Bandsaw Troubleshooting Guide

 

Problem Possible Causes
Premature and excessive tooth wear
Feed pressure too light
Band speed too slow
Insufficient coolant, improper coolant mix, or wrong coolant
Improper tooth selection
Feed pressure too high
Guide hitting teeth alignment
Improper break-in with new band
Tooth strippage
Teeth too coarse for material thickness (select finer pitch blade)
Material not securely vised
Insufficient or improper coolant
Excessive feed pressure
Band speed too slow
Chips loaded in gullet (replace or adjust chip brush)
Finished surface too rough
Improper blade selection (select finer pitch blade)
Band speed too slow
Feedrate too high
Improper coolant for material being cut
Premature blade breakage
Thicknes of blade too heavy for diameter of guide wheels
Band tension too high
Improper speed
Excessive feed pressure
Brittle weld
Saw out of alignment
Improper coolant
Band wheels worn
Cutting rate too slow
Incorrect band speed
Incorrect feed pressure
Blade pitch too fine
Gullets loaded with chips
Speed too slow
Blade pitch too fine
Chip brush not working properly
Insufficient coolant, improper coolant mix, or improper coolant used
Band squeals
Feed rate too slow
Insufficient coolant flow
Belly shaped cuts
Improper blade tension
Guide arm is too far from workpiece
Blade pitch too fine
Excessive feed force
Blade leading in cut
Excessive feed force or feed rate
Possible hard inclusion (use cutting oil)
Chip brush not working properly
Blade tension too low
Band develops twist
Wrong blade width for radius being cut (select narrower blade)
Binding in cut (adjust blade tension)
Saw guides too close to workpiece
Band stalls in work
Feed pressure too great
Improper blade tension
Blade pitch too coarse for material being cut
Burring or mushrooming of back edge
Improper blade tension
Excessive feed pressure
Blade pitch too fine
Improper guide alignment
Band scoring
Band has side wear or grooving
Improper alignment of saw guides
Worn guides
Blade not running true against saw guide backup bearing
Clicking noise against saw guide backup bearing indicates burr on back edge of band
Weld not in proper alignment
Saw guide backup bearing worn
Improper blade tracking (check band wheel alignment)
Band develops negative camber
Band is riding on saw guide backup bearing too heavily
Excessive feed force
Poor tooth penetration (select a coarser pitch blade for increased penetration)
Saw guide is too far from workpiece or not locked
Blade vibration
Guides poorly adjusted
Improper band speed
Blade tension too low
Feedrate too low
Blade pitch too coarse for material being cut
Workpiece not properly secured
Chip welding
Excessive feed pressure
Excessive cutting speed
Chip brush not working properly
Insufficient or improper coolant