中井工業 Company Profile

We can produce 'white heart ductile cast iron,' which has excellent weldability and plating adhesion, uniquely in Japan!

Nakai Kogyo Co., Ltd. primarily manufactures and sells "cast products that can be welded, white-heart ductile cast iron." We have established transactions with various industries such as automotive, motorcycles, temporary scaffolding, civil engineering, and general industrial machinery, based on the evaluation of the weldability, toughness, and good plating properties of our products. Furthermore, we at Nakai Kogyo have set up a system to respond to customer needs, from product development to design, in order to "shape our customers' thoughts." We can also consider small lot products and prototypes. Additionally, you can verify the excellent weldability and plating properties of white-heart ductile cast iron through samples, and visually confirm product images using our 3D printer. In addition to white-heart ductile cast iron, we also engage in the sales of ductile iron, gray cast iron, stainless cast steel, black-heart ductile cast iron, and cast steel (including lost wax method with composite lost) manufactured by our partner manufacturers. We provide satisfactory products with a variety of casting materials. Leveraging over 80 years of accumulated casting technology and development capabilities, we support the resolution of our customers' challenges. Please feel free to contact us, even at the consultation level!