The use of patented band saw cutting technology, compared to the disc cutting which can reduce production losses 8%, saving energy consumption 50% The preformed green body is cut into pieces by a block type cutting machine. And then rough flip spreader will block a good cutting of the green body horizontal rotation, lifting to the finished product cutting area for cutting. After the first line-cutting, the 90-turn machine rotated 90 degrees horizontally in the horizontal direction to change the cutting direction. And then through the rough flip spreader to change over the direction of the green body overturned, and then transported to the cutting machine, the second finished cutting.