Ohno Seiko Co., Ltd. is a premier Japanese manufacturer specializing in high-precision machining and component production. Headquartered in Nishio, Japan, with additional facilities in Okazaki and Vietnam, the company employs over 110 professionals and maintains ISO 9001 and ISO 14001 certifications. They serve as a critical OEM partner for the automotive, semiconductor, and hydraulic industries, providing specialized components such as SUS303 nozzles, semiconductor jigs, and chuck tables.
The company is distinguished by its advanced technical capabilities, including 5-axis CNC machining, NC lathe machining, and wire EDM cutting. They excel in high-level processing for difficult-to-machine parts, offering lapping operations at the micron level, cylindrical mirror grinding, and ultra-mirror finishing. Their facility is equipped with high-end machinery such as the Makino V33 for microfabrication, Okuma machining centers, and Mitutoyo CMMs housed in a temperature-controlled inspection center to ensure strict quality control.
Ohno Seiko handles a wide range of materials, including SUS303 stainless steel, A2017 and A6061 aluminum, titanium, nickel alloys, and plastic protocol machining. They offer specialized surface treatments such as DLC treatment, WPC treatment, and hard anodized aluminum (Kashima coat). With a focus on prototype manufacturing and small-scale production starting from a single piece, they provide tolerances as tight as ±0.01mm and flatness tolerances of 0.05 for index parts. Their streamlined production management system supports quick delivery and express services for complex industrial machinery components.
OEM manufacturerOffers OEM services for customized brand manufacturing.
Small batch productionSupports small or flexible order quantities.
Product customizationOffers full customization for design and features.
Multinational enterpriseOperates in multiple countries or regions like 🇯🇵 Japan, 🇻🇳 Vietnam.
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Customers
OHNO SEIKO
28,188 shipments
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Certifications
ISO 9001
2
International Organization for Standardization 9001
ISO 14001
2
International Organization for Standardization 14001
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Key export market
🇯🇵 Japan🇯🇵 Japan
🇺🇸 United States🇺🇸 United States
🇻🇳 Vietnam🇻🇳 Vietnam
🇲🇾 Malaysia🇲🇾 Malaysia
🇨🇿 Czechia🇨🇿 Czechia
🇭🇰 Hong Kong🇭🇰 Hong Kong
🇵🇭 Philippines🇵🇭 Philippines
🇩🇪 Germany🇩🇪 Germany
🇹🇭 Thailand🇹🇭 Thailand
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