Mini-dryer similar to the previous model, but arranged to be transported by small tractors. The Sitrex machine is a small machine that does valuable wrapping work for small bales cylindrical forage bales, turning them into silage. Because of its characteristics, it can be hitched to any type of tractor by means of a three-point hitch points and is driven by means of cardan shaft. The wrapping of the bales is fully automatic and the operator only needs to determine the type of wrapping desired (2/4/6 film overlaps) by starting the operation by means of a start lever. When the work completed, the machine stops automatically.