Our Advantages
Company Profile
Changzhou Dingyun Precision Machinery Manufacturing Co., Ltd is a long-term professional manufacturer of precision rod , hard chrome plated rod , induction hardened rod , Hollow Chrome Rod and Hond Tube, precision machining part as drawings. We have two workshops and multiple advanced equipments such as Skiving roller burnishing machine, Honing machine, Cold drawing machine, Boring Machine, Grinding machine, Automatic Straightening Machine, Polish Machine, CNC, Heat Treatment Fur, etc.
In the past few years, we have won high praise from users in terms of product quality and after-sales service. Some of our products are also sold to Europe, America, Canada, Russia, Southeast Asia, Brazil, Austria, Australia, and other places.


Support complete specifications to fully meet your differentiated needs

Support small quantity moq

Support fast delvery

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Case Study (Application)
Craftsmanship Anchored, Future Perfected

1.Accuracy grades
High Accuracy (IT 7):Small internal diameter…
tolerance, uniform gap with the piston, strong sealing, suitable for high-pressure hydraulic systems (such as

1.Accuracy grades
High Accuracy (IT 7):Small internal diameter tolerance, uniform gap with the piston, strong sealing, suitable for high-pressure hydraulic systems (such as …

1.Accuracy grades
High Accuracy (IT 7):Small internal diameter…
tolerance, uniform gap with the piston, strong sealing, suitable for high-pressure hydraulic systems (such as
News
Craftsmanship Anchored, Future Perfected

Hard chrome plated rod bar application
Key Applications
Hydraulic & Pneumatic Systems
Hydraulic Cylinder Rods: Core component in…
excavators, presses, and manufacturing machinery.
Why: Handles high pressure (up to 300 bar), cyclic loads, and resists seal abrasion.


WHAT OUR CUSTOMERS SAY
In the past few years, we have won high praise from users in terms of product quality and after-sales service.
“We’ve been partnering with Dingyun for our honed tube and chrome-plated rod needs, and the experience has been exceptional. Their team consistently delivers high-precision products tailored to our exact specifications, ensuring seamless integration into our hydraulic systems. What stands out most is their dedication to quality and their responsive, professional support—always ready to go the extra mile. Dingyun has become a trusted ally in driving our projects forward with reliability and excellence.“
“Dingyun has been a reliable and professional partner in our supply chain. Their products consistently meet our technical requirements, and their team is responsive and easy to work with. Even under tight deadlines, they deliver on time without compromising quality. We value their commitment and look forward to continued cooperation.“