Ningbo XiaYi Electromechanical Technology Co.,Ltd.
| Outer diameter | 31mm |
| Payment Terms | T/T, |
| Filler of bands | Carbon fiber |
| Application | car shock absorber |
| Material of bands | Filled PTFE |
| Color | black |
| Delivery Time | One week after payment |
| Density of bands | 2.14 g/cm3 |
| Supply Ability | 300,000pcs per month |
| Product Name | Banded Piston |
| Working Temp. | 260 ℃ |
| Packaging Details | According to customer’s demand |
| Model Number | Φ31mm |
| Brand Name | XIAYI |
| Certification | IATF16949:2016 |
| Place of Origin | China |
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Product Specification
| Outer diameter | 31mm | Payment Terms | T/T, |
| Filler of bands | Carbon fiber | Application | car shock absorber |
| Material of bands | Filled PTFE | Color | black |
| Delivery Time | One week after payment | Density of bands | 2.14 g/cm3 |
| Supply Ability | 300,000pcs per month | Product Name | Banded Piston |
| Working Temp. | 260 ℃ | Packaging Details | According to customer’s demand |
| Model Number | Φ31mm | Brand Name | XIAYI |
| Certification | IATF16949:2016 | Place of Origin | China |
| High Light | Multi Groove PTFE banded piston ，Carbon fiber filled PTFE piston ，High temperature 260℃ banded piston | ||
A Banded Piston is a critical internal component used in automotive hydraulic shock absorbers. It consists of:
Unlike conventional metal-to-cylinder contact designs, the piston band provides a controlled sliding interface between the piston and cylinder wall.
XIAYI specializes in automotive suspension precision components, especially powder metallurgy and hydraulic damper internal parts. Our banded piston solutions focus on secure piston band retention through optimized design and manufacturing processes.
Manufactured using high-performance iron-based powder metallurgy materials with excellent dimensional stability and mechanical strength.
| Material Characteristic | Performance Benefit |
|---|---|
| High density | Improved impact resistance |
| Stable metallurgical structure | Better fatigue durability |
| Controlled composition | Consistent mechanical properties |
| Excellent formability | Complex design capability |
Produced using advanced low-friction materials including modified PTFE compounds, engineering polymers, and wear-resistant composite materials.
The piston band creates a protective sliding layer that reduces direct metal contact, surface damage, friction heat, and operating noise.
Benefits for vehicle manufacturers:
Maintains proper piston alignment to prevent uneven clearance, tilting movement, and abnormal wear.
Ensures consistent performance:
Designed to withstand millions of movement cycles, continuous hydraulic pressure changes, temperature variation, and road vibration impact.
Piston band retention depends heavily on groove accuracy. Critical control parameters include:
| Control Item | Purpose |
|---|---|
| Groove width | Ensures proper band positioning |
| Groove depth | Controls retention strength |
| Groove profile | Prevents band movement |
| Surface quality | Improves assembly reliability |
Poor groove control may lead to loose piston bands, reduced retention force, and premature failure.
| Customer Concern | XIAYI Solution |
|---|---|
| Piston band detachment risk | Strict pull-out force testing |
| Batch variation | SPC process monitoring |
| Excessive wear | Material and friction optimization |
| Assembly inconsistency | Controlled assembly process |
| Quality complaints | Traceability management |
Company Details
Business Type:
Manufacturer
Year Established:
2006
Total Annual:
1500000-5000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Founded in 2006 and headquartered in the strategic port city of Ningbo, China, XIAYI is a premier high-tech manufacturer specializing in the research, development, and production of precision shock absorber components and automated assembly equipment. With nearly two decades of indust... Founded in 2006 and headquartered in the strategic port city of Ningbo, China, XIAYI is a premier high-tech manufacturer specializing in the research, development, and production of precision shock absorber components and automated assembly equipment. With nearly two decades of indust...
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