Abstract: A tree harvester for felling, limbing and cross-cutting tree trunks, comprising a limbing head (15) and felling head (16) assembly which is carried by a boom system. The limbing head (15) and the felling head (16) are detachably connectable to one another and are commonly pivotal about a point (21) on the boom system in conjunction with a tree felling operation. The limbing head (15) and the felling head (16) can be moved away from one another along the boom system (10, 18) in conjunction with a tree-trunk limbing and cross-cutting operation, and also in different directions away from the location on the boom system at which they are commonly pivotal.

Abstract: A wood processor for felling, delimbing and cutting tree-trunks includes a system of arms containing at least two beams (10, 12) mutually movable in the longitudinal direction, one in the other. The wood processor also includes a unit composed of a delimbing head (13) and a felling head (14) attached to one end of the arm system. At its other end, the arm system is attached to a vehicle, for example a wood tractor, and is arranged substantially horizontally. The whole unit (13, 14) is pivotable about a turning point (25) at one end of the arm system. The delimbing head (13) is attached to the inner beam of the beams (12) in the arm system and the felling head (14) is attached to the outer beam of the beams (10) in the arm system, so that the delimbing head (13) is movably arranged in the longitudinal direction of the beams (10, 12) in relation to the felling head (14).