Sponge Testing Equipment

1.Auto-zero: After the computer receives the instruction to start the test, the system automatically clears the zero.
2. Automatic return: after the specimen breaks, it returns to the initial position automatically.
3. Automatic gear change: according to the size of the load, it can switch to different gears to ensure the measurement accuracy.
4. Changing speed: the machine can change the test speed arbitrarily according to different specimens.

The instrument through the given diameter and quality of the steel ball in the specified height of the free fall on the foam sample, calculated the ball rebound height and steel ball drop height ratio of percentage both springback rate, with springback rate of foam elastic energy.