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  5. Processing Contract
  6. Up to 70% reduction in unit parts cost! Secrets to reducing parts costs and improving production efficiency revealed.

Up to 70% reduction in unit parts cost! Secrets to reducing parts costs and improving production efficiency revealed.

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last updated:Oct 30, 2025

三恵
三恵
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[Case study available] Significant reduction in component costs through overseas production and process improvements! Specific examples of shortened lead times and enhanced quality are now publicly available.

Our company has achieved cost reduction and lead time shortening through overseas local production, process improvement, and mass production of high-difficulty items with reduced cutting. This time, we would like to introduce examples of cost reduction and production efficiency improvement in automotive parts. 【Examples of Achievements】 ■ Power Window Motor Main Shaft Achieved high-difficulty molding locally through overseas production. Reduced unit cost by approximately 5% and inventory quantity by approximately 50%. ■ Rivets for Wiper Blades Consolidated two processes into one and simultaneously molded the resin stop. Reduced unit cost by approximately 30%. ■ Cold Forged Pins for Reclining Seats Significantly reduced processing costs with no cutting. Reduced unit cost by approximately 70%, and processing lead time from 20 days to 3 days. For more details, please check the "Download Catalog" link below.

    Processing Contract
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Up to 70% reduction in unit parts cost! Secrets to reducing parts costs and improving production efficiency revealed.

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  • Acquisition of IATF16949 certification - The reliable San Kei brand that responds to trust with smiles and technology.
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[Example Proposal] Rivets for Wiper Blades

[Example Proposal] Rivets for Wiper Blades

TECHNICAL
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[Proposal Example] Cold-formed Pins for Reclining Seats

[Proposal Example] Cold-formed Pins for Reclining Seats

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Sankei Co., Ltd. Cold Forged Products

Sankei Co., Ltd. Cold Forged Products

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Mitsuke Co., Ltd. Cold Forged Products General Catalog

Mitsuke Co., Ltd. Cold Forged Products General Catalog

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三恵

三恵

Manufacturing and processing contract

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At San Kei Co., Ltd., we currently offer a variety of multi-stage part formers that demonstrate exceptional power in parts manufacturing. In addition to high quality, we also respond to low costs, short delivery times, and the production and prototyping of a wide variety of products in small quantities. Furthermore, customer needs are undoubtedly becoming more sophisticated. Looking towards the future, San Kei is actively engaged in product development, utilizing our unique technological capabilities and equipment to respond to the times and customer needs, including products made from new materials, as well as various sizes and shapes. Additionally, we established a factory in the United States in 1995, followed by a factory in Indonesia in 2012, and a joint venture in China (trade), thereby building a system that can meet customer needs overseas.

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