Using small diameter hardwoods in sawmill industry; Part 2: Process cost calculation and determination of the maximum log prize
Pages: 50 - 54
One major factor which influences the producibility of small diameter hardwood is besides the material availability, the cost of the first break-down. In Part 2 of this study three different types of saw mill technologies are analysed. First a band saw head rig, second a gang saw and finally a band saw line were compared. The results showed high variation of the cost depending on sawing technology and the production volume. The data showed that only lowest log price qualities could be paid for the small diameter timber due to high processing cost. The study shows that a cost-effective small diameter hardwood processing is only possible using frame saw and reducer
band saw systems for the species sycamore, oak and ash. A profitable processing of small diameter beech is not possible. In order to enhance yield, new technologies or yield limits for the minimal acceptance of board width have to be discussed.