Abstract: The growth/buckle tester relates to a device for testing strength of metal cans. Using the position of the can on top of Belleville spring and expandable rubber bushing, holding by sectional clamps with turning cams and middle central part from outside, permitted create uniform holding and clamping force in horizontal direction. Using chamfers on holding plates and turning cams for holding the testing can vertically create necessary space around the stand for growth/buckle tests. The chamber created inside the can with almost the same volume of volume of air for the test reducing dispersion of measurement values. Cuts around of Bellville spring make path for delivering testing air pressure for the growth/buckle tests. Angle of rotation turning cams depend and control by outside diameter of testing can.

Abstract: Current can/end growth/buckle tester use inside the dome area of the can for location of the can during test, therefore cans with different height have the same vertical position during the test and do not depend from height of the can. Using flanged long bushing for locating the can with different height and holding expandable plug and distribution parts for air pressure permitted reduce outside dimensions of the tester and reduce weight. Use the position of the testing can on top of expandable rubber bushing by inside the dome area of the can, permitted using almost the same volume of the growth/buckle air for any can, therefore reduce dispersion of measurement values. Area for growth/buckle tests is sealed by expandable rubber bushing with the special internal shape and durometer, which has ability to sealed by inflation any diameter of the testing can and holding growth/buckle pressure during the test.