the key point is that sheet metal roller can bend big style. like this picture, it is not possible to work in the press brake.

so, sheet metal roller has a wide use in all kinds of industries.  it is very easy to find this example in our life, for example, water building or else.

of course, there are two kinds of sheet metal roller, one is mechanical roller, another is hydraulic roller.

if you use them usually, we advise you to choose hydraulic ones, if you use very less, we advise to choose mechanical sheet metal roller , after all, it can save lots of money.