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  6. Cutting processing of gray cast iron and ductile cast iron for automotive parts.

Cutting processing of gray cast iron and ductile cast iron for automotive parts.

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last updated:Aug 04, 2026

共和精機
共和精機
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For those struggling with increased labor and costs due to total machining from steel materials! We offer a solution with processing proposals that leave black skin.

In the automotive parts industry, high precision and cost efficiency are required for components such as engine blocks. In particular, total machining from solid materials or round bars can lead to increased processing time and material costs, resulting in unprofitable situations. Additionally, while there is a desire to reduce labor costs by leaving the black skin (unprocessed surface), challenges arise due to the difficulty in designing processing costs and dimensional tolerances, and the lack of proposals from existing processing companies. Although there is a desire to control costs through casting (FC/FCD), it can be difficult to find cooperative factories that can consult on design changes. Kyowa Seiki's "Casting (FC/FCD) Precision Machining and Cost Reduction Solution" addresses these challenges by providing processing proposals that utilize the black skin. 【Usage Scenarios】 - Cost reduction in mass production of engine blocks - Suppression of increased labor and material costs from total machining of steel materials - Realization of labor cost reduction through black skin remaining processing - Cost reduction through casting (FC/FCD) 【Benefits of Implementation】 - Improved profitability through reduced processing time and material costs - Response to design changes and special processing requests - Reduction of component costs through casting - Increased production efficiency in mass production

    Processing Contract
スクリーンショット

Cutting processing of gray cast iron and ductile cast iron for automotive parts.

スクリーンショット 2026-07-24 180606.png
スクリーンショット 2026-07-24 180606.png
  • Special site - Product/service details - https://pr.mono.ipros.com/kyowa-seiki/product/

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【Features】 - Compatible with machining of gray cast iron and ductile cast iron - Cost reduction proposals through processing that utilizes the black skin - Reduction in man-hours and costs compared to total machining from steel materials - Realization of cost control through casting (FC・FCD) - Cooperative system that allows for consultation from design changes 【Our Strengths】 Kyowa Seiki Co., Ltd. is based in Inashiki City, Ibaraki Prefecture, and specializes in the machining and manufacturing of various parts, including diesel engine parts and tractor parts. We can also produce items such as lighting panels and vases based on the CAD data you provide. Regardless of technology, delivery time, or quantity, please feel free to contact us. Our main equipment includes 5-axis machining centers, multi-tasking machines, numerous machining centers, CNC lathes, and CNC 3D measuring machines, enabling us to meet a wide range of machining needs.

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【Supported Industries and Specifications】 - Supported Industries: Agricultural machinery (tractors), construction machinery, industrial diesel engines, hydraulic and pneumatic equipment, architectural objects, lighting panels - Supported Materials: Gray cast iron (FC200, FC250, etc.), ductile cast iron (FCD450, FCD600, etc.), aluminum, and other metals - Main Works: Gear cases, brake cams, bearing holders, differential cases (front and rear wheels), brake stoppers, crank bearings, etc.

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Case studies of processing differential cases, gear cases, brake cams, crankshaft bearings, and bearing holders.

Case studies of processing differential cases, gear cases, brake cams, crankshaft bearings, and bearing holders.

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Republic Precision Machinery Co., Ltd. Business Introduction

Republic Precision Machinery Co., Ltd. Business Introduction

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共和精機

共和精機

Machine elements and parts

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Kongō Seiki Co., Ltd. is engaged in the processing and manufacturing of diesel engine parts, tractor parts, and other components at the New Tone Industrial Park in Inashiki City, Ibaraki Prefecture. We can also produce items such as lighting panels and vases based on the CAD data you provide. Please feel free to contact us regarding technology, delivery times, quantities, or anything else.

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