Large scale harvesting proceeds smoothly as each operation is designed to take place accurately. Each operation has been taken into consideration in the structure of the head: grabbing the tree, sawing, starting the feed, accurate positioning for sawing and clean delimbing. The head has a fixed roller system, which means that there are fewer wearing parts and that the saw is always in a straight position. Despite its high capacity, the head is fairly light and can be used with large forest machines.