We are creating more reliable products through our unique testing machines and evaluation technologies.
Sunstar is actively advancing its unique technology development to respond to the increasingly sophisticated and diverse domestic and international users, and is committed to the development of new products and technologies. Through unique testing and evaluation techniques from planning, research, and development, we maintain high quality and high performance, providing safety and peace of mind to each user. Starting with press processing technology, supported by advanced mold manufacturing technology, as well as cutting, polishing, and hardening techniques, we consistently produce products that meet various needs through our unique processing technologies and excellent production facilities. 【Features】 ■ Utilization of cutting-edge research facilities to develop high-functionality and high-quality products ■ Unique processing technologies and excellent production facilities ■ Consistent production ■ Noise reduction, durability, and weight reduction of sprockets ■ Our proprietary testing machines and evaluation techniques *For more details, please refer to the PDF materials or feel free to contact us.
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【Motorcycle Parts Related Products】 Our excellent production technology has led to the creation of motorcycle sprockets and disc brakes, which are adopted not only by all motorcycle manufacturers in Japan but also by major motorcycle manufacturers worldwide, including North America, Europe, and Southeast Asia. *For more details, please refer to the PDF document or feel free to contact us.*
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The origin of Sunstar Giken dates back to 1932 when it began selling bicycle parts. Subsequently, the company successfully manufactured and sold its own bicycle rubber adhesive (glue for tires and tubes). Utilizing the production equipment for the metal tubes that contained the rubber adhesive, they commercialized what is now known as Sunstar toothpaste, which became the foundation of Sunstar Co., Ltd. Meanwhile, the bicycle parts manufacturing and sales business later shifted to metal parts for motorcycles, establishing the foundation of the current Sunstar Giken Co., Ltd. Since then, the company has responded to the changing needs of the times by supplying OEM parts such as motorcycle sprockets, brake discs, and outboard motor gears to domestic and international two-wheeled manufacturers, holding a top-class market share. They excel in integrated production from pressing, heat treatment, cutting, gear cutting, to polishing using coil materials with thicknesses ranging from 4mm to 13mm, and can handle a wide range of materials including carbon steel, stainless steel, and aluminum in collaboration with multiple material manufacturers. The equipment includes a diverse range of facilities from large presses of 150 tons to 2000 tons, machining centers, laser processing machines, hobbers, NC lathes, polishing machines, and high-frequency hardening, enabling processing tailored to customer needs.
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