The wood grain powder coating machine has been developed to automatically wrap metal profiles with a plastic film. It includes an inlet belt, on top of which the loaded profiles are driven towards the folding and welding area. The ultrasound system welds the wrapped film on its longitudinal edges. The plastic film rolls are inserted on a motorized self-centering shaft equipped with a braking system. The film replacement is made in a few seconds and the rolls can have variable sizes: from from 6 to 27 inches. In such a way, it is possible to reduce the material wastage when different profile dimensions are used. At the end, the film is automatically cut by a blade in the cutting station located at the beginning of the outlet belt. Upon request, the wood grain powder coating machine can be equipped with a loading and/or unloading conveyor belt, to facilitate moving profiles inside and/or outside the bagging machine.