OverviewThis machine can set the number of bending times and display the numbers directly. It is a dual column rubber cracking fatigue testing machine, suitable for rubber factories and research institutions to inspect the fatigue cracking degree of various rubbers.2, Main technical specifications1. Lower gripper reciprocating frequency: 300 ± 10 times/min2. Adjustable distance of upper and lower clamps: 200mm3. Adjustable distance of eccentric wheel: 50mm4. Lower gripper