Steimel SF 4/80 RD Hydraulic gear pump

3 week ago

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4 year

Product details

Product Overview

The Steimel SF 4/80 RD Hydraulic gear pump is a premium German-manufactured external rotary displacement pump, specially engineered to serve as the core power supply component in a complete industrial hydraulic system. As a heavy-duty Hydraulic gear pump from Steimel’s classic SF series, it delivers stable volumetric oil delivery to sustain the continuous operation of the whole hydraulic system, widely adopted for auxiliary pressure supply, centralized lubrication and low-pressure hydraulic drive in heavy machinery.

Model Code Definition

- SF: Standard fluid & lubrication pump series, the foundational model of Steimel’s industrial Hydraulic gear pump lineup

- 4: Frame size No.4, heavy-duty pump housing specification

- 80: Theoretical displacement: 80 cm³/rev

- RD: R = Right-hand rotation (clockwise from shaft end view); D = Standard flange & port layout for seamless installation into a standard hydraulic system

Core Technical Parameters

1. Displacement: 80 cc/rev

2. Rated speed: 600–1800 rpm (matching 1450 rpm asynchronous motor for mainstream hydraulic system configuration)

3. Practical flow @1450rpm: 108–112 L/min

4. Continuous working pressure: 16 bar; Peak intermittent pressure: 25 bar, perfectly matching the pressure requirement of medium-low pressure hydraulic system

5. Applicable medium: Hydraulic oil, gear lubricant, diesel fuel, heat transfer oil (clean lubricative fluids without solid impurities)

6. Viscosity adaptability: 5–50000 mm²/s

7. Operating temperature: -40℃ ~ +250℃

8. Port standard: SAE 2 inch flange interface, easy piping connection for integrated hydraulic system

Structural & Performance Advantages

This Steimel SF 4/80 RD Hydraulic gear pump adopts EN-GJL-250 cast iron pump body and 16MnCrS5 carburized alloy steel precision gears, featuring automatic axial clearance compensation to reduce internal leakage. It minimizes flow pulsation and running noise, ensuring long-term stable pressure output for the entire hydraulic system. Multiple sealing options (NBR standard, optional FKM/PTFE high-temperature seals) expand its compatibility with diverse working conditions of different hydraulic system setups.

Application Scenarios

Integrated into the overall hydraulic system, this Hydraulic gear pump is commonly applied in:

- Large reducer & gearbox lubrication hydraulic systems

- Hydraulic oil station supplementary pumping hydraulic system for metallurgy, mining and machine tools

- Marine equipment, diesel generator fuel & auxiliary hydraulic system

- Boiler heat transfer oil delivery and engineering machinery low-pressure hydraulic system

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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Main Product: hydraulic motor, gear box, hydraulic pump , hydraulic valve , hydraulic winch, hydraulic system

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