This testing machine is primarily used for the repeated bending tests of metal wire, in compliance with GB/T 238-2002 standard. It is designed to assess the performance of metal wires under repeated bending, in terms of their ability to withstand plastic deformation and to reveal any defects. With the addition of a plate clamping device, bending tests can also be conducted on plate samples. Widely used in the steel and construction industries, as well as by manufacturers of wire ropes, cables, and other metal products. Suitable for metal wires with diameters ranging from φ0.3 to φ10, and with special fixtures, it can also perform bending tests on other specifications.