Automatic tenon - folding machine Auto tenon-folding machine is mainly used for folding the straight seam. The width can be adjustable and the length is no limit. It can fold one side or two sides at one time, also can fold the sheet or bars at one time. It also can fold in C type for one side and fold J type for another side at one time. It has high efficiency to save the labors and the folding edge is more beautiful. The power is 1.5KW and can fold thickness of 0.2-1.2mm plates. The dimension of machine is 2.5x1.1x1.5M.