CHARACTERISTICS OF THE CROSS-CUTTING OPERATION ON LANDING AREA

Cross-cutting wood on landing area aims to transform wood pieces harvested to length of assortments that will be delivered to customer. Work conditions in landing area, other than in cutting area, require a separate analysis of cross-cutting operation in the specific conditions from landing area. Research carried out in the mountains area (Vâlsan Valley, Făgăras Mountains) on a total of 351 pieces, with a volume of 361,581 m 3 in total working time of 47,880 s and the cut surface of 260,700 cm 2 , showed that there can established significant correlations between the number of sections, cut surface, work productivity and the diameter of breast height of the tree marked, and between the average number of sections, cut surface and the tree volume. For specific work conditions on the landing area, the wood cross-cutting with mechanical chain saw Husqvarna 365, revealed the following values: the average number of cross/cutting cross-cuttings⋅m -3 ; operative time work - 64% from total work time; specific cut surface - 721 cm 2 ⋅m -3 ; cutting productivity - 73.33 cm 2 ⋅s -1