I want to improve the precision of finishing processes... solving issues related to cutting and grinding operations.
High-precision double-sided grinding at the micrometer level! Simultaneous processing of surfaces is also possible, contributing to improved accuracy and cost reduction. Please consult us for cutting and grinding processing.
At Sunstar Engineering, we also solve issues related to the precision, cost, and lead time of finishing processes, which are challenges in cutting and grinding operations. We possess a wide range of equipment, including NC lathes, machining centers, and laser processing machines, and we have various technologies such as high-precision double-sided grinding at the μm level, pressing, and heat treatment, allowing us to provide consistent support from design and production to testing and analysis. 【Business Activities】 ■ Thick plate punching press ■ Heat treatment ■ Cutting ■ Grinding ■ Gear cutting ■ Coating 【Examples of Problem Solving】 By performing processes that are usually done separately on both sides simultaneously, we achieved high precision. This also led to cost reduction through a decrease in work hours.
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basic information
【Processing Technology】 ■ Thick Plate Punching Press We have mechanical presses ranging from 60 to 2000 tons and a 600-ton hydraulic press, allowing us to meet various needs through combinations. (Plate thickness: up to 13mm) ■ Laser Processing Capable of handling a wide variety of small lot production. Able to perform complex and precise processing that is difficult with pressing or cutting. We are also challenging the establishment of technology for processing thick plates over 6mm. ■ Surface Grinding High-precision flat finishing processing. ex. Precision in the order of micrometers. ■ Machining High-precision machining using NC lathes and machining centers. Capable of processing stainless steel and aluminum as well.
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Applications/Examples of results
[Examples of Processing Achievements] - Disc rotors and sprockets for motorcycles - Flange brakes - Muffler flanges - Disc brakes - Thick plate ring gears for outboard motors - Engine rear plates
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Company information
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.