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Leading Precision Flow,Unstoppable Force Hydraulic Valves Manufacturer Since 2010


China Wholesale Hydraulic Components Manufacturer | ChangJia

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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!
Explore Our ChangJia Core high-quality Hydraulic products
Discover our innovative solutions designed to meet diverse hydraulic  needs across construction machinery manufacturing, agricultural machinery manufacturing and special-purpose vehicle manufacturing industries.


01
01
OMR/BMR Series Hydraulic Orbital Motor Variable Displacement Hydraulic Motor For Danfoss
BMR/OMR series hydraulic motor is a kind of shaft distribution motor, using the design of needle tooth rotor pair, low starting pressure, high efficiency, good retention. Ideal for Construction machinery, agricultural machinery and transportation.
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OMS/BMS Series Hydraulic Motor Orbital Motor For Danfoss
OMS/BMS new series motor adapt the advance Geroler gear set designed with disc distribution flow and high pressure. The unit can be supplied the individual variant in operating multi-function in accordance with requirement of applications.It can be widely applied to construction machinery.
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P40 P80 P120 Series Hydraulic Valve Manual Directional Control Valve With 1-7 Sections
1. P40, P80, P120 series are economical monoblock directional control valves with various applications and features of compact structure, stable performance, low price and high universality .
2. Control type: manual, cable, solenoid, pneumatic, electro-hydraulic, etc.
3. Circuit type: parallel
4. Monoblock structure, 1-7 sections
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5179714 A42X Hydraulic Pump Gear Pump for FIAT Tractors
The 5179714 A42X hydraulic pump has a simple and reliable structure, strong environmental adaptability, and good wear resistance. It is a durable and efficient hydraulic pump designed for agricultural machinery. It is ideally suited for FIAT tractors, the stable hydraulic power is essential for various agricultural applications.
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A10VO & A10VSO Variable Axial Piston Pump Hydraulic Pump For Rexroth
This series of pumps adopts the open circuit swash plate axial piston variable pump design, with a variety of control methods and excellent performance characteristics. A10V motors are widely used in construction machinery, such as excavators, loaders, etc., and are suitable for hydraulic systems that require high pressure and flow.
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Hydraulic Piston Motor
High performance rotary assemblies with proven spherical oil distribution trays have the advantages of automatic alignment, low circular speed, high efficiency, durable ball and roller bearings for long service life, and the drive shaft can withstand radial loads.
Ideal for heavy-load construction equipment (e.g., excavators, drilling rigs) and industrial machinery requiring stable power transmission under variable loads.
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Tired of Skyrocketing Hydraulic Costs ,Expensive Repairs, Long Lead Times , Outdated Hydraulic Technology and Performance Limitations,Unreliable Hydraulic Performance?

Small TitleTraditional hydraulic component sourcing can be a major drain on your profit margins, competitive advantage, and equipment innovation capabilities. Outdated suppliers often create bottlenecks for custom projects while constraining your growth potential with inflexible solutions and unpredictable costs. We've engineered a better partnership - combining advanced technology, reliable supply chains, and customer-focused service to transform your hydraulic sourcing experience. With 15 years of manufacturing excellence and global production capacity, we deliver the performance you need at prices that protect your bottom line.


Problem
Supply Chain Diversification Pressure
Companies face rising costs and supply risks from over-reliance on Western suppliers, urgently needing proven Asian alternatives.
Our Solution
Stability Through Global Manufacturing Excellence
3 global bases, 250K monthly capacity, 15 years expertise. European quality at 30-50% lower costs. Stable Asian supply.
Problem
Intense Cost Competition Pressure
Crop price volatility impacts farmers' purchasing power, forcing equipment suppliers to cut costs amid currency fluctuations.
Our Solution
Changjia's Cost-Optimization Solution
Lean manufacturing cuts costs. Volume pricing from 100 units. Long-term contracts hedge risks. Value engineering optimizes design.


Problem
Quality cannot be guaranteed.
Many companies hesitate to choose suppliers due to quality concerns, complex international standard requirements, and technical specification alignment difficulties.
Our Solution
German Precision. Global Certification. Zero Defects.
Our Zero-defect quality with German CNC, Swiss CMM equipment. 180+ engineers provide support. Helps achieve CE, ISO certifications.
Problem
 Limited Customization Capabilities
Many suppliers only offer standard products, can't meet specific needs. Forces performance compromises or multiple suppliers.
Our Solution
Full Customization Expertise
180+ experts with 15 years experience deliver tailored hydraulic solutions for construction, agriculture, and industrial uses.
Problem
Incomplete supplier credentials and substandard environmental compliance
Poor supplier compliance causes delayed launches, violations, lost trust, supply disruptions, and costly rework damage.
Our Solution
Qualified. Certified. Delivered. Your Complete Hydraulic Solution
We handle CE/ISO certifications, deliver eco-friendly products, provide complete documentation, and guarantee 15-day samples.
Problem
Project Delivery Risk Control
Tight deadlines and shipping delays cause production shutdowns, contract penalties, and lasting reputation damage.
Our Solution
Comprehensive Project Risk Management Solutions
Dedicated PMs track milestones, agile manufacturing cuts lead times, 3 production bases enable fast delivery & risk management.
Problem
Remote Communication & Service Challenges Cripple Global Operations
Time zones, language barriers, and remote oversight cause quality issues, equipment delays, and cascading production disruptions.
Our Solution
Global Service Excellence: Your Complete Hydraulic Solutions Partner
Global service teams across time zones provide real-time tracking, dedicated account managers, and worldwide support centers.
Problem
Stranded by Distance: The Hidden Costs of Poor Hydraulic Support
Distant suppliers cause downtime with slow response, no local inventory, regulation gaps, and communication barriers.
Our Solution
24/7 Global Support: Dedicated Teams, On-Site Solutions
We provide multi-timezone technical support teams with dedicated one-on-one service for seamless communication. Our qualified engineers deliver on-site support directly at your facility. 


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.
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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
Discover Advanced Hydraulic Components Here
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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
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
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 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 
Engineering Manager
ChangJia products are of good quality, like the other parts.
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
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.

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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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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Our 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!
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
experienced employees
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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