1, the band saw blade may wear out. If the saw blade has repair value, it can be repaired. If not, replace the saw blade.

2, band saw blade may be loose. Tighten the saw blade.

3, band sawing feed rate too fast. Adjust the speed control valve to make the feed rate slower.

4. The distance between the two guide arms of the band sawing machine is too large. Adjust the distance of the guide arm, generally 6-10 cm larger than the material.

5. The small bearing of the jig saw in the leading edge of the CNC sawing machine may be damaged. Replace small bearings.