Analysis of main variables on productivity of wood harvesting machines in function of land physical and stand characteristics and forest operation planning.
DOI:
https://doi.org/10.5380/rf.v37i3.9926Keywords:
Colheita florestal, produtividade e custos de colheita florestal.Abstract
The objective of this study was to evaluate technical and economic pinus wood cutting in different operational conditions, using a harvester with headstock LogMax 7000. The technical evaluation consisted in motion and time study obtaining the productivity and operational efficiency. The economic evaluation was based on production and operational cost determination. The experimental design was complete randomized, with three treatments and three repetitions. The results showed that the logs processing activity consumed most of the operational time, approximately 55% of the total cycle time in all operational condition evaluated. The interruption consumed approximately 20% of the total cycle time. The productivity and efficiency operational value of the machine in all different operational conditions evaluated were similar, by the Tukey test, at the level of 5% of probability. The production and operational costs of the track harvester were US$ 115,72 per effective worked hour and the US$ 3,56 per cubic meters, respectively.
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