This is a cup finished with a mirror-like surface on the inside through press forming. Since it can be completed with press processing, it allows for mass production and contributes to cost reduction.
This product is a cup with a press-finished inner mirror surface. It is used in units that supply fuel to automotive engines. 【Features】 - As a critical safety component where fuel leakage is absolutely unacceptable, it meets the quality standards required by our customers. - It has been adopted by most Japanese car manufacturers, with a total sales record of 3 million units per month and over 700 million units cumulatively across the entire series. - It is estimated that this product is used in more than 30% of the vehicles produced by Japanese automotive manufacturers worldwide (according to our calculations). - By replacing machining processes, we have achieved a 50% cost reduction. For more details, please refer to the catalog or contact us.
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basic information
■Dimension example: Inner diameter Φ13.5mm x h14.5mm. ■Surface roughness actual value: Ry0.5 (customer required precision is Ry3.2) ■Applicable materials: SPCC/SUS304L (other materials are also available upon consultation) ■Main product tolerances: Inner diameter tolerance range 0.03, roundness 0.035, coaxiality 0.1 ■Processing details: Press processing (inner surface mirror drawing) - cleaning - inspection
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Applications/Examples of results
This product was created by replacing machining products with press-processed products. It has over 20 years of supply history as a safety component with strict quality requirements. We respond to parts that require stringent internal surface roughness and mass-produced items that cannot be supplied in time through excellent press processing technology.
Detailed information
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Replacement method products Traditionally, they were products made through machining and welding processes, as shown in the photo.
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Inner surface roughness The inner surface roughness is maintained at approximately Ry0.5 based on actual values.
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Fuel supply unit It is used for the fuel supply unit to the fuel injection device (fuel injector).
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Engine mounted state It's small and hard to understand, but it is in a state mounted on the engine.
catalog（2）
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Company information
Koukougyou Co., Ltd. has established a consistent production system from mold making to press processing and sub-assembly since its founding in 1964. As a press manufacturer equipped with development capabilities, we have grown by closely addressing our customers' challenges. We sincerely confront individual customer issues such as high purchase costs, labor-intensive processes, unstable quality, and inability to accommodate mass production. By proposing method replacements through repeated discussions, we solve problems and build a Win-Win relationship with our customers. We tackle customer challenges with outstanding technology and ideas, exceeding the limits of conventional press processing to produce stainless steel thick plate products, precision deep drawing, precision irregular shape drawing, and composite molding with other materials. If you have dissatisfaction or issues with the procurement of metal parts or the internal work using those parts, please feel free to reach out to us.
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