• Ningbo WeiWo Electromechanical Tech Co.,Ltd.
    We do business with each other for long time and will continue our cooperation. Quality partner!
  • Ningbo WeiWo Electromechanical Tech Co.,Ltd.
    Alexiou Aris
    Good quality and competitive price, I'm sure we will go further and further!
  • Ningbo WeiWo Electromechanical Tech Co.,Ltd.
    Work together long time, we like friends each other, easy to get along with, very pleasant cooperation!
Contact Person : Leela
Phone Number : 86-13586885132
WhatsApp : +8613586885132

Filled PTFE Low Friction Banded Rear Shock Piston Hardness 57

Place of Origin China
Brand Name WEIWO
Certification IATF16949:2016
Model Number Φ20mm
Minimum Order Quantity 500pcs
Price USD0.31
Packaging Details Packed in carton firstly and then reinforced with wooden case for outer packing
Delivery Time Two weeks working day
Payment Terms T/T, Western Union, L/C
Supply Ability 80,000 pcs per month
Product Details
Product Name Banded Piston Density Of Sinter Piston More Than 6.5g/cm3
Material Of Bands Fillled PTFE Application Rear Shocks
Density Of Bands 2.06-2.19 G/cm3 Size 20 X 6 X 10 Mm
High Light

Hardness 57 shock piston


Filled PTFE shock piston


Banded Rear Shock Piston

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Product Description

Low Friction Banded Piston 35# For Shock Absorber Can Stand Blow - Off Test In Our Plant




Physical performance for shock piston

tensile strength

More than 15MPa

elongation @ break

More than 200%

shore hardness

57 - 61


2.15 – 2.19 g/cm3


Less than 50mg

friction coefficient

Less than 0.3

highest working temperature





Low friction and good seal special design 20# automotive Shock Absorber Piston


We are engaged in developing and manufacturing different kinds of shock absorber pistons,


Powder metallurgy based, with PTFE material banding outside, using a special way to combine them


together. They have advantages of low friction, good seal etc.


The products have passed the Test center, Shanghai Plastic Research Institute. We have testing


machines in our company too and have set up good cooperative relationship with some big shock


absorber factories home and abroad.


Our mass production piston types are: Φ20, Φ25, Φ27, Φ30, Φ31, Φ32, Φ35, Φ36, Φ40, Φ45......


At this moment, we can produce bigget size is 60mm




•      The pistons are sold to secondary market


•      Diameter must be coaxial A=0.05


•      Even banding surface


•      Net weight is 18.5g


•      Pistons can do frictional performance test according to the customer's demand.




1. Wear and corrosion resistance


2. Possess unique knowledge


3. Efficiency steaming treatment


4. It is available for different types of vehicles


5. Suitable for different road conditions


6. Reduces friction and ensure smooth rod reaction


7. Reliable and superior quality


8. PTFE banded piston


9. It is equipped with piston rings to provide a good seal between the cylinder wall and piston


10. Increased seal durability




Car or motorbike shock absorbers


Competitive Advantage:


Produce PTFE rings by ourselves

Design and manufacture automatic banding machine

Has a complete set of testing machine


Process flow chart for piston


Filled PTFE Low Friction Banded Rear Shock Piston Hardness 57 0


Picture show:

Filled PTFE Low Friction Banded Rear Shock Piston Hardness 57 1