Edging device The machine flanges copper pipes. cylinder A clamps down the pipe, cylinder B pre-flanges, cylinder C changes the tool, cylinder B completes flanging, and then the tool changer returns to its starting position. The tube is then released by cylinder A. If the emergency stop is activated or there is a loss of pressure in the device, all three safety functions are implemented immediately. The machine can only be operated from the initial position by pressing a button. B C A 7 60 1 2 3 4 5 1 A 0 1 B 0 C 1 0 8 9=1