The wood planer is one of the most frequently used machines in the woodworking industry. It is expected to remove large quantities of material efficiently and produce high quality work. Power requirements are proportional to width and depth of cut. Power consumption is slightly higher when cutting against the grain as compared to with the grain, and surface quality is much poorer. Power requirements increase with increasing feed rate. Dull knives overload moters, and cause production delays, as well as making sharpening difficult. A poor exhaust system forces the knives to cut shavings more than once, with loss of efficiency.
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