. Converting forest residue to structural flakeboard : the fingerling concept. Particle board; Wood waste Recycling. Table production by operating speed and log diameter Log diameter : Cutter head R/min (inches] : 300 : 350 : 400 Cubic feet per minute — 4 6 8 10 Large Residue The Arasmith Manufacturing Company drum chipper was chosen for chipping large residues. A contract resulted in a modified drum chipper with special knives to cut chips 2 1/2 inches long (fig. 5). This chipping process required cutting the residues to
. Converting forest residue to structural flakeboard : the fingerling concept. Particle board; Wood waste Recycling. Table production by operating speed and log diameter Log diameter : Cutter head R/min (inches] : 300 : 350 : 400 Cubic feet per minute — 4 6 8 10 Large Residue The Arasmith Manufacturing Company drum chipper was chosen for chipping large residues. A contract resulted in a modified drum chipper with special knives to cut chips 2 1/2 inches long (fig. 5). This chipping process required cutting the residues to the length of the drum and feeding the log axially parallel to the axis of the drum. The primary drawback is having to cut residues to a specified length. The principal advantage is that when chips are cut parallel to the axis of the log, horsepower consumption is not highly sensitive to log diameter. When the knives cut through the diameter of the log, large horsepowers are needed for larger logs because the cutting power increased proportional to the square of the log diameter. The modest horsepower required by the drum chipper will allow use of relatively low-powered units suited to in-the-woods chipping. The manufacturer estimates that a 42-inch-diameter, 60-inch- long drum chipper making 3/8-inch-thick fingerlings can be driven with a 200-hp diesel engine. Its output could be about 50 tons per hour of operation when fully loaded. Figure 5.—Modified drum 5. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gardner, Rulon B. cn; Schaffer, Erwin L. cn; Erickson, John R; Intermountain Forest and Range Experiment Station (Ogden, Utah) 1n. Ogden, Utah : Intermountain Forest and Range Experiment Station, Forest Service, U. S. Dept. of Agriculture
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