• Mill gear

Figure1: OrientationFigure1: OrientationThis Automated Ultrasonic Testing method is excellent to determine mill shell thickness. It’s rapid scan features, allows a mill shell to be scan faster than ever. All scanning is done from the outside of the mill shell. No more “spot to spot” thickness measurements. The report will show in 3D image the thickness of the shell. Also, an Excel Spreadsheet will be in the report for future trending.

Inspection essential parameters were set to be able to cover a larger area in the shortest possible time. A modular array of probes was built to cover approximately 10inches axially, with 1inch between each probe. The probes are moved in the circumferential axis and a reading is recorded every inch. This results in a grid resolution of approximately 1in by 1in.


Mill Shell Thickness Mapping