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Leading Precision Flow,Unstoppable Force Hydraulic Valves Manufacturer Since 2010


China Wholesale Hydraulic Components Manufacturer | ChangJia

Professional Hydraulic Components Manufacturer & One-Stop Supplier
Professional Hydraulic Components Manufacturer & One-Stop Supplier
Professional Hydraulic Components Manufacturer & One-Stop Supplier
15 Years Experience | 250,000 Units/Month Capacity | 3 Global Production Bases
- MOQ 100
- OEM/ODM Customization
- Global Supply Chain - Fast delivery to 60+ countries
- Hydraulic Valves
- Gear Pumps
- Factory Direct Pricing - Competitive wholesale rates for volume buyers
-Exclusively Serving Manufacturers, Wholesalers & Distributors
WHOLESALE SOLUTIONS - GET QUOTE
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What are the Benefits

Our hydraulic components—what you see is what you get, quality first, no hidden costs.

15 Years of Industry Experience
15 Years of Industry Experience
Professional Insight: Years of industry expertise enable us to quickly understand client needs and deliver tailored solutions that consistently exceed expectations.

Reliability Assurance: Our extensive experience helps clients mitigate risks while maintaining rigorous quality control that meets international standards.

Trusted Partnership: We build lasting relationships through transparent communication and unwavering commitment to our global clients' sustainable business growth.
Our Advantages
Technical R&D Advantages
Powered by Leading Technology: Customers gain access to more energy-efficient and high-performance hydraulic solutions, enhancing overall equipment performance. Sustainability Support: Advanced technology helps customers achieve high performance while reducing energy consumption, contributing to green development goals. Future-Ready Adaptation: Intelligent hydraulic products empower customers to embrace the automated and digital future of the industry.
10+ Years Experience
Product Quality Advantages
Continuous Operation Capability: High-quality products reduce failure rates, ensuring customer equipment reliability and minimizing downtime. Optimized Investment Returns: Durable products extend service life, lowering maintenance costs for customers. Peace of Mind Experience: Consistent quality builds customer confidence, allowing them to focus on business growth.
Cooperative partner
Production Capacity Advantage
A state-of-the-art production facility spanning 100,000 square meters boasts an annual output capacity of 3 million units, ensuring a stable supply chain: Robust production capabilities guarantee timely delivery, preventing project delays. Consistent quality: Large-scale manufacturing delivers superior product uniformity, with every unit meeting specified standards. Flexible responsiveness: Mass production enables rapid fulfillment of urgent customer requirements.
Cooperative Partner
Thoughtful and efficient one-stop service
Peace-of-mind experience: Our one-stop service streamlines procurement and implementation processes, saving clients time and effort. Expert guidance: Clients receive authoritative support for both technical challenges in practical applications and solution optimization. Business assurance: Robust after-sales service ensures rapid issue resolution when problems arise, minimizing operational loss risks.
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Wholesale and Custom Hydraulic Motor
Exclusively Serving Manufacturers, Wholesalers & Distributors
01
01
MOQ 100 PCS
Wholesale OMR/BMR Series Hydraulic Orbital Motor For Danfoss

Exclusively Serving Manufacturers, Wholesalers & Distributors
02
02
MOQ 100 PCS
Wholesale OMS/BMS Series Hydraulic Motor Orbital Motor For Danfoss
Exclusively Serving Manufacturers, Wholesalers & Distributors
03
03
MOQ 100 PCS
Wholesale OMP/BMP Series Hydraulic Motor Orbital Motor Replacement for Danfoss
Exclusively Serving Manufacturers, Wholesalers & Distributors
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04
MOQ 100 PCS
Wholesale OMS/BMS Series Hydraulic Motor Orbital Motor For Danfoss

Exclusively Serving Manufacturers, Wholesalers & Distributors
05
05
MOQ 100 PCS
Wholesale A2F Series Hydraulic Piston Motor Bent-axis Axial Piston Fixed Pump/Motor For Bosch Rexroth
Exclusively Serving Manufacturers, Wholesalers & Distributors
06
06
MOQ 100 PCS
Wholesale A6VE Hydraulic Motor Piston Motor Axial Piston Variable Plug-In Motor For Bosch Rexroth
Exclusively Serving Manufacturers, Wholesalers & Distributors
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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.
High torque output
The hydraulic motor can provide extremely high starting torque at low speeds, making it particularly suitable for heavy-load or high-resistance scenarios
High power density
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.
Exceptional Internal Leakage Control
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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Low Noise Operation
During operation, it generates minimal noise, creating a quieter working environment. It is particularly suitable for noise - sensitive applications.
Superior Sealing Performance
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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Wholesale and Custom Hydraulic Valve 
01
01
MOQ 100 PCS
Wholesale V6 Series Flow Diverter Valve Directional Control Valve DC 12V/24V

Exclusively Serving Manufacturers, Wholesalers & Distributors
02
02
MOQ 100 PCS
Wholesale OMS/BMS Series Hydraulic Motor Orbital Motor For Danfoss

Exclusively Serving Manufacturers, Wholesalers & Distributors
03
03
MOQ 100 PCS
Wholesale P40 P80 P120 Series Hydraulic Valve Manual Directional Control Valve With 1-7 Sections

Exclusively Serving Manufacturers, Wholesalers & Distributors
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MOQ 100 PCS
Wholesale 4WRZ & 4WRH Pilot Operated Series Proportional Directional Valves

Exclusively Serving Manufacturers, Wholesalers & Distributors
05
05
MOQ 100 PCS
Wholesale DV/DRV Series Throttle Valve Hydraulic Flow Control Valve Throttle Check Valve

Exclusively Serving Manufacturers, Wholesalers & Distributors
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06
MOQ 100 PCS
Wholesale ZDC Series Valve Directly Operated Meter-in Pressure Compensator

Exclusively Serving Manufacturers, Wholesalers & Distributors
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Support Hydraulic Valve Types

ChangJia stands as the preeminent provider in industrial hydraulics, boasting the globe's most extensive collection of premium hydraulic valves. With our hydraulic valves at your disposal, you gain precise command over volume flow regulation.
Pressure Valves
The pressure valve can automatically open or close according to the set pressure value, so as to maintain the pressure in the system within a safe range. When the system pressure exceeds the set value, the pressure valve will automatically open to release excess pressure and prevent equipment damage due to over pressure; When the pressure is lower than the set value, the pressure valve will close to maintain the normal operation of the system.
Directional Valves
Directional valves serve as pivotal components that dictate the flow direction within a hydraulic system. By precisely managing this flow, they directly govern the movement or rotational orientation of hydraulic actuators, ensuring seamless operation and accurate positioning.
Flow Valves
Flow valves play a critical role in controlling the volume flow rate of hydraulic fluid. Through this regulation, they effectively determine the speed at which hydraulic actuators operate, enabling precise control over the motion and performance of various hydraulic-powered machinery and equipment.
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Proportional Valves
A proportional valve is a control component that precisely regulates the flow rate, pressure and direction of a fluid through electrical signals. Maintain the stability of the system pressure by changing the resistance at the valve port or directly adjusting the pressure feedback loop. Proportional valves have become core components in industrial automation, precision machinery and energy-saving systems, promoting the development of equipment towards intelligence and efficiency.
Cartridge Valves
Cartridge valves are key components widely used in hydraulic systems, mainly for direction control, pressure control, flow control, and logic control of compound functions.The cartridge valve precisely controls the main oil circuit by controlling the oil pressure to drive the movement of the valve core, and by combining the area ratio and the balance relationship of the spring force. Its modular, high-flow and flexible features make it an ideal choice for complex hydraulic systems
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Wholesale and Custom Hydraulic Pump
01
01
MOQ 100 PCS
Wholesale MF897147M92 MF285 Hydraulic Pump Power Steering Pump For Massey Ferguson Tractor
Exclusively Serving Manufacturers, Wholesalers & Distributors
02
02
MOQ 100 PCS
Wholesale RE73947 RE72058 Hydraulic Pump Gear Pump For John Deere Tractor

Exclusively Serving Manufacturers, Wholesalers & Distributors
03
03
MOQ 100 PCS
Wholesale F000510502 / 052107T1 Hydraulic Pump For Massey Ferguson 471 481 491 Tractor

Exclusively Serving Manufacturers, Wholesalers & Distributors
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04
04
MOQ 100 PCS
Wholesale 5179714 A42X Hydraulic Pump Gear Pump for FIAT Tractors

Exclusively Serving Manufacturers, Wholesalers & Distributors
05
05
MOQ 100 PCS
Wholesale A10VO & A10VSO Variable Axial Piston Pump Hydraulic Pump For Rexroth

Exclusively Serving Manufacturers, Wholesalers & Distributors
06
06
MOQ 100 PCS
Wholesale Danfoss OSPD hydraulic steering units
Exclusively Serving Manufacturers, Wholesalers & Distributors
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Product Advantages

The hydraulic pump is the power source of the hydraulic system. Our relentless pursuit focuses on optimizing these pumps to achieve unparalleled levels of productivity, unwavering reliability, and enhanced energy efficiency. And our hydraulic pumps cover gear pumps, piston pumps and hydraulic steering unit.
Gear Pumps
We are dedicated to the engineering, manufacturing, and supply of top-notch gear pumps. Our global customer- centric approach involves close collaboration. By fusing our time-honored heritage with ceaseless innovation, we ensure the delivery of gear products that meet the excellence standards.
Piston Pumps
ChangJia piston pumps present a versatile array of capabilities, catering to both open-and closed-circuit systems in medium-to heavy-duty industrial scenarios. The fixed-displacement variants boast outstanding volumetric and mechanical efficiencies. Meanwhile, the variable - displacement models afford you the flexibility to select control options, precisely aligning with specific pressure and flow requirements.
Hydraulic Steering Units
ChangJia hydraulic steering unit is a critical component in agricultural machinery, enabling precise control of direction through pressurized hydraulic fluid. It converts mechanical input from the steering wheel into hydraulic force, reducing manual effort and providing smooth, responsive maneuverability. This system is widely used in agricultural machinery due to its reliability, durability, and ability to handle high loads. Hydraulic steering ensures safety and efficiency, even in demanding conditions, by delivering consistent performance and reducing operator fatigue.
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Discover Our innovative

Hydraulic Engineering

Projects

02
Customized Gear-pump
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.
WHOLESALE SOLUTIONS - GET QUOTE
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Our Exhibition Gallery

Explore our journey through prestigious industry exhibitions where we've showcased innovation and
connected with global partners. Each event represents our commaitment to excellence and forward-thinking solutions.
Bauma Shanghai
Bauma Shanghai
Discover Advanced Hydraulic Components Here
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Changsha Agricultural Exhibition
Changsha Agricultural Exhibition
At the scene, we welcomed many interested customers and met with old friends to chat about the research and development of our new product.
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Factory Tour and Business Cooperation
Factory Tour and Business Cooperation
We extend our gratitude to our Russian clients for traveling from afar to visit our factory and discuss cooperation opportunities.
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Hanover Agricultural Exhibition in Germany
Hanover Agricultural Exhibition in Germany
We met with our customers ,and we feel happy for the coorperation and friendship between us.
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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!
What Our Clients Say
Discover why businesses trust our services to deliver exceptional results and
outstanding customer experiences.
MAZ
MAZ
Chief Procurement Officer
I have checked ChangJia's Products and Service. There is no worry and problem.
Michael 
Michael 
Engineering Manager
ChangJia products are of good quality, like the other parts.
Andreas
Andreas
Project Manager
I have received the motors and control orbitrols.Everything was well packed ,and the parts as they were supposed to be.
Markus
Markus
Business Development Manager
We checked ChangJia's Motors and we were very happy with the results.
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Who We Are

Factory Tour

Remain true to our original aspiration and keep our mission firmly in mind

Everything will be built around long-term value, and the long-termism way of thinking is both a prerequisite and a consequence of actually owning something.

WHOLESALE SOLUTIONS - GET QUOTE

Changjia is a leading international hydraulic technology enterprise integrating R&D, manufacturing, sales, and services. Specializing in the innovation and production of core hydraulic components, our product portfolio encompasses a full range of high - end hydraulic components, including hydraulic piston pumps, piston motors, orbital  motors, hydraulic valves, gear pumps, and solenoid valves.


Guided by the "zero - defect" quality management philosophy, our products are widely applied in fields such as construction machinery, agricultural machinery, sanitation vehicle, winning high acclaim from global customers.

Next You’ll Find Confidence Through Our Production Facility

01
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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Get Wholesale Price
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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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WHOLESALE SOLUTIONS - GET QUOTE
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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.
WHOLESALE SOLUTIONS - GET QUOTE
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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.
WHOLESALE SOLUTIONS - GET QUOTE
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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.
WHOLESALE SOLUTIONS - GET QUOTE
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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.
WHOLESALE SOLUTIONS - GET QUOTE
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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!
Our advantages
Why choose Changjia Company
1
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.
2
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
3
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!
100
thousand sqm manufacturing facility
250
thousand sets per month manufacturing capability
2000 +
experienced employees
180 +
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, Lianglu-Cuntan Free Trade Port Area, Jiangbei District, Chongqing
Copyright © 2025 CHANGJIA COMPANY
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