Chrome Layer Thickness: 15μm ~ 25μm ( Customized)
Roughness: Ra 0.2μm~0.4μm
Axis Straightness: 0.15mm/1000mm
Surface Hardness: HRC58-60
Surface Hardning Depth: 0.8-3mm
Trademark: WF
Transport Package: Paper Sleeve and Wooden Box
Specification: dia 80mm
Origin: China
HS Code: 8483109000
Company overview

Suzhou Weipeng Precision Machinery Co., Ltd. is located in Suzhou, which is a foreign trade oriented economic developed city, adjacent to international port city Shanghai. Established in 2009, we're a manufacturing company specialized in the production of piston rods and linear shafts.

     Quality  is  Life  of  Enterprise. Your  Satisfaction  is  Our  Goal.       
Main Products:

We offer the manufacturers of hydraulic and pneumatic cylinders a wide assortment of high quality tube and piston products.

Hard Chrome Plated Rod, Hydraulic Piston Rod, Cylinder Piston Rod, Chromium Rods, Hard Chrome Shaft, Induction Rod, Induction Shaft, etc.

Material: JIS S45C, SAE1045, DIN CK45

The hard chromium piston rods produced by our company come with more than JIS S45C material, where the rods first undergo precision milling and processing, and are then put through gard surface chromium treatment, allowing a surface precision level of f7, and a surface hardness reaching HV800 minimum and up, which not only help to improve wear resistance but also help to extend the life cycle of the rods, thus helping the customer save cost.

The corrosion resistances is tested in our own internal salt spray laboratory, and The rods surface heat treatment and hardness reaching HRC55°±2°, and at a hardened depth of between 0.5mm - 3mm, before the rods are put through precision milling and hard chromium treatment for a membrane thickness measuring 20 micron ± 10% to drastically improve the rod's wear resistance, and help to extend the life cycle of the rods.

The furnished products are ideal for a host of heavy machinery, construction equipment, and as position mount for a variety of heavy equipment.

Suzhou Weipeng products such as chromed steel bars and tubes are used in the fabrication of hydraulic and pneumatic cylinders found in agricultural machinery, lifting equipment, product handling equipment, garbage collection, heavy equipment, and many other applications.

Company Capability

Chrome Plated Steel Round Bar/Hard Piston Rod for Pneumatic Cylinder & Shock Absorber
Chrome Plated Steel Round Bar/Hard Piston Rod for Pneumatic Cylinder & Shock Absorber
Chrome Plated Steel Round Bar/Hard Piston Rod for Pneumatic Cylinder & Shock Absorber
Chrome Plated Steel Round Bar/Hard Piston Rod for Pneumatic Cylinder & Shock Absorber
Chrome Plated Steel Round Bar/Hard Piston Rod for Pneumatic Cylinder & Shock AbsorberChrome Plated Steel Round Bar/Hard Piston Rod for Pneumatic Cylinder & Shock Absorber

Our main product specifications are written below for your reference.  If any interest, pls feel free to contact us.
 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  HRC58-60
 Chrome Layer Hardness  above HV800  above HV800
 Chrome Layer Thickness  15μm ~ 25μm ( CUSTOMIZED)   15μm ~ 25μm ( CUSTOMIZED)
 Surface Hardning 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

Chrome Plated Steel Bars:

Our Chrome Plated Bars are produced from medium carbon cold-finished or hot rolled steel bars usually in 1045 grades. The bars are centerless ground, polished, and chrome plated to a minimum thickness of 0.0005", and 0.001" per side. 
Chrome Plated bars are specifically designed to be used for most piston rod applications in hydraulic and pneumatic cylinders.

Induction Hardened Chrome Plated Bars:

Our  Induction Hardened Chrome Plated Bars are produced by using advanced processing techniques usually on JIS S45C, SAE1045 or DIN CK45 steel rods, for surface removal, polishing, induction hardening, followed by hard chrome plating to a thickness minimum of 0.0005" or 0.001" per side. The finished product results in a superior impact resistant bar ideal for high quality piston rods capable of handling tough environments.


Linear Motion Guides, Hydraulic cylinder rods
plastic injection molding machines, construction equipment, rubber molding machines, papermaking machines, printing machines, refrigeration equipment, foods and chemical machinery, loading equipment, fiber spinning equipment, textile machinery, agricultural equipment, automotives, shipbuilding and the like.

 Item   Honed Tube
 Raw Material  DIN ST52, SAE1020
 Pressure & Temperatur 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)

is a cold drawn 1020 steel tube. Produced from piercing hot rolled bar stock, the cold drawing process increases the tube's physical properties reducing the cost of machine time. Cold drawn seamless tubing provides a better uniformed OD and ID, enhanced machinability, increased strength, and tighter tolerances compared to hot finish seamless products


Hydraulic cylinders
Truck and Automotive parts
Heavy equipment
Agricultural components
Auto and Truck Axles, Suspension parts and shock absorbers
High Speed Shafts and rollers
Bearings and Spacers, Roll cages, and many other machined tubular parts.

The raw material we use is the most famous brand in China, which has very high density and stability in the quality. Our products are hightly appreciated by our clients for their competitive price and good quality.

Wish You a Happy New Year.

If you are interested in our company, please feel free to contact us:

ADD: No.98 Changjiang Road, National Hi-Tech District, 215010, Suzhou, P.R.C
Tel: 0086-512-68387269 
Fax: 0086-512-68387269

Auto Gear Box Parts
1. Auto Gear Boxes Used for car parts, our gear box parts can use in BMW,Range Rover,Benz directly( TS 16949 Certified).
2. As customers' requirements, in perfect condition.
3. Aluminium casting, sand casting, die casting, gravity, low pressure die casting, high pressure die casting, casting foundry.
4. Applied software for specification drawings: Pro/E, Auto CAD, Solid work, CAXA UG, CAD/CAM/CAE.
5. Precision machining: CNC, milling machine, drilling machine, numerical lathe, all types of lathe.
6. Surface finish process: polishing, sand blasting, heat treatment, painting, powder coating, anodizing, electroplating, mirror polishing.
7. OEM&ODM service available.
8. Top quality and quick delivery time.

Auto Gear Boxes Advantage:
1. Size precision, smooth surface, high production efficiency.
2. Different surface treatments.
3. Advanced equipment, excellent R&D teams and strict quality control system.

We are the top manufacturers in Ningbo can supply OEM service for Auto Gear Boxes. Welcome to contact us!

Auto Gear Box Parts

Auto Gearbox,Die Casting Gear Boxes,Aluminum Auto Gear Box Parts,Aluminum Auto Gear Box Housing

Ningbo WEIBO Molding&Machine Co.,Ltd. ,