Ningbo XiaYi Electromechanical Technology Co.,Ltd.
| Delivery Time | 20 working days for new samples and tooling |
| Plating | No |
| Payment Terms | T/T,,L/C |
| material | CK101 |
| Press | 40-60T |
| Hardness | HR60-85 |
| Application | Shock absorber |
| Supply Ability | 500,000pcs per month |
| Product Name | valve washer |
| Packaging Details | Standard export package |
| Model Number | K25-00-5003-X |
| Brand Name | XIAYI |
| Certification | IATF16949:2016 |
| Place of Origin | NINGBO,CHINA |
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Product Specification
| Delivery Time | 20 working days for new samples and tooling | Plating | No |
| Payment Terms | T/T,,L/C | material | CK101 |
| Press | 40-60T | Hardness | HR60-85 |
| Application | Shock absorber | Supply Ability | 500,000pcs per month |
| Product Name | valve washer | Packaging Details | Standard export package |
| Model Number | K25-00-5003-X | Brand Name | XIAYI |
| Certification | IATF16949:2016 | Place of Origin | NINGBO,CHINA |
| High Light | Precision shock valve shims ，Thickness shock valve shims ，Damping adjustment valve shims | ||
XIAYI Precision Thickness Shock Valve Shims represent the highest standard in dimensional accuracy for damper tuning applications. Where standard shims provide general thickness ranges, our precision thickness shims deliver tightly controlled tolerances that translate directly into predictable, repeatable damping force output. Utilizing premium spring steel materials (SK4, SK5, 65MN, CK101, C100S, SUS, 20C) with thickness capabilities from 0.1mm to 3.5mm, these shims are manufactured under IATF16949:2016 certified processes with each batch verified against calibrated measurement standards. For suspension engineers who treat shim thickness as a tuning parameter rather than an approximate dimension, XIAYI precision thickness shims provide the accuracy your damping calculations demand.
Tolerance Challenges We EliminateChallenge 1: Damping Force Variability from Thickness Deviation — Shim deflection is proportional to the cube of its thickness — a mere 5% thickness error produces approximately 16% variation in damping force. This non-linear relationship makes thickness precision the single most critical quality parameter for consistent damper performance. XIAYI's precision manufacturing minimizes this error source.
Challenge 2: Stack Height Accumulation Errors — In multi-shim stacks, individual thickness tolerances compound. A stack of 10 shims, each at the tolerance limit, can produce a cumulative error significant enough to affect valve stack preload and alter the designed damping curve. Our tight individual tolerances prevent tolerance stacking from degrading stack-level performance.
Challenge 3: Inconsistent Damper Matching (Left vs. Right) — Vehicle manufacturers require matched left-right damper pairs. Thickness variation in shims is a leading cause of damper mismatch. Our precision thickness control ensures symmetric damping characteristics, eliminating the need for post-production selective assembly or damping force grading.
| Grade | Key Properties | Thickness Range |
|---|---|---|
| SK4 / SK5 | High carbon tool steel, superior wear resistance | 0.1mm – 3.5mm |
| 65MN | Manganese spring steel, high toughness & fatigue life | 0.1mm – 3.5mm |
| CK101 / C100S | Balanced carbon spring steel, general purpose | 0.1mm – 3.5mm |
| SUS | Stainless steel, corrosion resistant | 0.1mm – 3.5mm |
| 20C | Low carbon, excellent formability for thin gauges | 0.1mm – 3.5mm |
| Parameter | Specification |
|---|---|
| Material Options | SK4, SK5, 65MN, CK101, C100S, SUS, 20C |
| Thickness Range | 0.1mm – 3.5mm (precision tolerance) |
| Hardness | HR60-85 |
| Mold Library | 3,500+ configurations |
| Certification | IATF16949:2016 |
| Availability | OEM / ODM |
| Supply Capacity | 500,000 pcs per month |
Q: What thickness tolerance can I expect on a precision shim?
Standard precision tolerance is ±0.03mm, which is approximately 20% of material thickness for typical gauges. For ultra-critical applications, tighter tolerances are achievable through post-process sorting or grinding — please specify your tolerance requirement during quotation for a capability assessment and cost impact analysis.
Q: How does thickness precision affect damper dyno results?
Since damping force varies with the cube of shim thickness, even small tolerance improvements produce measurable dyno consistency gains. For example, reducing thickness tolerance from ±0.05mm to ±0.03mm on a 0.3mm shim reduces the damping force variation window by approximately 40%. This directly translates to more consistent damper dyno curves.
Q: Can you match shims to a specific thickness for matched-pair damper production?
Yes. We can sort and match shims within even tighter bands than our standard tolerance for matched-pair damper applications. This service adds a small per-piece cost but eliminates left-right damper mismatch, reducing warranty risk and improving end-customer satisfaction.
Q: What is your process capability (Cpk) for thickness?
We maintain Cpk ≥ 1.33 for thickness as a standard quality metric, with Cpk ≥ 1.67 achieved for established production programs. Process capability data is available for new part qualification and ongoing SPC reporting.
Q: Do you maintain thickness consistency across large production volumes?
Absolutely. With 500,000 pcs monthly capacity and IATF16949-governed process control, our thickness consistency is maintained from the first piece to the last across production batches. SPC charts track thickness trends in real-time, with automatic intervention if any drift toward control limits is detected.
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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