Video display of the operation of the steel hook fatigue testing machine

The leather shoe hook center fatigue testing machine imitates the force on the hook center inside the finished shoe when a person wears it. The heel end of the hook center test piece is fixed on the fixture of the hook center fatigue tester. The hook center test piece is subjected to a repeated cycle of force through the force arm crossbeam of the hook center fatigue tester, and the hook center test piece is repeatedly twisted until the groove center test piece breaks or reaches the set number of twists. Evaluate the fatigue resistance of hook center repeated bending by counting the number of twists and turns.