Analiza isplativosti harvestera John Deere 1470D Eco III u nasadima topola (Populus × Canadensis) – studija slučaja

In the last few years, harvesters have been increasingly used in stands of deciduous tree species. The use of harvesters in Serbia began in 2008 with John Deere 1470D Eco III and it was used for felling trees and production of wood assortments in poplar plantations in the lowland area. The aim of this paper is to determine maximum profit by engaging a harvester in the given conditions, as well as to determine the total costs of the asset. Harvester achieved a total of 18,392 machine hours (MH), with an average of 1,415 hours per year. The average fuel consumption during the entire period was 16.3 l/h, or 0.76 l/m3. The highest cost of spare parts was in the 6th year (around 66,000 euros) and in the 12th year (around 82,000 euros). The total cost of spare parts and services was 656,878 euros. Based on the planning that the number of work days per year is 200, an amortization period of 7 years is obtained (the point of intersection of current and average profit growth). Results of this research indicate that harvesters older than 7 years should be replaced with new machines, due to high maintenance costs. However, these are only initial researches, which will be continued with data on several harvesters that have been procured in the meantime.Posljednjih nekoliko godina harvesteri se sve više koriste u sastojinama listopadnih vrsta drveća. Korištenje harvestera u Srbiji počelo je 2008. godine sa John Deere 1470D Eco III i služio je za sječu stabala i proizvodnju drvnih sortimenata u nasadima topola u nizinskom području. Cilj ovoga rada je odrediti maksimalnu dobit angažiranjem harvestera u zadanim uvjetima, kao i utvrditi ukupne troškove sredstava. Harvester je postigao ukupno 18,392 strojna sata (MH), s prosjekom od 1,415 sati godišnje. Prosječna potrošnja goriva tijekom cijelog razdoblja iznosila je 16.3 l/h, odnosno 0.76 l/m3. Najveći trošak rezervnih dijelova bio je u 6. godini (oko 66,000 eura) i u 12. godini (oko 82,000 eura). Ukupni troškovi rezervnih dijelova i usluga bili su 656,878 eura. Na temelju planiranja da je broj radnih dana u godini 200, dobiva se razdoblje amortizacije od 7 godina (točka presjeka tekućeg i prosječnog rasta dobiti). Ova informacija nam govori da bismo nakon 7. godine trebali harvester prodati i kupiti novi. No, ovo su samo početna istraživanja, koja će se nastaviti s podacima o nekoliko harvestera, koji su u međuvremenu nabavljeni