上越市 List of Products and Services

We manufacture resin molded products, starting with FRP (fiber reinforced plastic). We mainly handle interior and exterior parts for trucks, buses, construction machinery, agricultural machinery, and medical devices, and we carry out consistent production from the development of resin materials to molded products. Areas of expertise: Molding technology: We possess various molding technologies, including hand lay-up molding of FRP, L-RTM molding, hot press molding, rim molding, stamping molding, and glass wool molding. Design technology: We use CAE analysis to propose optimal materials and shapes, contributing to the acceleration of development. Material development: We are also engaged in the development of new materials and technologies, such as flame-retardant FRP and low VOC (volatile organic compound) resins. Products: FRP molded products: Interior and exterior parts for trucks, buses, construction machinery, agricultural machinery, industrial machinery, and railway vehicles. SMC molded products: Cover parts for medical devices. RIM molded products: Outer cover parts for trucks, buses, construction machinery, agricultural machinery, and industrial machinery. Glass wool molded products: Molded products for thermal insulation and sound absorption materials. Others: Vacuum molding, extrusion molding, blow molding, injection molding products, etc.

Nagumo Manufacturing Co., Ltd. is a company specializing in precision machining and cutting, metal product manufacturing and processing, and plastic and mold processing. Founded in July 1947, it has a capital of 950 million yen and employs 108 people. The company handles precision molds for semiconductor manufacturing and automotive parts manufacturing, establishing a consistent production system from design to quality assurance. Specialized Technical Fields: Mold Design and Manufacturing: We excel in designing press molds used for punching, bending, and cutting. Precision Machining: We cater to high-precision machining processes such as cutting (±0.003mm and above), grinding (±0.001mm and above), and electrical discharge machining (±0.002mm and above). Materials Handled: We work with a wide range of materials, including cold work die steel (such as SKD11), stainless steel (such as SUS304 and 316), high-speed steel (such as HAP), cemented carbide, and various types of aluminum.