During the winter of 1996/1997, FERIC observed a series of tests comparing chipping productivity and chip quality obtained when processing pulp logs mixed with log-ends. The chipping operation included log loaders, a drum debarker, a disc chipper, a disc screen, a horizontal-feed rotary hog, and attendant conveyors. This report presents productivity, cost, and product analysis results.
This study compared the productivity, cost and efficiency of a single-grip harvester and a shortwood forwarder for sorting pulpwood. Three methods were analyzed: in the first, two pulpwood grades were separated by the forwarder; in the second, this separation was conducted by the harvester; and in the third, the harvester did a three-way pulpwood sort (for grade and species)