A7V20 A7V28 A7V40 A7V55 A7V58 A7V80 A7V107 A7V117 A7V160 A7V250 A7V355 A7V500
Green Hydraulic
A7V20 A7V28 A7V40 A7V55 A7V58 A7V80 A7V107 A7V117 A7V160 A7V250 A7V355 A7V500
Standard export carton/plywood case
YES
ISO9001 CE
1 set
| Availability: | |
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Product Description

Full range of displacement options covers small to large flow demands for mainstream heavy machinery.
Reinforced cylinder block, piston and slipper friction pairs deliver outstanding compression resistance and abrasion resistance, extending pump service life greatly.
Low flow pulsation and low running noise, stable performance during frequent load fluctuation and startup-shutdown cycles.
Strict factory pressure testing for each finished product; anti-rust treatment plus export-standard wooden case packaging prevents damage during long-distance sea transportation.
Customizable control modes, rotation directions and painting colors, with OEM logo marking service available for global distributors.
Specifications
Pump Type: Bent-axis variable displacement axial piston pump
Displacement options: 20, 28, 40, 55, 58, 80, 107, 117, 160, 250, 355, 500 mL/r
Control modes: DR, DRS, DRG, LR, LD, MA, HA (multiple control forms optional)
Rated working pressure: 32 MPa (4641 PSI)
Maximum peak pressure: 40 MPa (5802 PSI)
Allowable pressure shock resistance: Stable against instantaneous pressure surge under heavy load
Volumetric efficiency ≥ 91% under rated working condition
Total efficiency ≥ 86% in normal working state
Low flow pulsation, low vibration and low running noise
Recommended hydraulic oil: ISO VG46, ISO VG68 anti-wear hydraulic oil
Permissible oil temperature range: -20 ℃ ~ +85 ℃
Oil cleanliness requirement: NAS 8 or higher cleanliness grade
Standard rotation: Clockwise / Counter-clockwise customizable
Rated continuous working speed: 1500–2200 rpm
Maximum instantaneous allowable speed: 2600 rpm
Housing material: High-strength cast iron
Core components: Precision ground cylinder block, piston assembly, slipper and valve plate with wear-resistant treatment
Sealing structure: High-pressure resistant composite rubber seals
Each pump passes strict hydraulic pressure testing before delivery
Surface anti-rust treatment for pump body and internal parts
Packed with moisture-proof film + export solid wooden case for long-distance sea transportation
Applications
Mining Machinery
Main hydraulic power source for coal mining machines, roadheaders, hydraulic supports and underground tunneling equipment, coping with high-pressure and heavy-load underground operating environments.
Construction Machinery
Widely used in excavators, rotary drilling rigs, concrete pump trucks, large loaders and road rollers to supply power for walking, lifting and hydraulic actuating circuits.
Metallurgical & Heavy Industrial Equipment
Applied to hydraulic presses, steel rolling equipment, forging machinery and large hydraulic stations, delivering stable continuous pressure output for long-cycle industrial operation.
Marine & Offshore Machinery
Equipped on ship cranes, marine hydraulic winches and offshore engineering devices to adapt to complex load changes and damp working conditions at sea.
Special Engineering Vehicles
Matching hydraulic drive systems of rescue vehicles, piling machinery and tunnel construction equipment to withstand frequent load impact and variable working demands.

Factory&FAQ
Hydraulic Pump A7V20 A7V28 A7V40 A7V55 A7V58 A7V80 A7V107 A7V117 A7V160 A7V250 A7V355 A7V500 are typically packaged securely to prevent damage during transit. The packaging includes:
Protective Wrapping: To safeguard the pump from environmental damage.
Custom Crates: For larger, heavier pumps, ensuring safe handling.
Documentation: Includes installation, maintenance instructions, and warranty details.
Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.
1. What is the Hydraulic Pump A7V20 A7V28 A7V40 A7V55 A7V58 A7V80 A7V107 A7V117 A7V160 A7V250 A7V355 A7V500 ?
A7V series pumps are classic bent-axis variable displacement axial piston hydraulic pumps , covering complete displacement models: A7V20, A7V28, A7V40, A7V55, A7V58, A7V80, A7V107, A7V117, A7V160, A7V250, A7V355, A7V500 (unit: mL/r).
It is specially developed for open-circuit hydrostatic transmission systems. With multiple optional control modes including constant power, constant pressure and manual control, it can realize stepless flow adjustment under fixed rotating speed. The pump supports a maximum peak pressure up to 40 MPa, featuring compact structure, strong pressure resistance, low vibration and low noise. Widely matched with mining equipment, construction machinery, metallurgical forging devices and marine hydraulic systems, our replacement pumps can achieve full dimensional interchangeability with original Rexroth products while supporting OEM customization services.
3. What is the working pressure range of Hydraulic Pump A7V20 A7V28 A7V40 A7V55 A7V58 A7V80 A7V107 A7V117 A7V160 A7V250 A7V355 A7V500 ?
Continuous rated working pressure: 32 MPa (4641 PSI)
Maximum instantaneous peak pressure: 40 MPa (5802 PSI)
The pump can stably sustain long-term operation under 32 MPa conventional working pressure, and withstand short-time pressure surges up to 40 MPa during equipment startup or load shocks.
4. Can Hydraulic Pump A7V20 A7V28 A7V40 A7V55 A7V58 A7V80 A7V107 A7V117 A7V160 A7V250 A7V355 A7V500 replace other brands?
5. What is the typical speed range of Hydraulic Pump A7V20 A7V28 A7V40 A7V55 A7V58 A7V80 A7V107 A7V117 A7V160 A7V250 A7V355 A7V500 ?
Minimum stable working speed: 500 rpm
Recommended continuous rated working speed: 1500 ~ 2200 rpm (universal safe operating interval for long-term heavy-load operation)
Maximum allowable instantaneous speed:
Small displacement models (A7V20 / 28 / 40 / 55 / 58 / 80): Max short-term speed ≤ 2800 rpm
Medium & large displacement models (A7V107 / 117 /160 /250 /355 /500): Max short-term speed ≤ 2200 rpm ~ 1200 rpm (the larger the displacement, the lower the limit speed)
Practical Advice
6. Do you provide OEM or customized services?
7. How can I get a quotation quickly
Please provide the following details:
Model or displacement
Working pressure
Speed
Quantity
We will reply within 12 hours with a competitive quotation.
Hydraulic Pump A7V20 A7V28 A7V40 A7V55 A7V58 A7V80 A7V107 A7V117 A7V160 A7V250 A7V355 A7V500 are manufactured in compliance with international standards, ensuring high performance and reliability:
ISO 9001: Certified for quality management systems.
CE Certification: Ensures compliance with European safety, health, and environmental protection standards.
RoHS Compliance: Ensures the pump does not contain hazardous materials.
Factory Testing: Every pump is rigorously tested for performance, pressure, and leak integrity before shipping.
1.What's our advantages?
Factory established in 2005;
With a great deal of production experience;
80+ employees become the professional team;
Constant updated ERP system ensure efficiency of work;
Sophisticated equipment ehanced the accuracy of products;
Professional salesmen provide the greast service;
With a large number of famous customers all over the world;
Great after-sales service;
With the long term cooperation with famous logistics and express company in China,provide the better goods service.
Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.
Of course we can. Just send me your logo we can make it for you.
America(40.5%):USA, Canada, Argentina, Brazil
Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.
Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.
Others(5.8%).
The Green hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.
The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.
