A linear storage system can be closed or open. The closed type is for
volumes up to 50,000 m³ (i.e. bark as fuel for energy generation) and
open type for volumes up to 200,000 m³. The chips are reclaimed by a
conical screw of 10 to 18 m. Also a boom type stacker with crane type
belt reclaimer and reversible conveyer for in and out feed typical for the
paper industry could be used for high capacity plants.