement and speed
• Weight: 1.5–3 kg
• Construction: Pressure-balanced aluminum housing for high efficiency

SNP2NN Series (Group 2) Specifications

• Displacement range: 3.9 to 25.2 cc/rev (sizes 4.0 to 25)
• Rated pressure: Up to 250 bar (3625 psi) for smaller sizes, de-rated progressively for larger displacements
• Peak pressure: Up to 280 bar (4060 psi) in smaller sizes
• Maximum speed: Up to 4000 rpm (smaller sizes), down to 3000 rpm
• Minimum speed: 500–1400 rpm depending on pressure load
• Theoretical flow at max speed: Up to 75.6 l/min (20 US gal/min) for 25 cc/rev
• Weight: 2.3–3.3 kg
• Variants: SKP2NN for higher torque with SAE 11-tooth spline

SNP3NN Series (Group 3) Specifications

• Displacement range: 22.1 to 88.2 cc/rev (sizes 022 to 090)
• Rated pressure: Up to 250 bar (3625 psi) for smaller sizes, tapering to 150 bar for largest displacements
• Peak pressure: Up to 270 bar (3910 psi) for sizes up to 044, lower for larger
• Maximum speed: 3000 rpm (smaller sizes), 2500 rpm (larger)
• Minimum speed: 600–800 rpm
• Theoretical flow at max speed: Up to 220.5 l/min (58.3 US gal/min) for 090
• Weight: 6.8–8.9 kg
• Features: Pressure-balance plates standard, full tandem compatibility

Volume output usually goes over 90% under best thickness (15–40 cSt). It shows straight flow reply and works with mineral, synthetic, and break-down hydraulic fluids.

Industrial Applications of the SNP Hydraulic Gear Pump

The SNP Hydraulic Gear Pump runs main jobs over heavy work areas. In build gear—excavators, backhoe loaders, skid steers, and dump trucks—it powers hydraulic cylinders for exact boom, arm, bucket, and steering tasks under high repeat loads.

Farm machines, like tractors, combine harvesters, sprayers, and water systems, use the pump for hydrostatic send, tool start, and steering in rough, dusty spots.

Material handling cars such as forklifts, telehandlers, cranes, and air work stands use its small space and torque skill for lift, tilt, and drive jobs.

Industrial tasks reach to injection molding machines, hydraulic presses, conveyors, machine tools, and extra fan drives. There, steady high-pressure flow makes sure process rightness and trust.

Mobile and Off-Highway Equipment

It leads in telescopic handlers, loaders, and tractors for main and extra paths.

Stationary Industrial Systems

It fits presses, molding gear, and power packs that need even work.

Design and Engineering Advantages of the SNP Hydraulic Gear Pump

Strong power pack comes from aluminum build and tuned loads. This lets small setups with big yield. Dirt handling gains from tough gears and plain design. It beats vane or piston pumps in shock-full mobile duties.

Wide fluid match and tandem picks grow range. Built-in valves cut outer parts. And money-save making and fix ease bring long-term worth.

Superior Volumetric and Mechanical Efficiency

Small inside leaks and rub waste keep work over wide run spans.

Durable Material and Construction

Aluminum shells with steel gears make sure wear fight and long service time.

Installation and System Integration Considerations for the SNP Hydraulic Gear Pump

Right add needs true shaft match to dodge bend. Inlet filter (10–25 microns full) and good suction head stop cavitation chances.

Port match (flanged best for full pressure mark; threaded may need lower rate) makes sure no-leak running. System relief valves guard from over loads.

Standard SAE, DIN, and European links let smooth swaps for first Danfoss/Turolla units. Side mount helps self-start and drain. Extra pads ease multi-pump setups.

Mounting and Interface Standards

Fit flanges and shafts make easy OEM and change setups.

System Safeguards

Filter, relief guard, and thickness check best set safety and lasting.

Performance Optimization and Efficiency Insights

The SNP Hydraulic Gear Pump does well with small leaks and even design for ongoing high output. Low flow wave backs even part reply and cut system shakes.

Heat and thickness handling (best 15–40 cSt) stops output falls. In change-speed drives, match flow fits want. This lowers power use.

Firm sealing and gear toughening let high-repeat lasting with steady yield over time.

Stable Flow and Pressure Characteristics

Straight work cuts pulse for exact hydraulic lead.

Energy-Saving Advantages

Cut waste boosts full system output in hard repeats.

Conclusion

The SNP Hydraulic Gear Pump joins better aluminum work, wide setup, and tested high-pressure trust to meet now hydraulic tests over varied areas.

POOCCA, as a manufacturer, supplier, and factory since 2006, produces and supplies the SNP Hydraulic Gear Pump series alongside original Danfoss/Turolla equivalents. With in-house R&D, manufacturing, global distribution, factory-direct pricing, rapid delivery, and a 12-month guarantee, POOCCA delivers tailored, high-quality hydraulic solutions.

FAQ

What are the core pressure ratings for the SNP Hydraulic Gear Pump series?

SNP1NN and SNP2NN support rated pressures up to 250 bar (peaks 270–280 bar); SNP3NN reaches 250 bar rated (peaks 270 bar for smaller sizes, tapering for larger displacements).

What displacement options are available in the SNP Hydraulic Gear Pump lineup?

SNP1NN: 1.2–12 cc/rev; SNP2NN: 3.9–25.2 cc/rev; SNP3NN: 22.1–88.2 cc/rev, covering extensive flow requirements.

What design elements contribute to the low noise of the SNP Hydraulic Gear Pump?

Precision gear profiles, pressure balancing, and optimized materials effectively reduce vibration and pulsation.

Partner with POOCCA as Your Reliable Supplier for SNP Hydraulic Gear Pumps

Business seeking dependable SNP Hydraulic Gear Pump solutions benefit from POOCCA’s direct factory production, customization capabilities, and competitive advantages. Contact the team for detailed model specifications, volume pricing, technical application support, or system integration guidance. Email sales@kamchau.com or call +86 18927498997 to discuss requirements and secure prompt global delivery from a trusted manufacturing partner. Elevate hydraulic system performance with proven quality and reliability.