Falling Dart Impact Testing Machine
It is used to measure the impact mass and energy of 50% plastic film or sheet when the plastic film or sheet with a thickness of less than 1mm is impacted by a free falling dart at a given height.
Before starting the test, choose test method, and estimate an initial mass and Îm. Start the test. If the first specimen fails, decrease the mass of the falling dart by Îm. If the first specimen is not a failure, increase the mass of the falling dart by Îm. Continue the test according to this rule. In brief, increase or decrease by Îm according to whether the former specimen is a failure or not. After 20 specimens, calculate the total number of failed specimens N. If N equals to 10, the test is over. If N is less than 10, add specimens and continue to test until N equals to 10. If N is greater than 10, add specimen and continue the test until the number of non-failure specimens reaches 10. Then the tester calculates the test results automatically according to specific formulas.
This instrument conforms to various national and international standards:
ASTM D1709, ISO 7765-1-1988, JIS K7124-1, GB/T 9639.1-2008
Test Method: Method A or Method B is optional
Test Range: Method A: 50-2000 g
Method B: 300-2000 g
Accuracy: 0.1 g (0.1J)
Specimen Clamp: Pneumatic Clamp
Pressure of Gas Supply: 0.6 MPa (outside of supply scope)
Power Supply: AC 220V 50Hz
Net Weight: 70 kg
Method A: 500 mm (L) *450 mm (W) * 1320 mm (H)
Method B: 500 mm (L) * 450 mm (W) * 2160 mm (H)