**Company Overview**
Suzhou Weipeng Precision Machinery Co., Ltd. is located in Suzhou, a city known for its foreign trade and economic development, just a short distance from the international port of Shanghai. Established in 2009, we are a specialized manufacturer focused on producing high-quality piston rods and linear shafts.
**Quality is Life of Enterprise. Your Satisfaction is Our Goal.**
We take pride in delivering products that meet the highest standards of quality and performance. Our commitment to excellence ensures that our clients receive reliable and durable components suitable for a wide range of industrial applications.
**Main Products**
We provide manufacturers of hydraulic and pneumatic cylinders with a comprehensive range of high-quality tube and piston products, including:
- Hard Chrome Plated Rod
- Hydraulic Piston Rod
- Cylinder Piston Rod
- Chromium Rods
- Hard Chrome Shaft
- Induction Rod
- Induction Shaft
**Material Specifications**
Our products are made from premium materials such as JIS S45C, SAE1045, and DIN CK45. The hard chromium piston rods undergo precision machining followed by surface chromium treatment, achieving a surface precision level of **F7** and a hardness of at least **HV800**, significantly enhancing wear resistance and extending the service life of the product.
The surface heat treatment process ensures a hardness of **HRC55 ± 2°**, with a hardened depth ranging between **0.5mm and 3mm**. The chrome layer thickness is maintained at **20 microns ± 10%**, further improving durability and performance.
**Applications**
Our products are ideal for heavy machinery, construction equipment, and various other industrial applications. They are widely used in agricultural machinery, lifting equipment, material handling systems, and more.
**Product Specifications**
Below are the key specifications of our main products:
| Item | Hard Chrome Plated Rod | Induction Hard Chrome Rod |
|------|------------------------|---------------------------|
| Place of Origin | Jiangsu, China | Jiangsu, China |
| Material | JIS S45C, SAE1045, DIN CK45 | JIS S45C, SAE1045, DIN CK45 |
| Length | 1000–6000 mm | 1000–6000 mm |
| Shaft Diameter | 3–120 mm | 3–120 mm |
| Surface Hardness | Without hardened or hardened | HRC58–60 |
| Chrome Layer Hardness | Above HV800 | Above HV800 |
| Chrome Layer Thickness | 15μm ~ 25μm (Customized) | 15μm ~ 25μm (Customized) |
| Surface Hardening Depth | – | 0.8–3 mm |
| Axis Straightness | 0.15 mm/1000 mm | 0.15 mm/1000 mm |
| Roughness | Ra 0.2μm–0.4μm | Ra 0.2μm–0.6μm |
| Precision | G6/F7 | G6/F7 |
**Chrome Plated Steel Bars**
Our chrome-plated bars are manufactured from medium carbon cold-finished or hot-rolled steel, typically in 1045 grades. These bars are centerless ground, polished, and chrome-plated to a minimum thickness of 0.0005" per side, making them ideal for use in hydraulic and pneumatic cylinder piston rod applications.
**Induction Hardened Chrome Plated Bars**
These bars are produced using advanced techniques on JIS S45C, SAE1045, or DIN CK45 steel rods. After surface removal, polishing, and induction hardening, they are coated with hard chrome plating to ensure excellent impact resistance and durability, suitable for harsh environments.
**Honed Tubes**
Our honed tubes are made from materials like DIN ST52 and SAE1020, designed for high-pressure and high-temperature piping. They have an inner diameter ranging from 40mm to 320mm, with a wall thickness of 5–40mm and a length up to 7000mm. Their straightness is maintained at a maximum of 0.5mm/1000mm, with a surface roughness of 0.2–0.4μm.
**Cold Drawn Seamless Mechanical Tubing (CDS)**
This tubing is produced from 1020 steel and offers superior dimensional accuracy, enhanced machinability, and tighter tolerances compared to hot-finished products. It is widely used in hydraulic cylinders, automotive parts, and structural applications.
**Company Capability**
We maintain a strong production capacity and offer custom solutions tailored to client needs. Our products are highly appreciated for their competitive pricing and consistent quality.
**Contact Us**
If you're interested in our products or services, feel free to reach out to us.
**SUZHOU WEIPENG PRECISION MACHINERY CO., LTD**
Address: No. 98 Changjiang Road, National Hi-Tech District, 215010, Suzhou, P.R.C
Tel: +86-512-68387269
Fax: +86-512-68387269
Website: [www.wepauto.com](http://www.wepauto.com) | [www.chromedbar.com](http://www.chromedbar.com)
Wish You a Happy New Year!
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