Hydraulic Cylinder Tube , precision tube, Cold drawn hollow section , Cold Drawn Welded Tube , Cold drawn Seamless Tube – Changzhou Chengxin Metal Products Co., Ltd.

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High Precision Steel Tube Manufacturer Since 2008

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We are engaged in manufacturing and exporting high quality Hydraulic Cylinder Tubes

Advanced Cold Drawn Steel Tubes And ERW Steel Tubes Manufacturer

In our plant, the max wall thickness of welded tubes can be as heavy

as 15mm with OD above 250mm.

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Comprehensive Solutions in Hydraulic Cylinder Tube Manufacturing

Durable finish standards, high strength, robust construction, corrosion resistance and fine finish

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Our Service

Quality Raw Material

Quality raw material from leading suppliers.

Strict Quality Control

Strict quality control before, during and after production

Flexible Production Arrangment

To ensure both delivery time and customer experience.

Customization

Customization to satisfy customers with special/

customized demand.

We Are Engaged in Manufacturing And Exporting High Quality Hydraulic Cylinder Tube, Precision Tube & Mechanical Tubing, etc.

Our Product Range

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Two sections are involved here: Cold drawn steel tubes and ERW steel tubes. Till now, we have now been a manufacturers of hydraulic cold drawn steel tubes with capacity of 25000 tons and ERW steel tubes with capacity of 15000 Tons.

We are always here and ready to supply quality tubes, good service, and firm support for customers all over the world.

Ready To Hone Tube

Ready To Hone Tube is a steel tube with ID suitable for further ID treatment, like honing or skiving&roller burnishing.

Honed or Skived&roller Burnished Tube

Honed tube or skived&roller burnished tube is steel tube with ID honed or skived&roller burnished to ensure tight ID tolerance like ...

Cold drawn Seamless Tube

Seamless precision tube can be made from hot pierced blank pipes or hot rolled seamless pipes through cold rolling or cold drawing.

Cold Drawn Welded Tube

Cold drawn welded tube, also named CDW tube, is made from ERW (electrical resistant welded) steel pipe through cold drawing.

Hydraulic Cylinder Barrel

CNC turning as per drawings can be provided based on the tubes we manufacturer for our customers, and finished products covers but ...

Hollow Piston Rod

Piston rods are classified as solid piston rods and hollow piston rods. Solid piston rods are made from hard chromed plated steel bars ...

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High quality and diverse range of Precision Tube

The offered products are manufactured using high quality raw material and advanced technology

as per the set industry standards.

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Industries That We Serve

We are proud to introduce ourselves as an experienced tube solution provider and reliable partner for various industrial application like hydraulic cylinder, automotive, machinery, etc.

Construction Equipment

Hydraulic cylinder for construction Equipment like excavators, loaders, forklifts, etc.

Spareparts

Spareparts for various various industries like Automotive, aerospece, steel melting, etc.

Geological Drilling&exploring

Steel tubes play a critical role in geological drilling and exploration.

About Chengxin

With over 2 decades of expertise in steel pipes&tubes

Since 1998, Changzhou Chengxin Metal Products Co.,Ltd is focusing on manufacturing of steel pipes&tubes. Started as an ERW steel tube manufacturer, we have built our brands of small and medium size ERW steel tubes in Jiangsu Province. With market and demand change as well as technology improvement,we are devoting ourselves to precision tube manufacturing since 2006.

Raw material with high quality
We use high quality raw material from leading manufacturers like Citic Steel, China Resources, and Hengyang Valin, whose raw material have a refining process to ensure the purity of steel and is detected by ultrasonic and magnetic flux leakage system. Chemical composition and mechanical properties are strictly ensured as per relevant standard specification. Size and tolerance, especially the wall thickness tolerance/concentricity is also well controlled.
Abundant stock of raw material
Based on actual situation of orders and requirement of main customers, we keep regular stock of raw material with size(OD) of 89mm-245mm and steel grade covering ST52,E355,STKM 13C, AISI 1026,AISI 1045,C45E,CK45, which covers regular usage for most of our customers. In contrast with booking raw material with MOQ, it brings us much flexibility as we can not only deal with small quantity orders but also ensure fast delivery. We believe this will improve customer’s experience of purchase fundamentally.

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Strict production management and quality control
We have established strict quality control circle covering raw material receipt, in-production inspection,and finished product control, and inspection&test records will be kept in our management system. Any quality dispute or problem will be immediately reported and handled internally.
Advanced production&inspection facilities
Advanced production and inspection facilities cane ensure the stability of continuous production. With automatic cutting, the length tolerance can be controlled within 1mm, and cut straightness can be controlled within 0.5mm. With the skiving&roller burnishing machine with burnishing length of 9 meters max and appropriate machining allowance, the ID tolerance and bore roughness after skiving&roller burnishing can be perfectly controlled. With multiple roller straightening machine, the straightness can be easily controlled within 1mm/1000mm max. With ultrasonic and eddy current NDT system, the damages and imperfections lies on surface or deep inside the tube can be detected.

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Research&development
We keep investing in research and development on both technology and new products in the past years. New production device like press machines have been created and improved, new patents have been applied, and new products like cold drawn shaped tubes have been developed.
Variety of customized services
We know the key to win the market and customers is to provide accurate solution to customers’ requirements, but not providing what we manufacture only. In addition to steel tube we produce, we also provide services like OD machining, OD polishing, ID honing or skiving&roller burnishing, initial CNC turning.

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Guarantee&Warranty
For each piece of tube we delivered, Mill Test Certificate will be issued, and quality guarantee will be given. We give a period of 1-3 months for claim of quality dispute and problems after cargo receipt, depending on actual situation.

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