The S82 is a new two-wheel drive head for thinning.
The head is described as being nimble and light, and compact yet strong. This design enables it to be used effectively when thinning in dense stands. Good productivity is achieved through the two-wheel feed that allows the stems to turn in the head, even those that are forked or very crooked. The S82 also uses Komatsu’s Flex Friction Control, which senses the stem's position relative to the frame and adjusts the knife pressure accordingly. Another feature is the smart Constant Cut saw unit, which ensures the correct cutting speed throughout the entire cutting cycle. This improves productivity and minimizes chain shot and splitting risks.
The head can also be equipped with an optional multi-tree accumulator, which further increases production capacity. Design focus has also gone into improved servicing and maintenance, smart hose routing, and a well-protected head computer that helps minimize unplanned downtime and increase productivity. The head can be equipped with an extra measurement point for even greater measurement accuracy, as well as different feed rollers. Source: http://www.komatsuforest.com/default.aspx?id=1848&newsid=148849