Policy for Quality


We consistently provide springs and services that comply with the quality standard required by customers.
We all strive to keep improving quality by returning to production site, current situation and actual product.

Verification of Basic Properties

We measure required properties of spring accurately and efficiently.

Measurement of Spring Properties
Measurement of Spring Geometry
Image Measurement System
Coil Flexibility Testing

Reliability Testing

We test reliability of springs.

Life Cycle Testing
Deterioration Testing in High Temperature
Fracture Observation by SEM

Material Verification

We check the conditions of spring wire.

Torsion Strength Testing
Tensile Strength Testing
Hardness Testing
Observation of Metal Composition

Coping with Requests for Being Clean

Springs with strict requirements for being clean, such as automotive springs, are washed by automatic washing machine in the clean booth.

Clean Booth
Automatic Washing Machine