共栄電工 Product Lineup

Kyoei Electric Co., Ltd. was founded in the Suwa region of Nagano Prefecture, Japan, which is the birthplace of the precision machinery industry. Since its establishment, we have consistently earned high trust from many customers as professionals in precision machining and assembly. Currently, we are enhancing our ability to respond to "Q, C, D" by utilizing the know-how we have cultivated over many years and by in-house production of our manufacturing equipment. 【Business Activities】 1. Ultra-precision special mirror polishing processing ◆ Mirror finishing processing ◆ Inner surface polishing of ultra-fine tubes ◆ Mirror polishing of difficult-to-cut materials Examples: Semiconductors, medical devices, etc. The materials of the parts requested for mirror polishing include difficult-to-cut materials such as stainless steel, titanium, and high melting point metals like tungsten, tantalum, molybdenum, niobium, and fine ceramics. 2. Production of automatic assembly equipment ◆ Design and production of labor-saving devices ◆ Design and production of jigs ◆ Metal pressing, resin molding Examples: Precision high-speed automatic assembly lines using cam mechanisms, high-speed automatic assembly lines with pulse air dust removal functions, product transport systems between equipment using multi-axis robots, etc. *For more details, please download our catalog or feel free to contact us.

• Wafer processing/polishing equipment
• Processing Contract
• Hand polishing and filing

For complex-shaped components, please leave it to our unique ultra-precision polishing processing service. Our ultra-precision special mirror polishing technology is an original polishing method developed through continuous challenges to achieve mirror polishing on shapes and materials that were previously deemed "difficult or impossible" using conventional polishing techniques such as grinding, electrolysis, chemical processes, lapping, honing, buffing, blasting, and barrel finishing. It is used for mirror polishing of precision micro-machined parts incorporated in semiconductor manufacturing equipment, medical and analytical instruments, aerospace and space-related applications, nuclear and accelerator-related equipment, ultra-high vacuum devices, precision electronic devices, and pharmaceutical and food manufacturing equipment. ◆ The materials of the parts requested for mirror polishing are difficult-to-cut materials: stainless steel, titanium, and high-melting-point metals such as tungsten, tantalum, molybdenum, niobium, and fine ceramics. ◆ Examples include: fine tube polishing, Ni-Ti pipe inner surface polishing, nozzle polishing for blood tests, comparative evaluation of flexible pipe polishing, inner surface polishing of cylinders, and inner surface polishing of Φ100 glass-like carbon crucibles. *For more details, please download our catalog or feel free to contact us.

• Wafer processing/polishing equipment
• Processing Contract
• Hand polishing and filing