Wholesale Piston Rods Chromes Shock Absorber Piston Rods Precision Tube Seamless Shock Absorber Tubes

• Customization: Available
• Application: Automotive Industry
• Corrosion Resistance: High Corrosion Resistance
• Model NO.: Standard/Customized
• Journal Relative Position Accuracy: 0.001-0.005mm
• Journal Surface Roughness: Ra 0.1 Micro Max
• Material: Chrome Plated Steel
• Shaft Type: Solid Shaft
• Strength: High Strength
• Surface Finish: Polished
• Tolerance: Standard Tolerance
• Selling Units: Single Item
• Single Package Size: 50X30X20.Cm
• Purpose: for Replace/Repair
• Surface Treatment: Chrome Plating &Qpq
• Car Model: Universal
• Chrome Hardness: 900 Hvmin
• Length: 30-1000mm
• Single Gross Weight: 1.000 Kg
• Straightness: 0.02/400mm
• Chrome Thickness: 10~25 M
• out Diameter: 6-60mm
• Specification: custom size
• Trademark: MAX
• Origin: Zhejiang, China

Product Description

Product Description

1. PROCESS INTRODUCTION

The piston rod is hard chromium plating on steel substrate surface coated with a thick layer of chromium plating and its thickness
is in commonly 10 to 30 microns, using the characteristics of chromium improve parts' performance, such as hardness, wear
resistance, heat resistance and corrosion resistant.

The process features of hard chrome plated piston rod:

1) the cathode current efficiency is as high as 25% ~ 35%, and the deposition rate is very fast.
2) high hardness (900 ~ 1200HV), uniform and dense network cracks, good abrasion resistance; Microcracks can be produced, and the number of microcracks can reach 800-2000 pieces/cm (according to the need), and improve the anti-corrosion ability.

3) good dispersion ability of the plating bath, uniform thickness of the coating, not easy to produce the phenomenon of rough blister tumor, and the appearance of chromium layer is bright and smooth;
4) the coating has strong bonding strength with the substrate, and the pretreatment is similar to the traditional technology, and
the operation is easier than the traditional process;
5) the content of trivalent chromium in the bath is allowed to be wide, and it usually does not need to discontinue electrolysis for trivalent chromium;
6) the plating solution contains no fluoride, no rare earth elements, and no corrosion of the workpiece without low power.

 

2. PROCESS FLOW

1). Process flow of hydraulic piston rod.
Connecting rod using 35 steel, processing technology: cold-drawn forming, a turning, a continuous medium frequency induction
hardening, a cylindrical grinding, a fine grinding cylindrical, a fine grinding cylindrical shearing section. at finishing a plating

chromium to hydrogen tempering shearing section. at fine grinding.In order to improve the surface quality and corrosion resistance

of piston rod, super finishing process was added before chrome plating.
2). Piston rod plating process.
Inspection before plating - pack hanging fixture - chemical degreasing, electric lift oil - water - activation pickling - water
washing- the moment, the piston rod chromium plating, recycling water - water washing - unloading hanging fixture - inspection

Application

Piston rod is mainly used in hydraulic pneumatic, engineering machinery, automobile manufacture with the piston rod, guide pillar plastic machinery, packaging machinery, printing machinery, roller, textile machinery, transportation machinery with axis, linear motion with the linear optical axis.

 

Packing

Company Profile

 

 

MAX Auto Parts is the manufacturer and exporter of auto parts.
Main product range: shock absorber, auto coilover, piston rod, stamping part, powder metallurgy, spring, stamping part, tube, oil seal, discs, rubber parts and other auto parts. The partner factories has got the TS16949 certificate.

There is complete production facilities include: CNC machine, lathe machine, grinding machine and so on, some of machine bought from abroad, with high precision. Max also have a series of testing equipment to control quality, such as projector, roughness tester, micro hardness tester, universal tensile machine, Metallography analyzer, thickness tester, salt spray tester.

Max's engineers team with rich experiences in the line of auto parts, they will not only source products for customers, but also provide technical support, production all-time supervision and quality track service. 

OEM and ODM both available . 

 

Max could provide all kinds of inspection service and report include PPAP report , RT, UT, MPI, WPS & PQR and so on.
Max's products have been exported to Russia, Europe, Japan, Korea, Africa, Canada, USA, Australia and so on. 

Max has a good reputation and established long term relationship with customers.
Max aim at got a win-win cooperate with customer, we believe that Your business is our success!
 

FAQ

Q1. Are you a Manufacture or Trading Company?

A1: We are manufacturer and we have licence to export auto parts, we have been in this line more than 10 years. 

 

Q2. What kinds of parts can you supply?

A2: 1. Spring; 2. Coilover; 3. Oil seal; 4. Rubber parts; 5. Powder metallurgy parts

 

Q3. What is your production Lead Time?

A3: 5 working days for goods in stock, 15-45 days for mass products.

 

Q4. What is your payment way?

A4: We accept payment by western union, T/T, L/C. 

Normally, 30% deposit in advance, 70% balance before shipment 

 

Q5. Dispatch Port?

A5: Guangzhou, Ningbo, Shanghai

 

Q6. What other service can you offer?

A6: OEM service, welcome to send us the design drawing to develop a new product line;
Customized service, we can help you to design your packing.

 

Q7. How can I get the warranty?

A7: During the warranty period, any products damaged because of the quality problem can be changed for free.

We provide 1 years warranty start from the purchase date, but it does not cover damages result from any of the following situations: racing accidents, improper installation, disassembly or modifications.