product description:
use:

Used to detect protrusions. It consists of a ball chain with a ball diameter of 3.2mm and a ball center distance of 4mm. The ball chain is fixed on a ball with a diameter of 115mm and a mass of 2.5kg, and is arranged in a ring.

Test principle:

Holding the ball with one hand, loop the chain link of the test chain around the protrusions on the inside of the fence and the crib-like, and slowly lower the ball so that the ball hangs freely. Watch to see if the chain gets caught under the load of the ball.

Repeat the test 3 times.

technical parameter:

1. Sphere mass: 2.5 kg±12.5g;

2. Sphere diameter: 115 mm;

3. Ball diameter of the ball chain: 3.2±0.2 mm;

4. Chain circumference: 400-405 mm;

5. Size: 115*115*116mm;

6. Material: stainless steel mirror surface treatment, internal iron sand filling;

According to the standard: GB, QB/T, EN, CNS, B, etc.