Abstract
The purpose of this study is to investigate the productivity of the Urus MIII cable crane during yarding of spruce timber from spruce stands in North Eastern Turkey. Cable crane productivity is determined by using the methods of work and time study. The research concludes that some working characteristics of the Urus MIII cable crane such as transportation speed of the carriage (loaded and unloaded), load volume, time consumptions of felling area, fuel consumptions, productivity of the cable crane and transport distance have an absolute impact on the productivity of the cable crane. In this study, for average 210 meters transporting distance, productivity of Urus MIII cable crane was found 10.08 m³/hr on two different corridors. The average fuel consumption was 3.5 - 4.0 liters per operating hour of the Urus MIII cable crane. Costs of Urus MIII cable crane are calculated to 4.6 $/m³. Key words: Urus MIII cable crane, carriage, timber production, time study.
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