Function: Its primary purpose is to adjust the elongation and tension of the saw blade. This process, called tensioning, helps correct warping or distortion in the blade.
Purpose of Tensioning: Proper tensioning ensures that the saw blade remains flat and runs steadily on the wheels of a saw, preventing it from running off its path and enabling clean, straight cuts.
Mechanism: The machine uses a set of rollers to apply controlled pressure to the saw blade, often with adjustable mechanisms like the screw and spring visible in the image to fine-tune the pressure based on the blade's specifications.
Benefits: Using a roller tensioning machine can tension saws much faster and with less effort than traditional methods involving a hammer and anvil.