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Common Causes of Back Cracks in Band Saw Blades

Back Cracks in Band Saw Blades

When band saw blades are over-used, they may begin to experience back cracking ? a serious issue that can damage your blade permanently. This issue can be caused by many problems ranging from a wide variety of issues we will cover in this video. Looking out for these fourteen common issues, you can help prevent band saw blades backs from cracking.

One of the main problems that causes saw blade back crack is when you have your machine?s guide arms spread to far apart, so be sure to keep them properly spread. Always make sure the guide to wheel alignment is correct and that the guides are not too tight. If the top guide is missing, then back cracking is a definite risk to your operation.

If you observe the band saw blade rubbing on the wheel flange, than that can be a sign that back crack had occurred. Making sure your top guide doesn?t have a notch on it can help prevent back crack. Additionally, if the bend of the saw is too straight than back crack may occur.

Before starting up the saw make sure your speed settings are set correctly and always make sure the saw is not run for too long. Make sure the feed rate is set correctly and the pressure isn?t too high. And always ensure that the saw has the proper amount of tension.

Back cracks are often the cause of many problems, from crooked welds to bandsaw blade breakage. The following is a list of most of the known problems that cause cracks in the back of a bandsaw blade.

  1. Guide arms are too far apart.
  2. Guide to wheel alignment is wrong.
  3. Top guide is missing.
  4. Bandsaw blade is rubbing wheel flange.
  5. Notch in top guide.
  6. Guides too tight.
  7. Straightness of bend.
  8. Speed to fast.
  9. Running time too long.
  10. Tension too high.
  11. Feed rate too heavy.
  12. Feed pressure too high.
  13. Coolant flow too low.
  14. Coolant mix improper.

Last but not least, always keep track of your coolant mix and flow to make sure that it is properly functioning. If you have any questions, please don?t hesitate to call Sawblade.com at 800-754-6920. Our experienced customer service professionals are ready to take your call.