stone processing equipment, also known as bridge cutting machine, is a kind of stone cutting equipment. The traditional bridge cutting machine usually includes a longitudinal movement assembly, a transverse movement assembly arranged on the longitudinal movement assembly, and a cutting assembly arranged on the transverse movement assembly, wherein the longitudinal movement assembly generally uses a screw rod to push the slider Sliding on the slide rail to achieve longitudinal movement, however, because the weight of the traverse assembly and the cutting assembly are concentrated on the longitudinal movement assembly, the sliding friction between the slider and the slide rail is relatively large The thrust of the screw to push the slider is relatively large, the screw is easily damaged, the slider and the slide rail are also easy to wear, and the service life is relatively low.