It is used to complete the overturning of the sand mold or sand core. The structure adopts "O"-shaped hydraulic four-guide column, double-cylinder drawing, good rigidity, stable and reliable drawing, hydraulic transmission, PLC control, vibration assisted drawing, and the drawing force can be Adjustment, high precision of mold release, stable turnover, mold release meets the process requirements of slow pressing and slow calcining, smooth and no impact