Yokoki Co., Ltd.

Japan

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Yokoki Co., Ltd. (ヨコキ株式会社) was founded in July 1921 and incorporated in June 1944. Headquartered in Yokohama, Kanagawa, the company is an engineering and manufacturing supplier of custom automotive body checking fixtures, automated welding and assembly lines, and aircraft assembly tooling.

Yokoki operates multiple facilities in Kanagawa Prefecture, providing end-to-end design and fabrication capabilities ranging from 3D modeling, robot simulation, and large-scale 5-axis CNC machining to high-precision CMM verification. The company serves major OEMs including Nissan Motor, Suzuki, Honda, and UD Trucks.

Certifications: ISO 9001 (Headquarters & Nippa Plant), ISO 14001 (Headquarters)
Key facilities: Hodogaya Headquarters Plant, Nippa Plant, Sagamihara Plant, and Shonan Plant

Offer

Yokoki delivers comprehensive workholding, inspection, and assembly systems:

Automotive Checking Fixtures: Full vehicle body opening fixtures, master cubing fixtures, side body checking fixtures, engine compartment fixtures, front/rear floor check fixtures, closure panel checking units, and gap/flushness gauges.
Aircraft Assembly Tooling: Turnkey design and construction of large-scale aircraft structure assembly jigs and positioning tooling.
Automated Assembly & Welding Systems: Complete automated welding and assembly cells featuring multi-axis industrial robots, spot welding guns, hem forming tools, and customized NC machinery.
Inspection & Metrology Systems: Automated inspection cells integrating collaborative robots with optical 3D scanners, backed by stationary bridge CMMs and portable measuring arms.
Machining & Tooling: Gantry-type 5-face machining centers up to 5,000 mm span for heavy tooling bases, lightweight carbon fiber structures, and resin model tooling.

Facility / Machine	Configuration / Capacity	Make / Details
Gantry 5-Face Machining Centers	5,000 × 3,000 × 800 mm, 2,500 × 4,000 mm, 2,300 × 4,000 mm	Shin Nippon Koki, Okuma
Robotics & Automation	6-Axis Articulated Robots, Robot simulation	FANUC (ROBOGUIDE), DELMIA
Inspection & Metrology Equipment	Bridge CMMs (11 units), Articulated Arm CMMs (6 units), 3D Digitizer	Tokyo Boeki (4,000 × 6,000 mm surface plate), GOM ATOS III Triple Scan
CAD/CAM Infrastructure	iCAD-SX (23 seats), NX (16 seats), CATIA V5 (4 seats)	Fujitsu, Siemens, Dassault Systèmes

Yokoki Co., Ltd.

Offer

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