The BU-S Machines have the typical Urethan-Roll replaced by two bottom rolls (almost like a three rolls machine).
The machine employs backup rollers in order to compensate the small diameter bottom rolls and adjust the deflection.
The BU-S model is indicated to work with plates around 5-6 mm (thickness; and they are very flexible in terms of possible diameters. The high speed is also an important feature, they are faster than a standard Three-Rolls or Four-Rolls bending machines.
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