Electronic torsion testing machine

It is suitable for testing the tensile and torsional performance of high locking nuts. The test content includes locking torque, twisting off torque, pretightening force and loosening torque, etc. The locking torque refers to the maximum torque during the screwing-in process, and the sampling area can be set; the loosening torque refers to the rotational torque under no axial load, that is, the maximum or minimum torque in a screw-out area, and the sampling area can be set . Parameters such as the total friction parameter µtotal, the thread friction parameter µthread, the end face friction coefficient µendface, and the tightening coefficient K can be obtained.