The question you actually have is not “does your AI work.” It is “have you stood inside a plant like mine.”

A 6,000 tonne-a-year sand-casting foundry built around a 45 kW sand mixer, plus pumps, conveyors, sieves, vibro motors, exhaust fans, shot blasts and cranes. Airborne sand, heat, impact loading and electromagnetic interference defeat conventional sensing through sensor failure, cabling and poor machine access.

Mapping load paths and drive-train mechanics against fault history showed that instrumenting under half the machines would head off around 80% of unplanned stoppages.

OUTCOME — THE CUSTOMER'S OWN FIGURES · A quarterly 83 hours of lost production — about 57,000 inserts — cut by roughly 90%, with some months running downtime-free.

Scoped as predictive maintenance, then reframed around recurring hot-saw failures once the investigation went deeper. Radiant heat from red-hot steel, heavy torsional load during cuts and repeated shock loading produced unpredictable shaft breakages and erratic blade life — conditions that destroy mounted sensors and drown their signal.

OUTCOME — THE CUSTOMER'S OWN FIGURES · Four significant hot-saw faults caught across a February-to-May window — and the pattern behind them exposed a structural weakness that led to a full frame redesign.

Walking-beam reheat furnaces, six roughing stands, six finishing mills, and EOT cranes with dual-motor hoists driving one drum through coupling and gearbox. Constant load variation, rapid start-stop duty and a moving platform make sensor mounting impractical.

OUTCOME — THE CUSTOMER'S OWN FIGURES · Within three days of installation, motor winding problems and gearbox anomalies were identified — including intermediate gearbox issues and motor stalling on the dual-drive hoists.

Hammer crushers, rod mills, an extensive conveyor network and agitators under high torsional load, in a heavily dust-laden environment with HV equipment in hard-to-reach positions and legacy assets running past design life. The machine mix runs from HV hammer crushers on fluid couplings to LV nodulizer agitators on VFDs.

This is the bridge: it began in the same sensing era — and it is now the site where the daily equipment intelligence is delivered live, across 50 machines, before every shift. The turn is described below.

Hot and cold mixers in tandem — the hot mixer running at 20 to 50 m/s circumferential speed and fluidising the blend to 130–140 °C, the water-cooled mixer bringing it back to 40 °C, both on VFD-controlled motors under thermal and torsional stress. Blade wear develops as subtle patterns, and VFD operation undermines conventional vibration analysis.

The commercial risk is downstream: bad compound reaching the extruders can seize them for two to three days.

OUTCOME — THE CUSTOMER'S OWN FIGURES · The system flags shifts in blade performance and mixing efficiency before batch quality is affected.