China Wholesale Shock Absorber Piston Rod Suppliers - Shock struts powder Metallurgy Parts ( piston , base valve , rod guide ) for car and motorcycle – Max

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It really is a good way to further improve our goods and service. Our mission would be to acquire inventive items to buyers with a very good encounter for Shock Absorber Wrench, Hard Chrome Rod, Coil Spring Shock Absorber, Should you be fascinated in any of our products and services, remember to do not hesitate to make contact with us. We're ready to reply you inside of 24 several hours soon after receipt of one's ask for and also to develop mutual un-limited advantages and organization in around potential.
China Wholesale Shock Absorber Piston Rod Suppliers - Shock struts powder Metallurgy Parts ( piston , base valve , rod guide ) for car and motorcycle – Max Detail:

Our factory located in China , Ningbo City .

Here is some video of our factory production line .

Max Auto Parts ltd is China top 2 manufacturers in shock struts ,Shock absorber damper industrial .

The Sintered parts piston , base valve and rod guide play important role in shock absorber ,

It is not a secret that in the past some China factories not care about the quality , that caused many problem , in this situation , our factory by improve technical , changing the machines , the precision and quality have achieve the world top shock absorber manufacturer’s approve , like Bilstein ,  VW .

Now our factory have got the IATF TS16949 certificate .

1.Piston, bottom valve, rod guide made by powder metallurgy technology.Using fe-c-cu powder, the mould is pressed, sintered and machined.
2.Product features:

The piston and the bottom valve mainly provide damping for the shock absorber ,rod guide mainly guide for the movement of piston rod.

Technological process: mixing powder – forming – sintering – cleaning -Steam treatment – Bending-Press bushing-Appearance inspection, packing

Mixing powder: Fe – C – Cu powder by high density sieve to remove impurities, automatic blending machine 360 ° rotating more than 4 hours, make the material mix evenly

Molding: precision mould with automatic CNC hydraulic press to ensure the density of all parts meet the process requirements after pressing.

Sintering: the product is controlled by the net belt type sintering furnace, which ensures the mechanical properties and hardness of the products to meet the technical requirements.

Oil immersion: place the product in a high pressure vessel so that the oil can fully penetrate into the product’s pores and avoid the rust of the later cycle.

Plastic: precision mould with full automatic CNC hydraulic press, the product density and mechanical properties are further improved after pressing, and the dimensions meet the requirements of the drawing.

Machining: finish the hole, groove and other details of the product.

Cleaning: the mesh belt adopts ultrasonic cleaning machine to remove impurities and iron filings.

Steam treatment: the product is treated by steam in the electric furnace, which improves the mechanical properties of the product, and the surface oxidation layer helps to prevent rust.

Packing: the piston is covered by a fully automatic numerical control machine covering the PTFE lubrication belt.

Press bushing: pressed into DU bushing.

Appearance inspection, packing.

3.Specification :

Product Details

Product Name Powder Metal Sintered Part for Shock Absorber
Material (MPIF 35) FC-0205 (DIN 30910-4) Sint C10, Fe, Balance, Cu 1.5-3.9%, C 0.3-0.6%
Density 6.4-6.9 g/cm3 after steam oxidation
Hardness 60-115 HRB, loading 1 kN, diameter of ball 1/16″
Surface Treatment Steam oxidation, 2 hours, Fe3O4: 0.004-0.005mm, degree of oxidation 2-4%
Unspecified Tolerance ISO 2768 – m / H14, h14, +- IT14/2
Apperance No crumbling, cracks, exfoliation, voids, looseness, metal pitting and other defects
Process Flow Powder mixing – Forming – Sintering – Oil impregnation – Sizing -
Ultrasonic cleaning – Steam oxidation – Oil impregnation – Final
inspection – (+ DP4 bushing / +PTFE band) Packing
Application For automobile, motorcycle and bicycle shock absorber

Our Advantages:

1. More than current 3000 moulds ,save your mold cost
2. ISO/TS 16949:2009 certificate
3.Competitive price
4.Strictly quality control capacity of APQPFEMAMSAPPAPSPC

4.Production Facilities

09 (4)

09 (6)

模具设备

09 (7) 09 (1)

Examination Facilities

09 (2) 09 (3)


Product detail pictures:

China Wholesale Shock Absorber Piston Rod Suppliers -  Shock struts powder Metallurgy Parts ( piston , base valve , rod guide ) for car and motorcycle  – Max detail pictures

China Wholesale Shock Absorber Piston Rod Suppliers -  Shock struts powder Metallurgy Parts ( piston , base valve , rod guide ) for car and motorcycle  – Max detail pictures

China Wholesale Shock Absorber Piston Rod Suppliers -  Shock struts powder Metallurgy Parts ( piston , base valve , rod guide ) for car and motorcycle  – Max detail pictures

China Wholesale Shock Absorber Piston Rod Suppliers -  Shock struts powder Metallurgy Parts ( piston , base valve , rod guide ) for car and motorcycle  – Max detail pictures

China Wholesale Shock Absorber Piston Rod Suppliers -  Shock struts powder Metallurgy Parts ( piston , base valve , rod guide ) for car and motorcycle  – Max detail pictures

China Wholesale Shock Absorber Piston Rod Suppliers -  Shock struts powder Metallurgy Parts ( piston , base valve , rod guide ) for car and motorcycle  – Max detail pictures


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abide by the contract", conforms towards the market requirement, joins during the market competition by its good quality likewise as provides additional comprehensive and great services for customers to let them turn out to be big winner. The pursue of your enterprise, is the clients' fulfillment for China Wholesale Shock Absorber Piston Rod Suppliers - Shock struts powder Metallurgy Parts ( piston , base valve , rod guide ) for car and motorcycle – Max , The product will supply to all over the world, such as: Poland, Afghanistan, Thailand, If you give us a list of merchandise you are interested in, along with makes and models, we can send you quotations. Remember to email us directly. Our goal is to establish long-term and mutually profitable business relationships with domestic and overseas clients. We look forward to receiving your reply soon.
  • High Quality, High Efficiency, Creative and Integrity, worth having long-term cooperation! Looking forward to the future cooperation!
    5 Stars By Nina from America - 2018.05.13 17:00
    Although we are a small company, we are also respected. Reliable quality, sincere service and good credit, we are honored to be able to work with you!
    5 Stars By Nora from Latvia - 2018.09.29 17:23
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