FPRS Annual Review of Lumber Manufacturing

To remain competitive lumbermen have focused their efforts on three major areas: 1) machines and processes to improve the grade and appearance of lumber; 2) machines, and processes to increase the yield of lumber and secondary products from available log supply; and 3) adaptation of machines and processes to the raw materials at hand on the end products desired. The crook reducer is a machine that was developed cooperatively by the Southern Pine Lumber Co. of Diboll, Texas and W. C. Jones of SPIB. The machine is an attachment to a conventional sawmill planer that “straightens” the lumber before it is fed to the planer. A machine is now in the use that grades structural lumber by stressing it in bending and marking the grade on the piece. Double arbor edgers with less saw kerf and faster feed rates are taking the place of single-arbor edgers in some cases. A side-chipping edger has been successfully operated by Canadian Forest Products Co. of Vancouver, B. C. The machine eliminates sawdust and edger strips and reduces them to chips. Roundwood Corporation of America has built a round producing machine that produces furniture dimension in round form. Advantages listed are: greater yield per unit of logs, low transportation and storage cost, faster drying with less degrade, longer lathe bit life, less waste, and more attractive wood grain patterns. Flack-Jones Lumber Co., in Summerville, S. C., has installed a new sawmill geared to low-grade pine logs. A scrag mill is used to reduce the logs to cants. They are further processed by a band-resaw and a double arbor edger. Stud mills are also moving into the South with locations planned or under construction in Texas, Alabama, and Mississippi.

You must be logged in to download any documents. Please login (login accounts are free) or learn how to Become a Member