Arrangement of two broadband- and single piece sanding machine respectively in one line, through chaining, from which the former standardly sands the workpiece from below and the second one from above.

The machines are standardly equipped with units sanding from above. If the bottom side of the workpiece is to be sanded, the workpiece needs to be turned and the sanding machine has to go through from the top.Two sanding machines chained in a line. Usually the first machine sands from below and the second one from the top.

High workpiece throughputs this process is uneconomical.

In businesses with hight sanding occurence, sanders which operate from above will be connected to one which operates from beneath.