Cylinder head repair

Valve seat cutting, restoration and repair machining of cylinder heads, and crack restoration welding of engine parts.

This is an introduction to the repair of cylinder heads by Kōei Techno System, which conducts research and development aimed at enhancing the quality of parts, improving wear resistance, heat resistance, and corrosion resistance, similar to preventive medicine, with a focus on the repair, regeneration, extension of life, and maintenance of components. Founded in 1946, we have a history of approximately 70 years and have introduced welding and thermal spraying technologies early on in the internal combustion engine industry, primarily focusing on the repair (restoration) of engine parts. **Cylinder Head Repair** We perform crack welding, corrosion welding, valve guide replacement, seat ring replacement, surface grinding, and hydraulic testing. - Valve seat cutting machine ⇒ Photo 1 - Valve seat cutting finish ⇒ Photo 2 - Restoration and repair processing of cylinder heads ⇒ Photo 3, Photo 4 Repair details: chamber replacement, valve guide replacement, crack thermal spraying, hydraulic testing, surface grinding, and seat ring manufacturing. - Engine parts crack restoration welding ⇒ Photo 5, Photo 6 *For more details, please download the catalog or contact us.*

Engine partsProcessing ContractCalibration and repair