マルナカ Company Profile

"Impressive Work through Technical Skill and Creativity" We are a group of experts in metal press components.

Marunaka Co., Ltd. has established a consistent production system centered on metal pressing as its core technology, encompassing everything from mold design and manufacturing to parts processing (pressing, welding, cutting, polishing, and cathodic electrodeposition coating) and assembly. The company manufactures automotive parts, office equipment parts, and household parts, among others. In particular, it focuses on enhancing the sophistication of molds, which significantly affect the precision and labor involved in pressing. Marunaka has a dedicated section for mold design and manufacturing, working on improvements in pressing processes through innovative mold designs. By conducting all processes related to metal press parts, including molds, in-house, the company enhances its ability to respond to QCD (Quality, Cost, Delivery) requirements, striving to supply higher quality parts at appropriate prices and with speed. Additionally, leveraging the accumulated know-how from metal pressing, Marunaka is advancing research and development of original products, such as the "W-V-LOCK" bolts and nuts that do not loosen under strong vibrations. As a technical group specializing in metal press parts, Marunaka Co., Ltd. is committed to skill enhancement, upgrading equipment, and strengthening its integrated production system to meet customer demands at a high level.