From universal joints (UJ) to oil jets,HIKARI SEIKO CO., LTD. (HKR) manufactures precision automotive parts.

Production System

Production Equipment

Production system with advanced automation and efficiency that supports the creation of high-quality products

We will respond to the diverse needs of our customers with our production system that pursues manufacturing with high quality and cost-effectiveness, through the reduction of cycle time and saving space as well as introducing unmanned lines, etc. In addition, our entire company is involved in facility maintenance activities. By implementing maintenance and inspection on all equipment, based on a maintenance calendar, we realize manufacturing that is always stable.

Production line that achieves reduction of cycle time and saves space

Gear bush cutting line
Gear bush cutting line

Gear bush grinding line
Gear bush grinding line

Spider turning line
Spider cutting line

Production lines that have been fully automated by our advanced production technology

Valve cutting line
Valve cutting line

Dedicated equipment developed in-house in order to achieve highly accurate assembling

Universal joint cup assembly machine
Universal joint cup assembly machine

Zero lash adjuster assembly machine
Zero lash adjuster assembly machine

Tensioner assembly machine
Tensioner assembly machine

Though our facility maintenance activities, we have achieved long-run use of high-productivity

equipment and stable quality assurance
Small-diameter bearing processing line

Small-diameter bearing processing line
Valve bore grinding line

Valve bore grinding line
Cup grinding line

Spider grinding processing line
Spider grinding processing line

Intermediate shaft line
Intermediate shaft line

Cup bore grinding line (Bryant grinder)
Cup bore grinding line (Bryant grinder)

Maintenance and inspection according to a maintenance calendar

Maintenance calendar
Maintenance calendar

Page TopPage Top