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Low Friction High Retention Banded Piston for Stable Shock Absorber Performance
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Low Friction High Retention Banded Piston for Stable Shock Absorber Performance
  • name
  • name
  • name

Low Friction High Retention Banded Piston for Stable Shock Absorber Performance

MOQ: 500pcs
Price: negotiation
Standard Packaging: Packed in carton firstly and then reinforced with wooden case for outer packing
Delivery Period: 10 working days after payment
Payment Method: T/T,,L/C
Supply Capacity: 30,000 pcs per month
Detail Information
Product Description
Detail Information
Place of Origin
Ningbo, China
Brand Name
XIAYI
Certification
IATF16949:2016
Model Number
Φ36mm
Product Name:
Banded Piston
Density Of Sinter Piston:
More Than 6.5g/cm3
Material Of Bands:
Fillled PTFE
Application:
Car Shocks
Density Of Bands:
2.06-2.19 G/cm3
Outer Diameter:
36.05-36.30 Mm
Product Description
Low Friction High Retention Banded Piston for Stable Shock Absorber Performance

Engineered for precision shock absorber applications, this D36 banded piston delivers exceptional low-friction operation and high retention force to ensure consistent damping performance across the full service life. Manufactured by XIAYI with advanced powder metallurgy and PTFE banding technology, it meets IATF16949:2016 quality standards for automotive-grade components.

Core Advantages at a Glance:

  • Fe-C-Cu sintered body with filled PTFE banding ring for optimal wear resistance
  • Ultra-low friction coefficient below 0.3 for smooth, quiet shock absorber operation
  • High retention design prevents band slippage even under extreme load cycling
  • IATF16949:2016 certified manufacturing ensures batch-to-batch consistency
  • D36XD8X12 precision dimensions with tight OD tolerance of 36.05-36.30 mm
Technical Specifications

Physical performance for shock piston

tensile strength

More than 15MPa

elongation @ break

More than 200%

shore hardness

57 - 61

density

2.15 - 2.19 g/cm3

wear

Less than 50mg

friction coefficient

Less than 0.3

highest working temperature

260℃
Dimensional Data

Overall Size

D36 X D8 X 12 mm

Nether OD

35.90 - 35.94 mm

Upper OD

36.05 - 36.30 mm

Banded Height (incl. iron part)

11.20 - 11.70 mm

Bore Size

36 mm

Groove Fill

Min 0.34 mm

PTFE Disc Material

PTFE + Carbon (or customized)
Product Description

This banded piston utilizes a high-density Fe-C-Cu sintered steel body combined with a filled PTFE banding ring. The unique material pairing achieves the ideal balance between structural rigidity and surface lubricity, allowing the piston to withstand millions of compression-rebound cycles without performance degradation.

XIAYI produces a complete range of suspension pistons, shock absorber pistons, rod guides, valve seats, and other powder metallurgy components for shock absorber systems. Our in-house tooling design, automated banding machines, and non-standard testing equipment ensure full process control from raw powder to finished assembly.

Key Features & Benefits
  • Advanced Sintered Body: Fe-C-Cu powder metallurgy construction achieves over 6.5 g/cm3 density, providing the mechanical strength needed for high-stress damper environments.
  • Filled PTFE Banding: PTFE ring compounded with carbon or customer-specified fillers dramatically reduces sliding friction while maintaining dimensional stability under thermal cycling.
  • Precision Groove Geometry: Minimum 0.34 mm groove fill depth ensures the PTFE band remains securely seated, eliminating the risk of band dislodgement during operation.
  • Fatigue-Tested Design: Every piston design undergoes drawing force testing to verify no band slippage occurs after repeated load cycles.
  • Close Tolerances: Outer diameter controlled within a 0.25 mm window (36.05-36.30 mm) for consistent fit inside shock absorber tubes.
Common Industry Challenges & How We Address Them
"The PTFE band on our current supplier's pistons keeps peeling off after a few thousand cycles."
XIAYI pistons use a proprietary heat-pressing process that bonds the PTFE ring at the molecular level to the sintered iron body. We perform 100% drawing force testing on each batch to guarantee band retention exceeds application requirements.
"Our shock absorbers develop noise after 20,000 km due to piston wear."
With a friction coefficient below 0.3 and wear loss under 50 mg, the PTFE banded surface maintains its low-friction properties far longer than conventional designs. This directly translates to quieter, longer-lasting shock absorbers.
"We receive inconsistent quality from batch to batch, causing assembly line disruptions."
Our IATF16949:2016 certified production system includes complete testing equipment for material composition, density, hardness, and dimensional inspection. Every shipment comes with traceable quality documentation.
"High-temperature operation causes the piston to seize in the shock tube."
Our PTFE banding compound is rated for continuous operation up to 260℃, ensuring reliable performance even under severe thermal conditions encountered in heavy-duty and performance vehicle applications.
"Lead times are too long when we need custom piston dimensions for new product development."
With in-house tooling design and manufacturing capability, XIAYI can produce custom-sized pistons with significantly shorter lead times compared to suppliers who outsource tooling. Complex multi-level designs are our specialty.
Manufacturing Process

The banded piston undergoes a rigorous 10-step production sequence to achieve the precision and reliability required for automotive shock absorber applications:

1. Powder Blending 2. PTFE Cylinder Compression 3. Sintering 4. PTFE Disc Production 5. Pre-pressing 6. Heat Pressing 7. Molding 8. Deburring 9. Inspection 10. Packaging

Each step is monitored and controlled in-house. XIAYI designs and builds its own automatic banding machines and non-standard testing equipment, enabling full process optimization without depending on third-party equipment suppliers.

Applications
  • Passenger car front and rear shock absorbers
  • Motorcycle suspension dampers
  • Light commercial vehicle shock absorber systems
  • Performance and aftermarket suspension upgrades
Frequently Asked Questions
Q: What is the minimum order quantity for this banded piston?
The standard MOQ is 500 pieces per order. For trial orders or prototype development, we can accommodate smaller quantities upon request.
Q: Can you customize the dimensions or PTFE filler material?
Yes. XIAYI offers full customization on dimensions (diameter, bore, height, groove design) and PTFE filler material. Common filler options include carbon fiber, glass fiber, graphite, bronze, and MoS2. We can also develop custom filler formulations based on your specific performance requirements.
Q: What quality certifications do you hold?
Our manufacturing facility is certified to IATF16949:2016, the global automotive quality management standard. We provide material certificates, dimensional reports, and performance test data with every shipment.
Q: How do you ensure the PTFE band will not slip during shock absorber operation?
We perform drawing load tests on every batch of banded pistons. The test applies axial force to verify the PTFE ring remains firmly seated with zero slippage. This is a mandatory quality gate before shipment.
Q: What is your typical delivery time?
Standard delivery time is 10 working days after payment confirmation. For urgent orders, we offer expedited production scheduling. Please contact our sales team with your timeline requirements.
Q: Do you offer samples for testing and validation?
Yes, we provide sample pistons for customer validation and testing. Samples can be produced to your exact specifications. Please share your technical drawings or dimensional requirements, and we will prepare samples for your evaluation.
Q: What packaging do you use to prevent damage during shipping?
Pistons are packed in cartons with individual separators, then reinforced with wooden cases for outer packing. This double-layer protection ensures the components arrive in perfect condition, free from impact damage or surface contamination.
Why Choose XIAYI
  • Vertical Integration: In-house tooling design, powder metallurgy production, PTFE banding, and testing equipment manufacturing — no outsourcing of critical processes.
  • Automotive-Grade Quality: IATF16949:2016 certified, ensuring the rigorous quality systems demanded by global automotive OEMs and Tier-1 suppliers.
  • Proven Experience: Years of specialization in shock absorber sintered components with exports to Japan and other demanding markets.
  • Competitive Economics: Aggressive pricing enabled by automated production lines with annual capacity exceeding 20,000,000 pieces.
  • Engineering Support: Our technical team can review your drawings, suggest design optimizations, and provide feasibility analysis before tooling begins.

Contact us today to discuss your banded piston requirements. Send your technical drawings or specifications for a prompt quotation and free technical consultation.

Tags: 

shock absorber reconditioning,  

shock absorber parts,  

shock absorber piston

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Products
PRODUCTS DETAILS
Products

Shock Absorber Parts

Shock Absorber Piston

Banded Piston

Shock Absorber Mounting

Shock Absorber Guide

Shock Base Valve

Shock Oil Seal

Shock Valve Shims

Shock Absorber Bracket

Shock Absorber Piston Rod

Shock Piston Machine

Du Bushing

PTFE Bands

PTFE Ring Gasket

PTFE Parts

Guide Ring
Low Friction High Retention Banded Piston for Stable Shock Absorber Performance
  • name
  • name
  • name
Low Friction High Retention Banded Piston for Stable Shock Absorber Performance
MOQ: 500pcs
Price: negotiation
Standard Packaging: Packed in carton firstly and then reinforced with wooden case for outer packing
Delivery Period: 10 working days after payment
Payment Method: T/T,,L/C
Supply Capacity: 30,000 pcs per month
Detail Information
Product Description
Detail Information
Place of Origin
Ningbo, China
Brand Name
XIAYI
Certification
IATF16949:2016
Model Number
Φ36mm
Product Name:
Banded Piston
Density Of Sinter Piston:
More Than 6.5g/cm3
Material Of Bands:
Fillled PTFE
Application:
Car Shocks
Density Of Bands:
2.06-2.19 G/cm3
Outer Diameter:
36.05-36.30 Mm
Minimum Order Quantity:
500pcs
Price:
negotiation
Packaging Details:
Packed in carton firstly and then reinforced with wooden case for outer packing
Delivery Time:
10 working days after payment
Payment Terms:
T/T,,L/C
Supply Ability:
30,000 pcs per month
Product Description
Low Friction High Retention Banded Piston for Stable Shock Absorber Performance

Engineered for precision shock absorber applications, this D36 banded piston delivers exceptional low-friction operation and high retention force to ensure consistent damping performance across the full service life. Manufactured by XIAYI with advanced powder metallurgy and PTFE banding technology, it meets IATF16949:2016 quality standards for automotive-grade components.

Core Advantages at a Glance:

  • Fe-C-Cu sintered body with filled PTFE banding ring for optimal wear resistance
  • Ultra-low friction coefficient below 0.3 for smooth, quiet shock absorber operation
  • High retention design prevents band slippage even under extreme load cycling
  • IATF16949:2016 certified manufacturing ensures batch-to-batch consistency
  • D36XD8X12 precision dimensions with tight OD tolerance of 36.05-36.30 mm
Technical Specifications

Physical performance for shock piston

tensile strength

More than 15MPa

elongation @ break

More than 200%

shore hardness

57 - 61

density

2.15 - 2.19 g/cm3

wear

Less than 50mg

friction coefficient

Less than 0.3

highest working temperature

260℃
Dimensional Data

Overall Size

D36 X D8 X 12 mm

Nether OD

35.90 - 35.94 mm

Upper OD

36.05 - 36.30 mm

Banded Height (incl. iron part)

11.20 - 11.70 mm

Bore Size

36 mm

Groove Fill

Min 0.34 mm

PTFE Disc Material

PTFE + Carbon (or customized)
Product Description

This banded piston utilizes a high-density Fe-C-Cu sintered steel body combined with a filled PTFE banding ring. The unique material pairing achieves the ideal balance between structural rigidity and surface lubricity, allowing the piston to withstand millions of compression-rebound cycles without performance degradation.

XIAYI produces a complete range of suspension pistons, shock absorber pistons, rod guides, valve seats, and other powder metallurgy components for shock absorber systems. Our in-house tooling design, automated banding machines, and non-standard testing equipment ensure full process control from raw powder to finished assembly.

Key Features & Benefits
  • Advanced Sintered Body: Fe-C-Cu powder metallurgy construction achieves over 6.5 g/cm3 density, providing the mechanical strength needed for high-stress damper environments.
  • Filled PTFE Banding: PTFE ring compounded with carbon or customer-specified fillers dramatically reduces sliding friction while maintaining dimensional stability under thermal cycling.
  • Precision Groove Geometry: Minimum 0.34 mm groove fill depth ensures the PTFE band remains securely seated, eliminating the risk of band dislodgement during operation.
  • Fatigue-Tested Design: Every piston design undergoes drawing force testing to verify no band slippage occurs after repeated load cycles.
  • Close Tolerances: Outer diameter controlled within a 0.25 mm window (36.05-36.30 mm) for consistent fit inside shock absorber tubes.
Common Industry Challenges & How We Address Them
"The PTFE band on our current supplier's pistons keeps peeling off after a few thousand cycles."
XIAYI pistons use a proprietary heat-pressing process that bonds the PTFE ring at the molecular level to the sintered iron body. We perform 100% drawing force testing on each batch to guarantee band retention exceeds application requirements.
"Our shock absorbers develop noise after 20,000 km due to piston wear."
With a friction coefficient below 0.3 and wear loss under 50 mg, the PTFE banded surface maintains its low-friction properties far longer than conventional designs. This directly translates to quieter, longer-lasting shock absorbers.
"We receive inconsistent quality from batch to batch, causing assembly line disruptions."
Our IATF16949:2016 certified production system includes complete testing equipment for material composition, density, hardness, and dimensional inspection. Every shipment comes with traceable quality documentation.
"High-temperature operation causes the piston to seize in the shock tube."
Our PTFE banding compound is rated for continuous operation up to 260℃, ensuring reliable performance even under severe thermal conditions encountered in heavy-duty and performance vehicle applications.
"Lead times are too long when we need custom piston dimensions for new product development."
With in-house tooling design and manufacturing capability, XIAYI can produce custom-sized pistons with significantly shorter lead times compared to suppliers who outsource tooling. Complex multi-level designs are our specialty.
Manufacturing Process

The banded piston undergoes a rigorous 10-step production sequence to achieve the precision and reliability required for automotive shock absorber applications:

1. Powder Blending 2. PTFE Cylinder Compression 3. Sintering 4. PTFE Disc Production 5. Pre-pressing 6. Heat Pressing 7. Molding 8. Deburring 9. Inspection 10. Packaging

Each step is monitored and controlled in-house. XIAYI designs and builds its own automatic banding machines and non-standard testing equipment, enabling full process optimization without depending on third-party equipment suppliers.

Applications
  • Passenger car front and rear shock absorbers
  • Motorcycle suspension dampers
  • Light commercial vehicle shock absorber systems
  • Performance and aftermarket suspension upgrades
Frequently Asked Questions
Q: What is the minimum order quantity for this banded piston?
The standard MOQ is 500 pieces per order. For trial orders or prototype development, we can accommodate smaller quantities upon request.
Q: Can you customize the dimensions or PTFE filler material?
Yes. XIAYI offers full customization on dimensions (diameter, bore, height, groove design) and PTFE filler material. Common filler options include carbon fiber, glass fiber, graphite, bronze, and MoS2. We can also develop custom filler formulations based on your specific performance requirements.
Q: What quality certifications do you hold?
Our manufacturing facility is certified to IATF16949:2016, the global automotive quality management standard. We provide material certificates, dimensional reports, and performance test data with every shipment.
Q: How do you ensure the PTFE band will not slip during shock absorber operation?
We perform drawing load tests on every batch of banded pistons. The test applies axial force to verify the PTFE ring remains firmly seated with zero slippage. This is a mandatory quality gate before shipment.
Q: What is your typical delivery time?
Standard delivery time is 10 working days after payment confirmation. For urgent orders, we offer expedited production scheduling. Please contact our sales team with your timeline requirements.
Q: Do you offer samples for testing and validation?
Yes, we provide sample pistons for customer validation and testing. Samples can be produced to your exact specifications. Please share your technical drawings or dimensional requirements, and we will prepare samples for your evaluation.
Q: What packaging do you use to prevent damage during shipping?
Pistons are packed in cartons with individual separators, then reinforced with wooden cases for outer packing. This double-layer protection ensures the components arrive in perfect condition, free from impact damage or surface contamination.
Why Choose XIAYI
  • Vertical Integration: In-house tooling design, powder metallurgy production, PTFE banding, and testing equipment manufacturing — no outsourcing of critical processes.
  • Automotive-Grade Quality: IATF16949:2016 certified, ensuring the rigorous quality systems demanded by global automotive OEMs and Tier-1 suppliers.
  • Proven Experience: Years of specialization in shock absorber sintered components with exports to Japan and other demanding markets.
  • Competitive Economics: Aggressive pricing enabled by automated production lines with annual capacity exceeding 20,000,000 pieces.
  • Engineering Support: Our technical team can review your drawings, suggest design optimizations, and provide feasibility analysis before tooling begins.

Contact us today to discuss your banded piston requirements. Send your technical drawings or specifications for a prompt quotation and free technical consultation.

Tags: 

shock absorber reconditioning,

shock absorber parts,

shock absorber piston

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