Critical burst speed: 18335 RPM. Crank it up to 23000 RPM — will the cutting disc blow apart?

The test sample is a 125 mm cutting disc.

Visual inspection is performed to reject samples with nicks, cracks, chipped edges, moisture-induced deformation.

Inspect the test machine spindle, flange plates and fixtures.

Flange dimensions shall match the cutting disc.

Tightening torque follows standard requirements to prevent slipping during clamping.

Reference critical burst value for this sample: 18335 RPM, linear speed 80 m/s.

We raise the test-machine speed to 23000 RPM, exceeding the critical burst threshold.

After continuous high-speed operation, open the protective chamber.

As can be observed:

This 125 mm cutting disc remains completely intact.

No cracking, no chipping, no burst failure.

Overall performance is stable.