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Leading Precision Flow,Unstoppable Force Hydraulic Valves Manufacturer Since 2010


China Hydraulic Components Manufacturers | ChangJia

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Products
Explore ChangJia high-quality Hydraulic products 
ChangJia is dedicated to providing customers with 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 which 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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Next You’ll Find Confidence Through Our Production Facility

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Integrating Global Tech
Toward Int'l Smart Mfg Benchmark
We deeply integrate the core technologies of Bosch Rexroth, and with the advance equipments and processes from Germany, Switzerland, Japan, and the UK, which enables us to establish an international benchmark for intelligent manufacturing.
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250 Core Production Machines for Mass Production

Currently, we have over 250 core production machines, including CNC machine tools, specialized machining centers, with a total value ranging from 10 to 20 million RMB. And high-precision imported CNC equipment from renowned brands such as DMG MORI, STUDER, and UVA is over 80% of our total equipment, underscoring our commitment to world-class manufacturing capabilities.

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Premium Heat Treatment
Optimized Processes for Top - Notch Product Quality
We are equipped with many imported heat treatment equipment from famous brands such as Aichelin and Ipsen, and have optimized the entire process from material, precision machining, and surface treatment, ensuring superior product quality and performance.
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Intelligent Manufacturing Production Line
Intelligent Manufacturing Production Line: Intelligent manufacturing production line integrates advanced automatic control technology and intelligent sensing system to achieve high automation and informationization of production process. It can greatly improve production efficiency and reduce human error.
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Precision Machining Excellence for Critical Components
For critical components, we employ precision machining techniques comparable to Cartier's meticulous craftsmanship, along with Greenhilly's advanced plunger technology and Mikros' sophisticated spool and sleeve machining processes. These ensure our products consistently achieve world-class performance benchmarks.
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Automated deburring equipment and CNC machining
By introducing automated deburring equipment and CNC machining units, our annual production capacity has reached a new height that exceeds 1 million hydraulic motors, 2 million hydraulic valves and 1 million hydraulic pumps. Those advanced automation technology not only enhances production efficiency but also ensure great quality with our product.
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Product Advantages

Hydraulic Motors: High torque output, High power density, Low Internal Leakage, Quiet Operation & Imported Sealing. Equipped with imported seals, it significantly bolsters the sealing effect, preventing hydraulic oil leakage and extending the service life of the motor.
The hydraulic motor can provide extremely high starting torque at low speeds, making it particularly suitable for heavy-load or high-resistance scenarios
Compared with electric motors, hydraulic motors are smaller in size and lighter in weight, yet they can output greater power, making them suitable for space-constrained applications.
The product features minimal internal leakage, effectively reducing hydraulic oil loss. This not only enhances the stability of the system but also optimizes energy utilization.
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During operation, it generates minimal noise, creating a quieter working environment. It is particularly suitable for noise - sensitive applications.
Equipped with imported seals, it significantly bolsters the sealing effect, preventing hydraulic oil leakage and extending the service life of the motor.
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Get in touch with us
Just leave your email or phone number in the contact form so we can send you a free quote for our wide range of designs!
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
Agricultural Machinery
Construction Machinery
Construction Machinery
Municipal sanitation vehicles
Municipal sanitation vehicles

Agricultural Machinery

Specializing in the manufacturing of hydraulic pumps, hydraulic motors, and hydraulic valves, ChangJia is dedicated to providing customized solutions for agricultural industry, with our products intricately designed to seamlessly integrate with a wide array of crop harvesting machinery and field operation equipment.

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Engineered for Agricultural Excellence: High-Performance Solutions Built to Last

With unparalleled performance capabilities, our products endure extended periods of high-load operations and adapt adeptly to the diverse and challenging conditions inherent in agricultural work. Backed by cutting-edge technology and a proven track record of excellence, we empower agricultural professionals to elevate productivity while upholding sustainability standards.

Construction Machinery

ChangJia is comitted to the specialization and innovation of hydraulic motor, hydraulic valve and hydraulic pump for construction equipment application. With exceptional power output performance, we can provide a continuous stream of robust power for various construction equipment, therefore meeting the demands of high-intensity operations. 

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Engineered for Extreme Environments: Reliable Performance Across Mining and Construction


In terms of environmental adaptability, whether it is facing harsh working conditions like those in mines or the intricate terrains at construction sites, our products can operate stably. With their exceptional durability and reliability, our offerings underpin the uninterrupted, peak-performance operation of construction machinery, delivering both robust technical prowess and ironclad product guarantees to construction- sector stakeholders.

Municipal sanitation vehicles

Specializing in the research, development, and manufacturing of hydraulic pumps, motors, and valves, we engineer bespoke solutions tailored to the unique requirements of municipal environmental protection vehicles. Our products are meticulously designed to seamlessly integrate with a diverse range of urban applications, including road sweeping, refuse collection, snow and ice removal, and more.

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 Smart Hydraulic Solutions: Powering   Efficient Municipal Operations in Urban Environments


With exceptional performance and unwavering reliability, our advanced hydraulic systems empower municipal vehicles to operate continuously and efficiently under the most demanding urban conditions. Whether navigating congested city streets, enduring harsh weather, or maintaining around-the-clock urban cleanliness, our solutions deliver consistent, high-frequency performance. Beyond robust mechanical functionality, our systems integrate cutting-edge intelligent technologies that elevate automation and precision in municipal operations. This smart integration streamlines workflows, enhances operational accuracy, and significantly boosts service efficiency, providing the essential technological backbone for creating cleaner, smarter, and more sustainable urban environments.

Our advantages
Why choose Changjia Company
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Streamlined Industrial Oversight for Premium Hydraulic Components
Operating within a fully industrialized and meticulously controlled environment, we oversee every aspect of the process. we ensure each hydraulic component meets the highest standards.
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Factory-Trained Technicians & Rigorous Testing
Our production and testing facilities are staffed by factory-trained technicians, guaranteeing that all work adheres to OEM performance specifications and quality benchmarks. Our testing procedures are rigorous and unmatched in the industry, providing reliable and durable solutions
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Brand We Serve
As a hydraulic component factory, we offer our clients confidence in wholesale replacement parts services. Here are some of the famous brands we can do for the replacement like Danfoss, M+S, Eaton, White, Char-Lynn, BOSCH Rexroth, etc.
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Hydraulic Components and Solutions Manufacturer
Changjia Company adheres to the strategy of "advanced technology, lean manufacturing, and global service", continuously deepening the domestic substitution and global layout of high-end hydraulic components, and is committed to becoming an innovative leader in the global hydraulic transmission field, providing customers with value experiences that exceed expectations!
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10 ten thousand sqm manufacturing facility
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25 ten thousand seats per month manufacturing capability
2000+ experienced employees
180+ in house experts and engineers
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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, l Lan Glu-C UN Tan Free Trade Port Area, Jiang B EI District, Chongqing
Copyright © 2025 CHANGJIA COMPANY
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