As you can see from the video, this is a small factory. The workers are already too old.
From the control button, you can know whether the controller of the profile bending machine is the old model in the BIT series machine (the new model uses the joystick design).
Because bars are solid metal, they bend very well. Bending bars is the easiest when the sections to be bent are rounds, half rounds, squares, hexagons, or rectangular, and need to be bent “the easy way.” Bending bars the easy way (y-y axis) creates a belt-like shape; bending bars “the hard way” (x-x axis) creates what looks like a giant metal washer. All else being equal, bending bars that are flat the hard way is the most difficult bar bending process.
There is no mathematical formula to determine the minimum bending radius of steel sections.
To explain this better, let’s look at steel bending. The steel is bent using a cold rolling bending process.