The present invention relates generally to an improved tree processing system enabling efficient, reliable and accurate processing of harvested trees. The system includes a grabbing head having first grabbing arms and a delimbing head having second grabbing arms. The first and second grabbing arms are mounted on a boom system and can be activated to grab the tree stem of a harvested tree. When grabbed, the boom system can be selectively extended or retracted to effect delimbining of a felled tree. Each of the delimbing head and grabbing head includes saws allowing an operator to selectively activate one or both saws to cut a length of timber.
