Manual steel rod bender, reasonable design, simple structure and can be bend steel rod diameter with 4-20mm to any required shape applying to bridge, tunnel and small, medium as well as large construction projects. The bending machine mainly bends the main rib, and the general steel bar diameter more than 20mm. Mainly divided into manual control angle and computer panel input angle automatic bending, generally bending 60 degrees, 90 degrees, 135 degrees more.1. Enhanced worm gear, steel-forged worm and solid external gear. Fully solid square steel, disc and surface grinding machine processing. 2. NJ215 roller bearing is adopted for the spindle. Adjustable motor board & tension triangle belt. 3. Automatic type:T-groove on the side of the working disc is provided with stop screw, and the working disc can be returned automatically when a certain angle is selected to improve efficiency. 4. CNC type:fully solid working disc, encoder and PLC CNC operating panel for easy operation and precise angle.