Manufacturing know-how backed by a long history! We address customer problems and needs.
We would like to introduce the technology of Nippon Kongō Tōseki Seisakusho Co., Ltd. Grinding wheels can be broadly divided into three categories: grinding wheels for cutting, grinding wheels for polishing, and grinding wheels for slicing. Depending on the customer's intended use, we select and adjust the manufacturing method, type of abrasive grains, shape of the grinding wheel, and hardness (bonding strength) of the grinding wheel. We will introduce the technology behind the basic manufacturing methods. 【Types of Manufacturing Methods】 ○ Vitrified Bond Method ○ Resin Bond Method ○ PVA Method For more details, please contact us or download the catalog.
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basic information
【Manufacturing Technology】 [Vitried Method] ○ Add inorganic materials to the binder, mix with an appropriate amount of additives, mold, and fire at a high temperature of 1,300°C for production. ○ Features many pores, making it less likely to experience grinding burn, suitable for use from rough grinding to precision grinding. ○ Variants with larger pores expand applications to alleviate clogging during grinding. [Resinoid Method] ○ Add phenolic synthetic resin and other materials to the binder, and fire at around 200°C. ○ Capable of producing ultra-fine powders and difficult-to-combine mixed abrasive grains without deformation. ○ Produces grinding wheels with excellent grinding properties (sharpness and finish). ○ Rich in elasticity and toughness, with high safety, suitable for high-speed use, and has a wide range of applications. [PVA Method] ○ Uses PVA (polyvinyl alcohol) as the binder. ○ Forms elastic, porous grinding wheels. ○ Meets the needs of customers requiring precise finishing processes. ● For more details, please contact us or download the catalog.
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Applications/Examples of results
【Applications】 [Vitried Method] ○ Grinding and polishing of general steel materials, hardened steel materials, superalloys, cast iron, non-ferrous metals, and non-metals. ○ Truing and dressing of diamond tools. [Resinoid Method] ○ Magnetic heads for audio, video, and card readers; ferrite cores. ○ End face polishing of connectors for optical fibers. ○ Dressing of ultra-fine diamond tools. [PVA Method] ○ Surface finishing and polishing of non-ferrous metal materials (aluminum, copper, chrome, etc.). ○ Surface finishing and polishing of non-metals (glass, resin, etc.). ● For more details, please contact us or download the catalog.
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Company information
Nihon Kongō Tōseki Seisakusho Co., Ltd. has been manufacturing various grinding wheels for over 90 years, and we take pride in our unique technology that allows our products to stand unmatched by others. With a wealth of applications and manufacturing know-how backed by a long history, we can assist in solving various problems our customers face and in the research and development of new products. Additionally, we are open to consultations for the design and manufacturing of custom products tailored to our customers' specific needs and issues. Even for made-to-order items, we can respond with short lead times.
