Rubber Flex, Fatigue & Crack Growth Testing Equipment

A shoe sole or a molded rubber part can pass every static test and still crack after thousands of bends in service. Flex testing reproduces that bending in the laboratory, so a crack starts and grows under controlled stroke and speed and compounds can be ranked by how long they last. NextGen works to ASTM D430, ASTM D813 and ASTM D1052 for these methods.

The range covers De Mattia testers for flex cracking and cut growth, Ross flex testers that bend soles and sheet materials through a right angle over a rod, and a Ross tester with its own low-temperature chamber for cold flex resistance. Testers are installed and calibrated on site, your team is trained on specimen preparation and cycle counts, and support continues for the life of the instrument.