• 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

Carbon Fiber As Filler Ptfe Banded Piston With Density 2.18 , Car Shock Absorber Parts

Place of Origin China
Brand Name WEIWO
Certification ISO9001:2008
Model Number Φ30.5 mm
Minimum Order Quantity 2,050pcs
Price negotiation
Packaging Details Neutral package
Delivery Time One week after payment
Payment Terms T/T, Western Union
Supply Ability 300,000pcs per month
Product Details
Product Name Banded Piston Density Of Sinter Piston More Than 6.5
Material Of Bands Filled PTFE Tooling Produce In House
Application Front Shock Absorber Density Of Bands 2.06-2.19 G/cm3
Outer Diameter 30.445-30.495mm Shore Hardness 57-67
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shock absorber piston


shock absorber parts

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Product Description

Carbon Fiber As Filler Ptfe Banded Piston With Density 2.18 , Car Shock Absorber Parts



Our company has both automatic and manual machine.


For mass production order, we will choose automatic machine, can reach about 4000 ~ 5000 pcs per shift


per one machine. 


For samples and orders with small quantity, we will still use manual machine because we need to change


the toolings very often and will waste time.


But banded pistons from both automatic and manual machine, all have good appearance, consistent size


and properties.




Physical performance for shock piston

tensile strength

More than 15MPa

elongation @ break

More than 200%

shore hardness

57 - 61


2.06 – 2.19 g/cm3


Less than 50mg

friction coefficient

Less than 0.3

highest working temperature





We produce different size of shock absorber pistons. These pistons can be used in different car or


motorcycle shock absorbers.


Sinter pistons based, band PTFE rings on outside, can assure the good seal and wear resistance.


Processing for sinter pistons    


Mixing powder——Forming——Sintering——Sizing——After treatment——Steam treatment——Oil




There are plenty of testing machines in our company.


Tensile testing machine which can test tensile strength & elongation @ break according to GB/T




abrasion testing machine which can test friction coefficient & abrasion loss according to GB/T3960-




Density balance can test material density to assure the material quality and homogeneous distribution


Shore Hardness (D) tester


Rockwell hardness tester


Projecting machine


We also develop the testing machines by our team workers. For example: blow-off testing machine,


fatigue testing machine and friction testing machine.


Size: 30# PISTON


PTFE piston ring banded on sinter piston


PTFE coated bushing reduces wear


Four round holes & six square holes design


Shock Absorber Type: Hydraulic


Wear resistant piston ring reduces friction and possibility of leakage


Certification: ISO/TS16949




Used in car or motorbike shock absorbers


Competitive Advantage:


We can produce bands rings by itself to low down the cost and control the quality at home, at the same


time we can design and produce automatic banding machine and non-standard testing machine, can


test drawing force testing and oil immersion testing.


Picture show:

Carbon Fiber As Filler Ptfe Banded Piston With Density 2.18 , Car Shock Absorber Parts 0