Desempenho técnico e econômico de diferentes harvesters e forwarders na colheita de eucalipto

Abstract

The forest sector is expanding necessity in developing studies of machines with the goal to evaluate the roductive capacity of adapted excavators and forwarders in order to optimize logging. The study has the objective to evaluate the technical and economic performance of cut to length system in the eucalyptus harvest under the different harvesters and forwarders; cutting machines and processing (harvesters) and extraction machines (forwarders). The cutting machines were: 1) John Deere 210G LC with Head Waratah H215E; 2) Volvo EC220D with Head Ponsse H77euca and the extraction of the wood were with the machines; 1) Forwarder Tigercat 1075B; 2) Forwarder Ponsse Elephant; 3) Forwarder Komatsu 890.3. The aspects evaluated were study of times and movements, productivity, operational cost, production cost, operational efficiency and fuel consumption. It was observed that require more processing time for cutting and loading and unloading spent more time in the extraction. The harvester 2 and forwarders 2 and 3 showed lower fuel consumption and lower operating costs. On the other hand, the harvester 1 and forwarder 1 had showed higher performance and lower cost of production in forest harvesting.