Turkish Journal of Forestry (Dec 2022)
Comparison of some debarking tools in terms of productivity and debarking quality
Abstract
In this research, the use of the motosoyar, which was previously developed by mounting a peeling device on a brush cutter, in the field and the determination of the resulting efficiency; in addition, it was aimed to determine the implementation potential of the motosoyar by comparing the work productivity of the motosoyar with the chainsaw-mounted debarking equipment and the axe. In addition, it was aimed to compare the debarking quality of these three tools by accepting the amount of bark remaining on the log surface as an indicator. A certified employee; in the same field conditions, in the same stand, in the same tree species (Pinus brutia Ten.), cut and sorted on the same dates, the bark of logs of similar height and different diameters was stripped with these three tools. Work efficiency was determined through time studies; debarking quality was calculated over the amount of bark remaining on the log. In debarking operations of logs with an average diameter of 25 cm, medium diameter and 3 m length, the chainsaw was more efficient in all time periods (3.65 m3/h), motosoyar (3.06 m3/h) was found to be efficient compared to the axe (1.25 m3/h), but inefficient compared to the chainsaw. In terms of debarking quality, it has been determined that the axe peels more cleanly (remaining shell amount; 1.65%), the chainsaw follows it with a rate of 2.73%, and the motosoyar peels at a level of 3.42%. With the improvement of the system structure (arrangement of belt and shaft arm) of motosoyar, it has shown a performance that can be as efficient and useful as a chainsaw. It has been revealed that Motosoyar has implementation potential as well as theoretical, technical, economic and ergonomic potential in debarking works.
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