1. The Blade Is Not Suitable for the Material
Check the blade code, blade length, material thickness, blade angle, cutting mode, and operating conditions to ensure they match the knife head and the material being cut.
2. Cutting Speed Is Too High
An excessively high XY speed, especially at 90° corners, sharp angles, tight curves, or sudden direction changes, can increase lateral force on the blade.
Recommended action: reduce speed and acceleration, configure corner deceleration, and test on a small sample.
3. The Vibrating Knife Frequency Is Not Suitable
The vibrating knife frequency must be matched to the XY speed, cutting depth, and material. If the speed is too high while the knife frequency is insufficient, the blade may drag instead of cutting effectively.
4. Blade or Holder Is Not Installed Correctly
- Check blade position and alignment.
- Check screw lock.
- Check the holder for play.
- Check for an off-center or vibrating blade.
5. The Material Is Not Secured
Weak vacuum can allow the material to move during cutting and increase lateral force on the blade. Check the vacuum pump, tubing, suction holes, sealing gasket, vacuum table, and any loss of suction.
6. Cutting Depth Is Too Large
If the blade cuts too deeply into the cutting table/felt, resistance increases and the blade wears faster. Set only enough depth to cut through the material.
7. The Vibrating Knife Head Has a Problem
Check the motor, mechanical transmission, couplings, linear guides, fasteners, and unusual noise or looseness. If the motor is running but the knife head is not oscillating correctly, stop the machine and inspect the system.
8. Troubleshooting Procedure
Conclusion
Repeated blade breakage does not necessarily mean poor blade quality. Check the blade, holder, knife head, parameters, speed, material, vacuum, and machine mechanism together.
Correct blade + correct parameters + stable material + properly adjusted knife head = lower risk of mechanical blade breakage.