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Winch-assist felling systems typically use feller-director type felling heads. However, harvesting contractors in Washington State have started using feller-bunchers equipped with hot saws (continuous rotation disc saws) because they offer the potential of better productivity, particularly in small diameter stands and stands with a high number of non-merchantable stems. FPInnovations conducted a short-term productivity evaluation of a hot saw buncher using a Summit Engineering’s winch-assist system operating at a site in Washington. A video is available (Summit traction-assist with feller-buncher) and a report will be written in the Fall 2016. Please contact or for more information.

Winch -assist buncher equipped with a hot saw