**Product Specifications:**
- **Chrome Layer Thickness:** 15μm ~ 25μm (Customized)
- **Surface Roughness:** Ra 0.2μm ~ 0.4μm
- **Axis Straightness:** 0.15mm / 1000mm
- **Surface Hardness:** HRC 58–60
- **Surface Hardening Depth:** 0.8–3mm
- **Trademark:** WF
- **Transport Package:** Paper Sleeve and Wooden Box
- **Specification:** Diameter 80mm
- **Origin:** China
- **HS Code:** 8483109000
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**Company Overview**
Suzhou Weipeng Precision Machinery Co., Ltd. is located in Suzhou, a city known for its strong foreign trade and proximity to Shanghai, one of the world’s major ports. 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.**
Our main products include hard chrome-plated rods, hydraulic piston rods, cylinder piston rods, chromium rods, hard chrome shafts, induction rods, and more. We use materials such as JIS S45C, SAE 1045, and DIN CK45, ensuring superior performance and durability.
The hard chromium piston rods we produce are made with advanced precision machining and surface treatment processes. They achieve a surface precision level of **f7** and a hardness of at least **HV800**, significantly enhancing wear resistance and extending the service life of the rods. This not only improves performance but also helps customers reduce long-term costs.
Our corrosion resistance testing is conducted in our own salt spray laboratory. The surface heat treatment ensures a hardness of **HRC 55 ± 2°**, with a hardened depth ranging from **0.5mm to 3mm**. After this, the rods undergo precision milling and hard chrome plating, with a coating thickness of **20 microns ± 10%**, further improving wear resistance and lifespan.
These high-performance components are ideal for heavy machinery, construction equipment, and various industrial applications. Our chromed steel bars and tubes are widely used in hydraulic and pneumatic cylinders found in agricultural machinery, lifting equipment, material handling systems, garbage collection devices, and more.
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**Company Capabilities**
We offer a wide range of products, including:
- **Hard Chrome Plated Rods**
- **Induction Hard Chrome Rods**
- **Honed Tubes**
- **Cold Drawn Seamless Mechanical Tubing (CDS)**
**Product Specifications Table:**
| 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 | 1000–6000mm | 1000–6000mm |
| Shaft Diameter | 3–120mm | 3–120mm |
| Surface Hardness | Without hardened or hardened | HRC 58–60 |
| Chrome Layer Hardness | Above HV800 | Above HV800 |
| Chrome Layer Thickness | 15μm ~ 25μm (Customized) | 15μm ~ 25μm (Customized) |
| Surface Hardening Depth | — | 0.8–3mm |
| Axis Straightness | 0.15mm /1000mm | 0.15mm /1000mm |
| Roughness | Ra 0.2μm~0.4μm | Ra 0.2μm~0.6μm |
| Precision | G6/F7 | G6/F7 |
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**Chrome Plated Steel Bars**
Our chrome-plated steel bars are manufactured from medium carbon cold-finished or hot-rolled steel, typically in grades like 1045. These bars are centerless ground, polished, and chrome-plated to a minimum thickness of 0.0005", with 0.001" per side. They are specifically designed for use in most piston rod applications in hydraulic and pneumatic cylinders.
**Induction Hardened Chrome Plated Bars**
These bars are produced using advanced techniques on JIS S45C, SAE1045, or DIN CK45 steel rods. They go through surface removal, polishing, induction hardening, and finally hard chrome plating. This process results in a highly impact-resistant bar, ideal for high-quality piston rods that can withstand tough environments.
**Applications:**
- Linear motion guides
- Hydraulic cylinder rods
- Plastic injection molding machines
- Construction equipment
- Rubber molding machines
- Papermaking machines
- Printing machines
- Refrigeration equipment
- Food and chemical machinery
- Loading equipment
- Fiber spinning equipment
- Textile machinery
- Agricultural equipment
- Automotive and shipbuilding industries
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**Honed Tubes**
- **Raw Material:** DIN ST52, SAE1020
- **Pressure & Temperature Classification:** High pressure & temperature piping
- **Inner Diameter:** 40mm – 320mm
- **Outer Diameter:** 50 – 400mm
- **Thickness:** 5 – 40mm
- **Length:** 7000mm
- **Straightness:** Max 0.5/1000mm
- **Inside Surface Roughness (Ra):** 0.2–0.4um
- **Tolerance INT:** DIN2391 H8
**Cold Drawn Seamless Mechanical Tubing (CDS)**
This is a cold-drawn 1020 steel tube. It is produced from piercing hot-rolled bar stock, which increases the tube's physical properties and reduces machine time costs. Compared to hot-finished seamless tubing, CDS offers better OD/ID uniformity, enhanced machinability, higher strength, and tighter tolerances.
**Applications:**
- Hydraulic cylinders
- Truck and automotive parts
- Heavy equipment
- Agricultural components
- Auto and truck axles, suspension parts, shock absorbers
- High-speed shafts and rollers
- Bearings, spacers, roll cages, and other machined tubular parts
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We use high-quality raw materials from well-known Chinese brands, ensuring consistent quality and performance. Our products are highly appreciated by clients due to their competitive pricing and reliable quality.
Wish you a Happy New Year!
If you're interested in our company, feel free to contact us:
**SUZHOU WEIPENG PRECISION MACHINERY CO., LTD**
Address: No.98 Changjiang Road, National Hi-Tech District, 215010, Suzhou, P.R.C
Tel: 0086-512-68387269
Fax: 0086-512-68387269
Website: [http://www.wepauto.com](http://www.wepauto.com) | [http://www.chromedbar.com](http://www.chromedbar.com)
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