AT08-EN YO-yo Ball Tester  

Application of EN YO-yo Ball Tester

EN YO-yo Ball Tester is used for testing the elongation performance of yo - yo ball elastic rope toy.

Testing Principle of EN YO-yo Ball Tester

1. Clamp the elastic rope of yo-yo ball on the top fixture.

2. The indicator aim at the root of elastic rope of the yo-yo ball.

3. Choose suitable weight of fixture, nip the root of elastic rope of the yo-yo ball.

4. Slowly release, make the fixture free droop.

5. Point the under pointer to fixture.

6. Read and calculate the length of the yo-yo ball stretch from the scaleplate.

Standards of EN YO-yo Ball Tester

EN71-1 section 8.37.

Key Specification of EN YO-yo Ball Tester