• Ningbo WeiWo Electromechanical Tech Co.,Ltd.
    Mike
    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.
    Brian
    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

PTFE Banded Rear Piston Shock Absorber Parts With Steam Treatment

Place of Origin China
Brand Name WEIWO
Certification IATF16949:2016
Model Number Φ25mm
Minimum Order Quantity 1,023pcs
Price negotiation
Packaging Details According to customer’s demand
Delivery Time Two weeks after payment
Payment Terms T/T, Western Union, L/C
Supply Ability 30,000 pcs per month
Product Details
Product Name Banded Piston Filler Of Bands Customized
Material Of Bands Improved PTFE Color Black
Application Car Rear Shocks Density Of Bands 2.06-2.19 G/cm3
Outer Diameter 32mm Sintering Temp. 375 ℃
High Light

32mm Shock Absorber Parts

,

PTFE Banded rear piston

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2.19g/cm3 Shock Absorber Parts

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Product Description

Elongation @ break ≥ 180% PTFE Banded Piston Produced By Automatic Machine With Steam treatment

 

 

We are a professional company to design and produce PTFE banded shock absorber piston, piston size

 

can be from 20mm to 50mm with different types. We can produce both straight OD and flared OD. we can

 

also deisgn and manufacture automatic banding machine and piston testing machine.

 

 

STEP ONE

 

 

STEP TWO

 

 

STEP THREE

 

 

1.design and sell PTFE disc

 

2.design and sell banding machine

 

 

1.fit with sinter piston

 

2.solve the installation problem, with good seals and elongation @ break

 

 

1.fit with front and rear shock absorber

 

2. reduce cost and good quality guarantee

 

 

 

Product Name: Sintered shock absorber piston


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: 55-90 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 - Packing (+ DP4 bushing / +PTFE band)

 

Application:

 

For automobile, motorcycle and bicycle shock absorber

 

About testing:

 

We can do blow off testing for shock absorber pistons.

 

The purpose of this test is to determine the pressure needed to blow the PTFE band of the piston when

 

traveling in the pressure tube. The test is performed with a constant lateral force applied to the piston

 

during the pressure build up over the piston. The test is stopped when the pressure decreases due to

 

PTFE band failure.

 

Specifications:

 

Physical performance for shock piston

tensile strength

More than 18MPa

elongation @ break

More than 180%

shore hardness (bands)

57 - 61

density

2.06 – 2.19 g/cm3

wear

Less than 50mg

friction coefficient

Less than 0.2

hardness (sinter piston)

HRB60-80

Technical requirements for sinter piston

Raw material F50 - U3 - 66 or FC - 0208

Steam treatment

OD tested by digital air gauge

 

Description:

 

After several years’ effort, we have achieved great success in the enterprise. We
 
increased our workshop this year and developed several new automatic machines which highly improve
 
work efficiency. We have a technical team to develop automatic machine and we improve our pressing
 
machine and other machines to lower the cost and improve efficiency.

 

We are specialized in design and producing PTFE banded shock absorber pistons,at the same

 

time,we design and manufacture automatic skirting machines.

 

Till now we have produced so many different types of shock absorber pistons with the diameter from

 

ø20mm~ø50mm.We make PTFE discs and toolings in our own factory,can control the quality effectively

 

and also can save much time.

          

RAW MATERIAL OF SINTER PARTS:IRON BASED,IRON & COPPER BASED,COPPER

 

BASED,STAINLESS STEEL BASED     

 

RAW MATERIAL OF PTFE DISC:     

 

PTFE+BRONZE     

 

PTFE+CARBON     

 

PTFE+GLASS FIBER     

 

PTFE+OTHER fillers according to cutomers’ demand

 

The detail information of the pistons:  

 

1.Used in front shock absorbers   

 

2.When temperature reach 100℃,expansion ratio ≤+/-1%

 

3.Using the testing ring,with the shock absorber oil,max frictional force is 15N

 

4.Piston can get through freely of the certain size of cylinder with 2N force   

 

5.PTFE tensile strength ≥18MPa,elongation @ break ≥200%  

 

6.Tight integration between piston and PTFE disc.PTFE won't fall off when working in the cylinder.   

 

Applications:

 

Car or motorbike shock absorbers

 

Competitive Advantage:

 

1. Consistency in size

 

2. Infrared ray detect the diameter

 

3. Strict control plan

 

4.100% testing for outer diameter

 

Picture show:

PTFE Banded Rear Piston Shock Absorber Parts With Steam Treatment 0

 

PTFE Banded Rear Piston Shock Absorber Parts With Steam Treatment 1

 

PTFE Banded Rear Piston Shock Absorber Parts With Steam Treatment 2