
Over 50 years of
Trusted PRECISION
YAMAMOTO SEIKI Co., Ltd.
Based on our philosophy, “Quality has supreme priority” proudly delivering confidence and satisfaction to our customers in aerospace industries since 1968.
Services

Main Scope Of Business
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Manufacture of aircraft engine parts & space rocket parts.
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Manufacture of aircraft engine maintenance equipment.
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Manufacture of aircraft body parts.
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Manufacture of aircraft ground support equipment.
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Machining of industrial parts.
Technical details
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Milling process (vertical and horizontal machining center, milling machine, etc.)
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Lathe processing (horizontal general-purpose lathe, NC lathe, vertical turning)
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Polishing (flat surface, inner diameter, outer diameter)
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Wire cut electric discharge machining
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Discharge drill
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Die-sinking electric discharge machining


Manufacture of equipment for maintenance of various passenger aircraft
Ground support equipment for engine maintenance
Ground support equipment for aircraft maintenance
Calibration of maintenance equipment of various shapes and measuring instruments
Traceable calibration to national standards.
* Scheduled to acquire ISO17025 and ILAC-MRA accreditation (March 2022)
Inspection and load test of maintenance equipment
We carry out periodic maintenance inspections including road tests of aircraft and aircraft engine maintenance equipment.

November 21, 2024
Received Local Business Excellence Award
"Furusato Kigyo Award" from
Japan Foundation For Regional Vitalization

October 9, 2024
Received "SUPPLIER OF THE YEAR" Award from RH Aero Systems.

May, 2023
Became the naming right sponser for the training facility for BLAUBLIZ AKITA
October 10, 2023
Received the Premier Customer Service Award from Rhinestahl corporation.

September 26, 2023
ISO/IEC 17025 is accredited for dimensional testing.

September 1, 2023
Received the Supplier Excellence Award from IHI corporation.

February 1, 2023
Opening of the new welding and assembly facility at Katagami Factory.

October 25, 2022
Received the Supplier Of The Year 2022
Award from Rhinestahl Corporation.

August 30, 2022
We are commended for the successful small and medium-sized company in Akita of the year 2022.

December 22, 2021
We are selected for 300 small and medium-sized companies of the year 2021.

October 27, 2021
Received the Supplier Of The Year 2021 Award from Rhinestahl Corporation.
