BAN D saw cutting of square, rectangular, or round tubing in bundles allows you to cut a high number of parts per shift, resulting in increased production. This part volume efficiency, unfortunately, is offset by a 20 percent to 25 percent reduction in band life. Therefore, a thorough evaluation of your equipment, operator skills, and throughput is essential to ensure maximum blade life. A band saw with a bundling attachment-normally an added cost option for applying top-clamping force to eliminate material movement-will not add appreciable labor cost to a bundle-sawing operation. A common problem associated with sawing square and rectangle tubing is that the blade is cutting a larger surface area as it travels through the upper and lower surfaces of a bundle than when it is cutting through vertical walls. To lessen this problem, some manufacturers offer vertical saws with frames canted forward or inclined bands on twin-post saws. Scissors-type saws do not encounter the problem previously mentioned until the saw head reaches a nearly horizontal position at the end of the cut.
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