A wide range of products from ultra-low temperatures to high temperatures! New materials that cover thermal expansion characteristics.
In various advanced fields ranging from optical devices and electrical components to ultra-precision machine tools and semiconductor-related device parts, overcoming thermal displacement of the materials used, which is a factor in precision errors, has become a bottleneck for achieving high precision. At Nippon Casting, we focused on the thermal expansion characteristics of inverter-type alloys and successfully developed the 'LEX series' by balancing the conflicting properties of low thermal expansion with castability and machinability through unique chemical compositions and advanced heat treatment. In response to diversified precision requirements, we offer a wide range of materials that cover a broad spectrum of thermal expansion characteristics. This has earned us high acclaim not only in the ultra-precision equipment sector but also in various fields, including CFRP (carbon fiber reinforced plastic) molds primarily for aircraft, vacuum pump parts, and laser equipment components. 【Main Products】 ■ Flat plates for ultra-precision grinding machines ■ CFRP molds for semiconductor manufacturing equipment ■ Frames for laser measuring instruments ■ XY stages *For more details, please refer to our catalog or feel free to contact us.
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basic information
【Lineup】 ■LEX-40K (for high temperatures) - Shows extremely stable thermal expansion characteristics over a wide temperature range up to 400℃. ■LEX-20K (for medium temperatures) - Exhibits excellent low thermal expansion in the medium temperature range, outstanding hot castability, and possesses very good internal quality, surface treatment properties, and mechanical properties. ■LEX-ZERO - Thermal expansion coefficient ZERO 0±0.19-6 /℃ at 20℃ to 25℃. ■LEX-ZERO NEXT - Maintains thermal expansion coefficient ZERO even down to -30℃. ■LEX-STAR (for ultra-low temperatures) - Maintains thermal expansion coefficient below 1 (ppm/K) down to -78℃. - Contains less than 1% cobalt (Co) and complies with the Specific Chemical Substances Hazard Prevention Regulations. *For more details, please refer to the catalog or feel free to contact us.
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Company information
Our company was established in 1920 by Soichiro Asano, the founder of the Keihin Industrial Zone. With 95 years of rich experience and numerous excellent skills and technologies, our products are supplied across a wide range of fields and have earned high evaluations and trust from users. The three factories that manufacture cast steel products, special cast steel products, and cast iron products are equipped with top-level domestic facilities, including vacuum degassing equipment, vacuum casting facilities, and the largest automatic molding line in Japan. At Japan Casting, we have established a research and development system centered around our technology research institute to strive for the development of new products and new technologies for tomorrow.