How To Replace The Saw Blade of Band Saw Machine

How should the band saw blade be replaced? How to adjust?

When replacing the band saw blade, first open the upper and lower guard doors, loosen the fixed screws of the sliding plate, turn the lifting hand wheel to lower the upper saw wheel and loosen the saw blade. Take out the old saw blade, and put the sharpened saw blade on the upper and lower saw wheels. Pay attention to the sharp angle direction of the saw teeth downward, do not turn up, and then turn the lifting hand wheel to raise the upper saw wheel and tension the saw blade. Then turn the upper saw wheel by hand to see if the saw teeth are all exposed on the outer side of the saw wheel rim. If not, adjust the upper saw wheel until the saw teeth are exposed on the rim. Move steadily at the edges of the upper and lower saw wheels and be perpendicular to the worktable.

There are two types of saw blade tensioning devices: spring and hammer. This machine is a spring device. The base tension shall be determined according to the width, thickness, speed, etc. of the saw blade. Usually, the finger is used to press the saw blade to determine whether its tension is appropriate according to the left and right bending of the saw blade. In general, when pressing the saw blade by hand, the bending of the saw blade should be between 3.2~6.4 mm.

The width of the saw blade shall be consistent with the width of the saw wheel surface, and shall not exceed the width of the wheel surface.

The saw blade of band saw machine is clamped in the middle of the saw clip. The bottom of the saw tooth should be in a straight line with the outer edge of the saw clip. The saw blade should not be clamped too tightly. It should be able to slide in the middle of the saw clip. There should be a gap on both sides. The gap on each side is about 0.04~0.08mm. The back of the saw blade is about 0.8mm away from the pulley. If the saw blade has contacted the pulley when it is idling, it means that the saw blade is back, or the pulley is front, or the tension of the saw blade disappears. The upper saw wheel or pulley should be adjusted, or the saw blade should be removed before being checked, rolled and trimmed.