The Material Division supports the Japanese manufacturing industry by creating core components based on a combination of excellent materials and technologies in all kinds of product areas, namely, automobiles, machine tools, precision machinery, construction machinery, and industrial machinery. These businesses can be called the “lifeline of manufacturing” in Japan.
As a leading manufacturer in the advanced components industry, which underpins cast iron and steel, precision casting, and steel processing, Kawakin Holdings Group creates innovative materials for products employing leading- edge technologies. These materials meet high strength (including durability, pressure resistance, heat resistance, and abrasion resistance), lightness and thinness, and complex shaping requirements for core components.
Our original casting technologies meet any shape and quality requirements, including castings of carbon steel, alloy steel, gray iron and ductile iron as well as austenitic iron Ni-Resist. Based on rigorous quality management, such technology have realized high-quality castings with the properties of superior weldability, high tensile strength, and impact resistance, and have won high acclaim from the industrial world. Our casting technologies are widely used in variety of ways, including construction parts that enable the creation of original architectural spaces, industrial machinery parts that contribute to the development and manufacture of casings, rotors for large-scale compressors and large hydraulic parts such as plastic injection molders, propeller peripheral components and engine parts of tugboats as well as parts of turbochargers that reuse high-temperature gases and parts of dry pumps.
Precision castings made using the lost-wax process have high dimensional accuracy and are the optimum for mass-production of complex shaped products. This process enables the manufacture of hollow and complex shaped products that are difficult to create using plastic working, such as pressing, and machining, such as cutting and turning. Currently, about 16,000 types of products are turned out using this process, which makes the most of its characteristics, such as smooth and beautiful surfaces regardless of the material and the unification of composite parts.
Products made using this process cover a wide range of applications including electronic, aeronautical, hydraulic/pneumatic, automotive, communications, medical and general industrial machinery and equipment, as well as construction parts, and leisure and sporting goods. About 80 types of our standard materials are available, which mainly comprise carbon steel castings, low alloy steel castings, stainless steel castings, tool steel castings, aluminum alloy, and copper alloy. However, special-quality materials suited to the user’s specifications are also available. Our high-precision, highquality castings, which lead global standards, meet the diverse needs of any industry.
Many of our high-quality products crafted from our precision rolling technology are among the world’s leaders, having gained high acclaim and a reputation for reliability in the market.
Our roll-shaped steels are available up to 155 mm wide and 65 mm thick. Types include SS, SC, SCM, SUS, and SUJ, and we handle multiproduct, small-lot production. Extensive experience and advanced technology based on significant knowledge of machinery are vital for the design of roll bore dies that precisely finish complex crosssectional shapes. In addition, highly sophisticated know-how in terms of areas such as heat control is required to minimize the decarburization that is always found in the hot-rolled process.
The extremely high standards of our precision rolling processes can reduce or eliminate cold drawing processes, which can result in reducing extensive production costs for various mechanical parts.
They can also replace conventional forging and hot extrusion processes as well as upgrade quench-hardening quality by reducing decarburized layers, thereby enabling a reduction in total cost.
- Kawaguchi Metal Material Co., Ltd. Website