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Hydraulic Products
Explore ChangJia high-quality Hydraulic Components
As a hydraulic components manufacturer, ChangJia is committed to delivering customers efficient hydraulic technology solutions and products. The hydraulic orbital motor drives the rotating mechanism, the hydraulic valve controls the direction and pressure of the oil circuit, and the hydraulic pump provides the power oil source. All of these components work together in agricultural machinery, engineering machinery, and automation equipment to ensure the efficient operation of the hydraulic system.
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Hydraulic Motor
Hydraulic orbital motor: compact structure, large torque, high pressure resistance, suitable for rotary drives such as engineering machinery and agricultural equipment,etc. taking into account both high efficiency and durability.
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Hydraulic Valve
Hydraulic valve: As the core control element of the hydraulic system, it adjusts the oil flow direction, pressure and flow rate through the displacement of the valve core to accurately control the movement of the equipment. It is main divided into three categories: directional valve, pressure valve and flow valve. It is widely used in mechanical power switching and precision systems to ensure efficient operation.
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Hydraulic Pump
Hydraulic pump: As the power heart of the hydraulic system, it converts mechanical energy into hydraulic energy and continuously outputs high-pressure oil to drive the actuator. The core types include gear pumps, piston pumps and vane pumps, which support the stable operation of engineering machinery, agricultural machinery and ship systems with high efficiency, pressure resistance and strong adaptability.
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Customized services
Custom Hydraulic Components Services for Diverse Industries
As a custom hydraulic components manufacturer, we focus on the research and development, and manufacturing of hydraulic motors, hydraulic valves, and hydraulic pumps. From standard products to complex systems, we wholeheartedly provide one-to-one hydraulic customization services for customers in the fields of industry, engineering machinery, agriculture, etc. Whether you are facing special working conditions, harsh environments, or pursuing higher energy efficiency, our team of engineers will combine years of industry experience to create exclusive customized services for you.
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Hydraulic Motors
Precision-engineered with customizable oil port dimensions, flange configurations, and paint finishes, these motors offer tailored torque and speed specifications, adaptable mounting options, pressure rating customization, and flow rate optimization to meet diverse industrial requirements.
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Hydraulic Valves
Our precision-engineered valves offer a comprehensive range of customizable solutions to meet exact operational requirements. From custom port configurations (threaded, flanged, or manifold-mounted) tailored for specific installation needs, to valve body materials (stainless steel, cast iron, or lightweight alloys) optimized for corrosion resistance or high-temperature environments, every aspect can be adapted.
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Hydraulic Pumps
Customizable services include flow/pressure adjustments, material selection (e.g., corrosion-resistant alloys), mounting interface modifications, performance optimization (variable speed controls, noise reduction), and specialized designs for extreme temperatures, viscosities, or submersible environments.
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Application scenarios

As a professional custom hydraulic components manufacturer, ChangJia deeply cultivates the core technology of hydraulic, with high-performance components, intelligent systems, and value chain services, to provide global customers with solutions beyond expectations.

Agricultural Machinery
Agricultural Machinery
Construction Machinery
Construction Machinery
Municipal sanitation vehicles
Municipal sanitation vehicles

Agricultural Machinery

Our solution for agricultural machinery prioritizes reliability in extreme conditions. With enhanced sealing to fend off mud, water, and dust, and anti- vibration structures to withstand field bumps, it's compatible with hydraulic pumps, motors, and valves, empowering stable and efficient operation.

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Overseas hot selling product gear pump MF 897147 M92

External gear pump has the advantages of simple and compact structure, small volume, light weight, good processability, low price, strong self suction force, insensitivity to oil pollution, large speed range, ability to withstand impact loads, easy maintenance, and reliable operation.

Construction Machinery

ChangJia firmly focuses on specialization and innovation. We aim to roll outenvironmentally friendly, intelligent, and durable high-end mechanical hydraulic products, powering the development of human society.

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Best Selling Product Hydraulic Piston Pump A4VG56 /A4VSO

Slant disc axial piston variable displacement pump. Applied to closed hydraulic transmission circuits; Short response time. Compact structure; Multiple control methods and integrated functions. Through shaft structure, can be used in series with pumps for tandem pump operation, optimizing hydraulic system integration.

Municipal sanitation vehicles

Our solution for municipal sanitation vehicles focuses on reliability in harsh environments. With enhanced sealing against sewage, oil, and dust, and anti- vibration design to absorb shocks, it's perfectly compatible with hydraulic pumps, motors, and valves, ensuring stable operation and improved efficiency.

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Hot selling hydraulic orbital motor OMR/OMP series

Hydraulic orbital motor adapts the gerolor design.low pressure, high efficiency good performance. Credible design for shaft seal, which can bear high pressure and be used in parallel or in series. Direction of shaft rotation and speed can be controlled easily and smoothly. Linkage shaft specially designed, so it is the long life motor. Best combination of efficiency and economy in medium load applications.Structure is compact easy installation.

Application scenarios

Changjia deeply cultivates the core technology of hydraulic, with high-performance components, intelligent systems and value chain services, to provide global customers with solutions beyond expectations.

Agricultural Machinery
Construction Machinery
Municipal sanitation vehicles

Agricultural Machinery

Our solution for agricultural machinery prioritizes reliability in extreme conditions. With enhanced sealing to fend off mud, water, and dust, and anti - vibration structures to withstand field bumps, it's compatible with hydraulic pumps, motors, and valves, empowering stable and efficient operation.

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Overseas hot selling product gear pump MF 897147 M92

External gear pump has the advantages of simple and compact structure, small volume, light weight, good processability, low price, strong self suction force, insensitivity to oil pollution, large speed range, ability to withstand impact loads, easy maintenance, and reliable operation.

Construction Machinery

Changjia firmly focuses on specialization and innovation. We aim to roll outenvironmentally friendly, intelligent, and durable high - end mechanical hydraulic products, powering the development of human society.

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Best Selling Product Hydraulic Piston Pump A4VG56 /A4VSO

Slant disc axial piston variable displacement pump, Applied to closed hydraulic transmission circuits; Short response time; Compact structure; Multiple control methods and integrated functions; Through shaft structure, can be used in series with pumps.for tandem pump operation, optimizing hydraulic system integration.

Municipal sanitation vehicles

Our solution for municipal sanitation vehicles focuses on reliability in harsh environments. With enhanced sealing against sewage, oil, and dust, and anti - vibration design to absorb shocks, it's perfectly compatible with hydraulic pumps, motors, and valves, ensuring stable operation and improved efficiency.

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Hot selling hydraulic orbital motor OMR/OMP series

Hydraulic orbital motor adapt the gerolor design.low pressure,high efficiency good performance. Credible design for shaft seal ,which can bear high pressure and be used in parallel or in series, Direction of shaft rotation and speed can be controlled easily and smoothly.Linkage shaft specially designed,so it is the long life motor.Best combination of efficiency and economy in medium load applications.Structure is compact easy installation .

About us
Work To Drive Innovation Of Core Hydraulic Components

ChangJia is a global leader in hydraulic technology, integrating R&D, manufacturing, sales, and service to drive innovation and production of core hydraulic components. As a hydraulic components manufacturer, we specializing in high-end hydraulic solutions, the company offers a comprehensive product portfolio, including hydraulic piston pumps, piston motors, orbital motors, steering gears, gear pumps, and solenoid valves.


Deeply rooted in Bosch Rexroth's core technologies, Changjia integrates cutting-edge equipment and processes from Germany, Switzerland, Japan, the UK, and other countries to establish a benchmark for international smart manufacturing.

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100000+
100 thousand sqm manufacturing facility
250000+
250 thousand sets per month manufacturing capability
180+
180+ experts and engineers
2000+
2000+ experienced employees
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ChangJia operates a 350,000㎡ advanced production facility, equipped with 750+ core machines (80% high-precision imported CNC equipment). It achieves annual output of 2 million hydraulic valves and 1 million pumps, supported by strict 7S management and full digital traceability.
Blending global technologies (e.g., Bosch Rexroth's core tech), collaborating with universities, and adopting proprietary crafts (Cartier precision machining), ChangJia drives innovations in high-pressure energy-saving and intelligent control, launching dozens of new products annually.
Boasting 2,000+ employees, including 150 R&D engineers, 120 QA specialists, ChangJia builds a specialized talent system. Its 'zero-defect' quality philosophy and wide application in industries like construction machinery and new energy reflect professional excellence, winning global recognition.
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Projects
Discover Our Innovative Hydraulic Engineering Projects
In this case, the gear-pump customer requested a change in the bushing style. Our technical team redesigned it as per the requirements, and the design was approved. Eventually, the new-designed bushing was installed in the gear pump.
Projects
Discover Our Innovative Hydraulic Engineering Projects
In this case, the gear-pump customer requested a change in the bushing style. Our technical team redesigned it as per the requirements, and the design was approved. Eventually, the newl -designed bushing was installed in the gear pump.
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Info center
Featured Blogs and News
Hydraulic Motor vs. Hydraulic Pump: What's the Difference?
Hydraulic systems are used to drive construction machines like earth-moving machines as well as factory machines, agricultural machinery, and even marine systems. Two important elements of the structure of such systems include hydraulic pumps and hydraulic motors.
2026 01 26
How to select an efficient drive motor for the cotton picking head of a cotton picker?
Across vast cotton fields, modern cotton pickers are replacing traditional manual harvesting with astonishing efficiency, becoming the mainstay of cotton collection. Behind this high-efficiency operation, the dedicated drive motor for the picker's picking head serves as the core power component.
2026 01 24
2026 Las Vegas Construction Machinery Exhibition (CONEXPO CON/AGG)
From March 3rd to 7th, 2026, CONEXPO-CON/AGG, the largest and most influential event in the global construction machinery sector, will grandly open in Las Vegas, USA. This top-level exhibition, which brings together the world's leading technologies, cutting-edge products, and industry experts, is becoming a core platform for enterprises to break through market barriers, lead industry trends, and seize high-end markets.
2026 01 24
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Contact us
Do you have a question?
Experience seamless assistance from our team of Trade Account Managers with everything from quotes to delivery and everything in between for your project. Our trade experts are here to help.
You Can Find Us Here
S10-6-5,Water Port Function Area, Lianglu-Cuntan Free Trade Port Area, Jiangbei District, Chongqing
ChangJia is a global leader in hydraulic technology, integrating R&D, manufacturing, sales, and service to drive innovation and production of core hydraulic components.

 Public Mailbox: info@changjia.com

Contact us

Tina
Tel: +86 135 0836 3447
WhatsApp: +86 135 0836 3447
Email: tina@changjia.com
Anne
Tel: +86 158 2639 0716
WhatsApp: +86 158 2639 0716
Email: anne@changjia.com
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