СГА-1 consists of a welded frame, a worm gear mounted on the frame with a bending disk fixed to it. The central and bending pins are installed on the bending disk. A stop pin with a roller is installed in the hole of the bar welded to the top sheet of the frame.
Rotation to the input shaft of the worm gear is transmitted through gears and V-belt transmission from the electric motor. Changing the speed of the bending disk is carried out by shifting the gears. To comply with environmental requirements, it is possible to remove scale from the sheet of the frame through a funnel connected to the workshop exhaust ventilation.
СГА-1 works as follows: the bar is placed on the bending disk between the central pin with the roller, the bending pin and the stop pin with the roller. When the disk rotates, the bending pin jams the bar and bends it around the roller to the angle specified by the cam setting. When the disc is returned, the bending pin releases the bent bar and stops after the second cam presses the second limit switch. Products from reinforcing bars with a radius of 55 mm bend are bent around the roller, and with a radius of 20 mm – directly around the central finger. Products from rods with a diameter of up to 14 mm with an internal radius of 12 mm are bent when installing the plug and bracket.