One,Rubber Impact Rebound TesterParameters:

This machine is a pendulum-type impact elasticity tester with a potential energy of 0.5J, suitable for determining the rebound values of sulfur rubber with hardness ranging from 30 to 85 IRHD.
Bushing diameter: φ15mm
2. Impact Quality: 0.35 ± 0.1 kg
3. Resilience Indicating Error: ±0.5%