



Diameter Range: Ø6-30mm
Maximum Length: 1000mm
Material: High-strength steel (C45,C35,304/316/316L stainless steel)
Surface Treatment: QPQ (Quench-Polish-Quench)
Surface Hardness: HRC 40-45
Surface Roughness: Ra ≤ 0.2μm
Salt Spray Test: 120+ hours
Application: car trunk and honnet, gas spring, damper, hardware toolbox
Specially designed for high-load, high frequency extension and compression cycles, hard chrome plated piston rod is the core component that ensures the long-term, reliable operation of gas springs. Manufactured from high-carbon chromium bearing steel (SUJ2/1045), each hard chrome piston rod is precision-engineered to a tight tolerance of ±0.01mm and must pass a rigorous neutral salt spray test exceeding 500 hours. This guarantees exceptional wear resistance, superior corrosion protection, and an extended service life. We are your reliable OEM/ODM partner, offering comprehensive customization.
Automotive industry: As the core component of a shock absorber, the hard chrome plated piston rod maintains a near constant working performance under all forms of harsh road conditions.
Mechanical engineering: Various mechanical equipment utilize Damper rods - parts that both bear heavy loads and suffer from frequent movement being the prime examples.
Aerospace: The more specialized use in this field, critical motion control systems requiring some form of high precision and near all encompassing reliability are served by these hard chrome plated piston rods. For trunk, hood lift supports, and seat adjustment mechanisms.
Furniture industry: Air pressure lifting devices within furniture are a common application, hard chrome plated piston rods providing that smooth adjustable function. As the core lifting component for office chair height adjustment, kitchen cabinet lift-up doors, and height-adjustable desks.
Compared to other surface treatment technologies, high frequency quenching hard chrome piston rods have their unique advantages and limitations:
QPQ piston rods compare very well in wear and corrosion resistance, nitriding and quenching being the treatment used; higher initial costs and longer production cycles are the down sides. Cost and near term efficiency make chrome plated rods the better choice in most cases.
hard chrome plated piston rods form a true hardened layer (local heating/rapid cool), extremely high surface hardness is achieved, but a weaker bond between substrate and surface is often observed.
1、We have advanced automatic production lines and to a large extent modern inspection equipment - efficiency is key.
2、A perfected management system leads to all round quality inspection, every high frequency chrome piston rod product we send out is a 'top standard' type solution for the end customer.
3、Hard chrome plated piston rods in particular have built up a very good reputation (domestic and international, Europe being a prime example).
5+ years of continuous production and all the small scale or large factory orders we take, we are a true service oriented supplier.
| Type | Model | Material | Diameter(mm) | Length(mm) | Roughness | Hardness | Surface Treatment |
| chrome plated rod | HZ005 | steel 35 | Φ14 | 60--700 | Ra<0.2μm | HRC40-45 | QPQ 48Hours |

Qianhuang Town,Wujin District,Changzhou City,Jiangsu Province,China

0086-13584301543

info@hzxhardware.com
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