Home » Products » Piston Rod » Chrome Hydraulic Cylinde Piston Rod Stock Hydraulic Bar Material Suppliers


Share to:
sharethis sharing button

Chrome Hydraulic Cylinde Piston Rod Stock Hydraulic Bar Material Suppliers

Professional manufacturer of Honed tube & chrome rod, founded in 2004, one of biggest manufacturer in China. Rich experience in production and export, prefect products & services gained recognition of clients from 40 countries.

The piston rod is a connection part that supports the piston to do work. Most of it is used in the oil cylinder and cylinder movement execution parts. It is a moving part with frequent movement and high technical requirements. 

Taking hydraulic cylinder as an example, it is composed of cylinder, piston rod (cylinder rod), piston and end cap. The quality of its processing directly affects the life and reliability of the entire product. Piston rod processing requirements are high, its surface roughness requirements are Ra0.4~0.8um, the coaxial degree, wear resistance requirements are strict.

Hard chrome plated piston rod by hot rolling, peeling, (induction hardening), surface grinding, hard chrome plated processing. More than ten processes, using CK45, 20MnV6, 42CrMo4, SUS304, SUS316 and other materials made of screw steel.

Accuracy grade f7 tolerance, surface hardness ≥HV900. Chrome-plated layer thickness 20-50 microns optional, salt spray test 60-90 hours. Induction hardening hardness HRC55±2, quenching depth 0.5-3.5mm optional.

Product Description


Due to the residual compressive stress on the surface of the surface layer, the rolling machining is helpful to seal the small cracks on the surface and prevent the expansion of erosion. Thus, the corrosion resistance of the surface can be improved, and the fatigue crack can be delayed or expanded, and the fatigue strength of the cylinder rod can be improved. 

By rolling forming, a cold working hardening layer is formed on the rolling surface, which reduces the elastic and plastic deformation of the contact surface of the grinding pair, thereby improving the wear resistance of the cylinder rod surface and avoiding the burn caused by grinding. After rolling, the reduction of surface roughness value can improve the matching property. 

Parameters of Chrome Rod


Chrome Rod

Steel Grade CK45, SAE1045, 4140, JIS45C, 40Cr, 20MnV6, 42CrMo4, SS431, SS430, Stainless Steel 304/316/2205, etc.
Diameter Φ 6-500mm
Tolerance ISO f7
Roughness max. Ra0.20µm (statistic average: 0.05 - 0.15µm)
Roundness Half of the tolerance ISO f7
Length 4000mm, 5800mm, 6000mm, 7500mm can be choice
Straightness <= 0.2/1000
Technology Test in natural salt spray according to ASTM B 17-96/120/150/200 hours.
Packing Anti-rust oil coated, sheathe by paper board pipe, Cotton rope twined, Woven bag packaged.
Manufacturing Process of Chrome Rod



Q: Are you a manufacturer?

A: Yes! We are a professional honing tube manufacturer.

Q: How can I get the price?

A: We usually quote within 24 hours after we get your inquiry by telling us the material, out diameter, wall thickness, quantity and application of the steel pipe which you need.

Q: What is your terms of payment?

A: T/T or L/C according to real order.

Q: How long is your delivery time?

A: It's usually about 30 days. At the same time, urgent order could also be arranged about 7 days.

Prefessional manufacturer of Honed tube, Hard
chrome plated rod, Hydraulic seamless pipe.
We sincerely hope there would be a chance for us to start business and build long term relationships may from an inquiry soon.
  sales@dhonedtube.com
  Yangshan Town, Huishan District, Wuxi City, China 
      Qingzhou, Weifang, China

Please contact us with inquiry or questions by filling in the form below. We will contact you in first time. :-)


More >>
Copyright © 2020 dooharvest