A lumber edger is a device with saws used to straighten and smooth rough lumber or bowed stock by making a cut along the sides of the boards. The result of this process is dimensional lumber.
In a saw mill the edger is next in line from the head saw. The feed and press rollers on the edger are usually powered, passing the lumber through the machine. The length of feed and tables depends upon the lumber produced by the head saw.
Edgers can be categorized as gang or shifting edgers. In gang edgers the saws remain stationary. In a shifting edger the saws can move left or right independently of one another. This allows setting the saws to best maximize the product that can be produced from a particular cant.
See also
References
- Sawmills eTool: Log Breakdown > Saws > Edgers
- The Lumber Manufacturer and Dealer, Volume 65, no. 824, April 5, 1920, p.21
- The Edger | Saw Mills
- p. 547
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