Hydraulic tumblers loosen the muscle structure, rupture the muscle cells and increase the permeability of the cell membranes by tumbling or massaging, resulting in better absorption of the added soluble excipients. Properly tumbled and massaged products have better water holding capacity, lower cooking loss, better color and tenderness. Configuration of automatic opening and closing of the cylinder lid, reducing the labor intensity of employees, and effectively protect the sealing ring of the cylinder lid.