The bar bending machine consists of an electric motor, a coupling, a circular plate, a worm gear drive, and an extended shaft. An electric motor transmits power to a gearbox, which decreases speed and increases torque.
A circular plate bends the bar using this gearbox. It can usually bend bars in the range of 6 mm to 16 mm. The auto reverse and auto forward mechanism is also powered by an electrical system that consists of a contactor and limit switch. The bar can be readjusted due to the spring back effect.
A bar bending machine is made up of the following parts, that are visible to its user:
- Moving bending roller (This roller basically pushes the bar in the bending direction. It has normally diameter less than the central roller. It rotates around the central roller)
- Center roller (This is the roller, around which the bar rotates. It itself remains stationary. It is usually made of aluminum or steel with a very high strength grade. Usually, its surface is also lubricated to aid in the bar bending process)
- Adjustable stopper
- Pilot lamp (This light lamp indicates that power is being supplied to the machine)
- Main switch
- Angle setter (dial type or there is a circular disc with holes all around its circumference. You can either set the angle by a dial or put a pin in the respective hole. Note that each hole usually represents an angle. Normally there is the only option available for the angle setter)
- Operation button On/Off
- Angle stopper (Left & Right)
- Emergency stop button
- Plug-in for foot switch or some other switching on mechanism.
- Roller set
- Foot Operated Switch (Usually it is a button which when pushed by your feet starts the machine’s operation).