
Ultra-Thin Precision with Tight Thickness Control
The Stamped Gasket is used to fill gaps between components and prevent loosening under vibration or load. Incorrect thickness can affect bolt locking performance and overall assembly stability, making dimensional control critical for this part.
Ultra-thin gaskets are produced in the range of 0.1 mm to 0.5 mm, with a thickness tolerance controlled within ±0.02 mm. This level of precision is achieved through stable tooling conditions and controlled die clearance. Once the mold gap is properly set, thickness consistency is maintained across the entire production batch.
Production experience includes supplying precision gaskets to instrument manufacturers, where parts were inspected individually using micrometers. Random sampling of 100 pieces per batch showed full compliance with dimensional requirements.
Standard gasket thickness ranges from 0.5 mm to 1.5 mm, while the full customizable range extends from 0.05 mm to 2.0 mm depending on application requirements. Available product types include flat washers, wave washers, locking washers, and custom-shaped or combined gasket structures.
Inner hole tolerance is controlled within +0.03 mm / 0, ensuring smooth bolt insertion without misalignment. Outer diameter coaxiality is maintained within 0.05 mm, allowing stable alignment during assembly.
Material Hardness Control and Surface Treatment Options
Flat gaskets are typically controlled at a hardness level of HV180–220, while spring washers require higher hardness in the range of HV300–380. Heat treatment processes are adjusted to achieve the required mechanical properties depending on application needs.
Material options include SPCC for general applications, SUS304 stainless steel for corrosion resistance, copper for conductivity, and 65Mn spring steel for high-elasticity requirements. Additional materials such as PTFE composites and aluminum are also available for specialized applications.
Surface treatments include zinc plating, passivation, and natural stainless steel finishing. Corrosion resistance and functional surface requirements can be adjusted based on the operating environment.
Production is supported on multiple press machines ranging from 25 tons to 160 tons, ensuring appropriate forming conditions for different thicknesses and geometries. Proper press selection is essential to avoid tooling damage and ensure forming stability across different material specifications.
Standard sample production time is 3–5 days, and small batch orders are supported. The standard warranty period is three months.

Technical Specifications
|
Parameter |
Standard Specification |
Custom Range |
|
Material |
SPCC, SUS304, Copper, 65Mn |
PTFE composite, aluminum |
|
Ultra-Thin Thickness |
0.1 / 0.2 / 0.3 / 0.4 / 0.5 mm |
0.05–2.0 mm |
|
Thickness Tolerance |
±0.02 mm |
Tighter tolerances available |
|
Gasket Types |
Flat washer, wave washer, locking washer |
Custom-shaped / combined gaskets |
|
Hardness |
Flat HV180–220 / Spring HV300–380 |
Adjustable via heat treatment |
|
Surface Treatment |
Zinc plating, passivation, natural finish |
Anti-corrosion / conductive finishes |
|
Inner Hole Tolerance |
+0.03 mm / 0 |
Customized according to bolt size |
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