マルナカ Company Profile

"Impressive Work with Technical Skills and Creativity" We are a group of experts in metal pressing parts.

Marunaka Co., Ltd. has established a comprehensive production system centered on metal pressing as its core technology, covering 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 influence the precision and labor involved in pressing. The company has a dedicated section for mold design and manufacturing, working on improvements in pressing processes through innovative mold designs. Moreover, by conducting the entire process related to metal press parts, including molds, in-house, Marunaka enhances its ability to respond to QCD (Quality, Cost, Delivery), striving to supply higher quality parts at appropriate prices and with speed. Additionally, leveraging the accumulated know-how from metal pressing, the company is also 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.