Product Dimensions
Detailed Specifications
| Pump Type | External-tooth fixed-displacement gear pump |
| Combined displacement | 22 cm³/rev |
| Peak pressure | 300 bar |
| Maximum speed | 2090 rpm |
| Volumetric efficiency | ≥94%, ≥90% under high-pressure conditions |
Other Products
Product Advantage
1.High Efficiency and Energy Savings: Pressure-dependent gap sealing combined with high-precision manufacturing ensures high volumetric efficiency, reducing system energy consumption and heat loss.
2.Heavy-Duty Durability: The sliding bearing design withstands frequent load shocks, offering a long service life and suitability for continuous operation.
3.Stable and Quiet Operation: Precision gear meshing minimizes flow pulsation and noise, enhancing system operational stability.
4.High Adaptability: Compatible with SAE/ISO standard interfaces, flexible installation, and suitable for use as a single pump or in multi-pump configurations.
5.Reliable Quality: Mass-produced by Rexroth with high consistency, suitable for demanding applications such as industrial and construction machinery.
Company Profile
As a provider of hydraulic system solutions with 15 years of technical expertise, we specialize in genuine imported hydraulic products from internationally renowned brands such as Rexroth (Germany) and Danfoss (Denmark). Our main product lines include hydraulic pumps, hydraulic motors, gearboxes, hydraulic valves, and various hydraulic components. The company operates a 3,000-square-meter facility featuring modern office and warehouse space, employs 75 staff members, and maintains a stock inventory valued at over 20 million RMB. We operate an independent precision machining and repair workshop equipped with professional machining equipment, hydraulic pump test benches, and a full set of repair tools valued at over one million RMB. In 2025, the company's total domestic and international trade volume reached 85 million RMB. Leveraging our efficient production capacity and professional service capabilities, we are able to provide customers with comprehensive hydraulic product solutions.
Frequently Asked Questions
Is this a fixed or variable displacement pump?
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It is a fixed displacement external gear pump, with stable output and no flow adjustment.
What applications is this pump used for?
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Mainly used in construction machinery, agricultural equipment, forklifts, industrial hydraulic stations, presses and mobile hydraulic systems.
How to extend service life?
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Keep oil clean, avoid dry running, maintain rated pressure and proper lubrication to protect gears and bearings.
What is the working pressure range?
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Rated pressure: 250 bar;Max intermittent pressure: 280 bar;Peak pressure: 300 bar
What shaft and flange standards are used?
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It uses SAE standard spline shaft and SAE mounting flange, widely compatible with hydraulic power units.
1. Key Specifications
Order Number: 0510725102
Model: AZPF-11-022RRR20KB-S0081
Brand: Bosch Rexroth
Type: External gear pump with fixed displacement (fixed displacement, no flow regulation)
Displacement: 22 cm³/rev (the "022" in the model number indicates displacement)
Rotation Direction: Clockwise (viewed from the drive shaft end), confirmed by the "RRR" in the model number
2. Key Performance Parameters
Rated Continuous Pressure: 250 bar
Maximum Intermittent Pressure: 280 bar
Peak pressure: 300 bar
Maximum speed: 2090 rpm
Volumetric efficiency: ≥94%, ≥90% under high-pressure conditions; low energy consumption and minimal heat generation
Bearing configuration: Heavy-duty sliding bearings, suitable for high radial/axial loads; wear-resistant and durable
Seal material: NBR (nitrile rubber), suitable for standard operating conditions
Suitable media: HL, HLP mineral hydraulic oils; HEES, HEPR biodegradable hydraulic oils
Operating temperature: Ambient temperature -30°C to +80°C (NBR seals)
Pump body material: Aluminum alloy, lightweight and structurally robust
3. Structure and Interface Specifications
Drive Shaft: SAE J744 16-4 standard, 9 teeth, 16/32DP spline shaft
Mounting Flange: SAE J744 82-2 (Type A), 2-bolt flange connection
Port Connection: ISO 8434-1 standard square flange, secure connection with excellent sealing performance
Gear Design: Precision involute gears, low flow pulsation, and low operating noise
Surface Treatment: Phosphating treatment, prevents flash rust during transport and enhances corrosion resistance
4. Typical Applications
Industrial Equipment: Injection molding machines, hydraulic power units, machine tools, metallurgical equipment, presses
Mobile Machinery: Excavators, loaders, forklifts, agricultural machinery, sanitation machinery
Others: Medium- and high-pressure hydraulic systems in conveying equipment, construction machinery power units, etc.
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