In response to the policy call, our production processes of 25MM Hydraulic Piston Rods25MM, Hollow Piston Rods, Automatic Cold Drawing Machine all reflect the awareness of energy conservation and environmental protection, and the use of resources is reducing. We are willing to grow together with you, to be your loyal partner, providing you with the most professional and considerate service. Since the establishment of our company, we have adhered to the principle of honesty and trust, and the pursuit of high-efficiency and high-level services is our goal. On the basis of independent development, we have learned and absorbed the latest research results in the field of science and technology in the world. We will continue to develop, to provide the high-quality products and services, and promote lasting cooperation with our customers and create a better future.

High precision hydraulic cylinder tubes uses a kind of low cost process to obtain high inner hole gauge and quality, which can not only effectively reduce the surface roughness of inner hole, but also strengthen the surface of inner hole, improve the hardness of inner hole gauge and extend the fatigue life of tubes. The inner hole of many oil cylinders adopts this process now. After skiving and roller burnishing, the surface roughness can be reduced by 2 to 3 grade. The process has good applicability for carbon steels which has low hardness and good plasticity.

Features:

We are a manufacture which can supply products and services from raw material to hydraulic cylinders and machines, including acid pickling, parkerising, saponification, cold drawing, quenching, stress annealing, honing, welding, precision machining and other processing

With mighty technical support, powerful design and development ability, we are at the front of this field and receive many good reputations

We can produce large cylinder tubes which can be 1200 mm for ID and 1600 mm for OD and the longest can reach 16 meters for length.

Mechanical properties

Advantages:

1. Improve the surface roughness which can reach under Ra 0.08um.

2. Corrected roundness and ovality.

3. Improve the surface hardness and eliminate the stress deformation.

4. Improve the quality and abrasion then extend the service life of parts and reduce the cost.

Application: Our honed tubes are widely used as mechanical tubing, pressure tubes which require a heavier wall thickness.And also they are used for producing hydraulic cylinder tubes.

Original: Jiangsu, China

Certification: ISO9001, QMS, etc.

Price: Negotiable

Material: SAE 1020, 1026, 1035; A 106 grade A, B, C; E 355, ST 52, ST 37.4, 27SiMn, CK45, 42CrMo4, etc.

Payment term: TT in advance

Delivery date: 50 days for one container, if our stock can meet your requirements, we can deliver within ten days.

Packing: standard package or according to your requirements

Market: Middle East, Africa, Asia, South America, etc.

MOQ: for common materials and sizes, we don’t need MOQ

Production process

1. Inspection of raw material

2. Acid pickling then washing

3. Parkerising then washing

4. Saponification

5. Cold drawing

6. Straightening

7. Stress relieving if need

8. Straightening

9. Cutting off two ends

10. Skiving and roller burnishing

11. Inspection and packaging

FAQ

1. Q: Where is your factory located?

A: Our factory address is: No.30 Ludai Road,Yangshan Town, Wuxi City, Jiangsu Province, China.

2. Q: How can I get to your factory?

A: Our factory is not far away from Shanghai Airport, we can pick you up in the airport if you need.

3. Q: Is your price competitive?

A: Surely we will give you best factory price based on product and service.

4. Q: How does your factory do regarding quality control?

A:We have inspectors when producing, and before shipment we also have inspectors to control quality.

5. Q: What about the transportation?

A: Usually we take seaway, because it's more convenient and cheaper.

6. Q: How long is the production cycle?

A: Usually 30-50 days

Our company not only sells St 52 High Precision Seamless Steel Tubes for Hydraulic Cylinder from production to customers, but also pays more attention to matching them with the most suitable users. All the time, we have been paying attention on all details to insure each product satisfied by our customers. We believe with our consistently excellent service you can get the best performance and cost least goods from us for a long term.

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