Exploring the unknown technologies of Hiroshima Seiki Co., Ltd., a group of professionals in manufacturing.
Hiroshima Seiki Co., Ltd. is a specialized manufacturer of gears based in Hatsukaichi City, Hiroshima Prefecture. Gears are essential for all types of machinery, but their manufacturing requires precision machining technology at the micron level. As a result, even major manufacturers representing Japan, such as those in machinery, electronics, automotive, and steel industries, often have no choice but to rely on the technical expertise of specialized manufacturers for gear production. Leveraging such unique technology, Hiroshima Seiki engages in transactions with a wide range of manufacturers and provides gears. 【Types of Gears (Examples)】 ○ Spur Gear → A gear with teeth that are parallel to the axis of rotation → The most common type of gear ○ Helical Gear → A gear with teeth that are angled relative to the axis ○ Bevel Gear → A shape resembling two helical gears combined ○ Worm Gear → A conical gear that transmits power between axes that intersect vertically or horizontally ○ Rack → A flat plate or rod with teeth cut into one side For more details, please contact us or download the catalog.
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basic information
【Manufacturing Process】 ○Blank Processing →The state of the gear before the teeth are cut is called a gear blank. →Materials supplied by the material manufacturer are machined on a lathe to create the original shape of the teeth. ○Tooth Cutting →Teeth are cut out using specialized machinery for gear processing. →Only manufacturers from Japan, Germany, and Switzerland produce gear manufacturing equipment. →A specialized cutting tool called a hob is used for gear processing. ○Heat Treatment →To give the gear strength and toughness to withstand power transmission, heat is applied to harden the surface. ○Shaft Hole Grinding →The shaft is machined. →Using the center of this shaft as the origin, precise processing of the teeth is performed, making the accuracy of this process significantly impact the precision of the gear. ○Gear Grinding →The tooth surfaces are precisely polished using a rotating grinding wheel. →This operation determines the final quality of the gear. ○Inspection →Using inspection equipment, it is checked whether the product is finished according to the design drawings. →Precision is measured in microns. ●For more details, please contact us or download the catalog.
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Company information
Hiroshima Seiki Co., Ltd.'s representative product is "gears." Starting with gear tooth groove processing in 1946, the company has dedicated itself to producing high-precision products for over half a century. Now, Hiroshima Seiki Co., Ltd. is expanding its business scope to include the manufacturing of reducers, transmissions, and even complex machinery, building on the inherited technology as a foundation. Our core competence lies in total management technology covering all processes from proposal to design development, production, and after-sales service. The driving force behind every challenge in any era is customer needs, and our vision for Hiroshima Seiki is to be a "manufacturing industry version of a convenience store" that responds promptly to these needs.