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Ever since our founding, the Muroran Plant has played a valuable part in the development of Japan′s heavy and chemical industries as a materials production center. Making use of large production facilities, such as a 14,000-ton hydraulic press, and cutting-edge equipment, including a 150-ton electro-slag???remelting furnace, the plant supplies the world with high-quality products that include very large to small cast and forged steel products, steel plates and pipes, reactors for oil refineries and petrochemical plants, as well as wind turbines and other products for the energy field.

Main facilities

• 120-ton electric furnace
• 150-ton electro-slag remelting furnace
• 5-ton vacuum induction melting furnace
• 3,000- to 14,000-ton presses
• 30,000-horsepower 4-high reversible plate mill
• 12,000-ton pipeforming press
• low-frequency quenching equipment
• metal machining tools
• 70- to 730-ton wharf cranes

JSW Muroran plantPDF(PDF：.60MB)

Dedicated to technological innovations especially in the fields of plastics and mechatronics, the Hiroshima Plant with its leading-edge manufacturing and assembly lines produces world-renowned large-size pelletizers and extruders, film and sheet production systems, and the latest plastics injection molding machines. The plant also has long experience in manufacturing and developing artillery and other defense equipment.

Main facilities

• 8-ton high-frequency furnace
• 6-ton electric furnace
• precision casting equipment
• plasma nitriding furnace and other heat treatment equipment
• industrial chrome plating equipment
• combination laser and turret punch press
• various welding equipment
• 2,000-ton hydraulic press
• machining center and other metalworking machines
• 60-ton wharf crane

JSW Hiroshima plantPDF(PDF：.66MB)

Our excimer laser annealing (ELA) system for IT products, enabling mass production of high-quality LCD panels and organic EL panels, has the top share of its market. We are also developing and commercializing systems for the next generation of LCD products. Following in the steps of our blow molding machines, spinning extruders, and other main products, the ELA systems have earned high acclaim both in Japan and overseas. Our newest endeavor is the manufacturing of equipment for semiconductor production.

Main facilities

• Machining center
• NC lathe
• special equipment for screw machining and other metal machining tools

JSW Yokohama plantPDF(PDF：.06MB)

The Muroran Research Laboratory was established in 1907 with the founding of JSW.
From fundamental to applied studies, the laboratory has broadened its research fields on materials for key industries, such as steelmaking, shipbuilding, oil refining, hydro/thermal/nuclear power generation, and bridge construction. It has developed manufacturing processes and material technologies for large forgings and castings and achieved numerous results in new product and technology developments.
In recent years, strong research efforts are being devoted to studies on manufacturing processes for functional materials, including high-purity steel and nonferrous materials, as well as to developing heat-resistant, corrosion-resistant, and new functional materials.

The Hiroshima Research Laboratory was established in 1975.
R&D at this facility focuses on highly functional composite materials in plastics and polymer alloy fields, from raw materials to the molding process for making finished products, as well as on development of new materials for these processes.
Research also covers wear-resistant and corrosion-resistant elements for equipment such as extruders and injection molding machines. These technologies are then applied to development of light metal injection molding techniques, environmentally friendly plastics and other new materials. Research activities are also carried out in a wide range of other areas including micro- and nano-scale transcription molding process and nanotechnologies.

Our R&D work in the flat panel display and semiconductor-related fields is concentrated here in the Yokohama Research Laboratory, where efforts are also going into development of innovative technologies and new products as successors to our excimer laser annealing system, a core JSW product.Another area of research here aims to develop new manufacturing processes for blow molding machines and other industrial machinery as well as new analysis and testing technologies. Rather than simply focusing on product development, we strive to meet customer needs by paying attention to process technology development.