The automatic saw is made up of cylinder positioning the upper plate of the vacuum sucker of the gantry frame, the longitudinal saw trolley, the compression structure of the longitudinal saw trolley, the transmission equipment of the longitudinal saw trolley, the vertical saw head, the horizontal saw frame, the horizontal saw trolley, the horizontal saw head, the chain transmission equipment of the horizontal saw trolley, and the automatic stacking of the lower plate of the vacuum sucker of the gantry frame. 2. The whole automatic saw action is controlled to realize the automation of saw cutting and stacking, saving manpower 3. Only one person can operate. Automatic saw by cylinder positioning monitoring, accurate, avoid waste, and saw out of the board is relatively smooth, good effect. Saw edge machine with good dust removal effect, the whole machine everywhere dust point concentration, can too strong dust. 5 Adopt high precision wear-resisting guide rail, high precision of saw edge,greatly improve production efficiency, increase profit. Supply various types of four-sided saw, can be customized according to customer requirements.