Plastic Foam Sponge Falling Ball Rebound Tester,Mattress Sponge Rebound test Machine ISO8307 ASTM D3574

The steel ball with a given diameter and mass is free-falling on the foam plastic sample from the specified height. The time of the steel ball bouncing and falling is measured by the photoelectric sensor, and the recoil height of the steel ball is calculated by the microprocessor.

l According to the test method of GB/T6670, the spring back height of each sample was measured for 3 times. The maximum height was selected as the spring back height of this sample, and the average value of the maximum height of 3 times was taken as the spring back height of this material.

l According to the test methods of ISO8307 and ASTM D3574, the spring back height of each sample was measured for 3 times, and the three samples were measured. The average value of 9 spring back heights was taken as the spring back height value of this material.Compared with the falling height of the steel ball, the percentage of this ratio is the rebound rate of the foam plastic.The resilience rate represents the resilience energy of foam plastics.

GB/T6670,ISO8307,ASTM D3574, ect.

Ball drop distance

GB/T6670:460+0.5%mm

ISO 8307 and ASTM D3574:500mm

Steel ball diameter

Φ 16-0.05 mm

Steel ball mass

16.7g

Bounce rate accuracy

<0.5%

Sample size

100 mm x 100 mm x 50mm

Power supply

AC220V/50HZ

Weight

45kg