This exhibition introduction identifies the machine shown to the presenter's left as a double blade quarrying machine for low-bench granite work. The archived description then adds its motor and walking-control claims from the display.
- Displayed application
- Granite quarrying on a low bench.
- Named drive
- A permanent-magnet motor with automatically adjustable walking speed.
Efficiency figure in the presentation
The source states that the permanent-magnet motor is 25%–30% more efficient than similar products on the market. It does not identify those products, a test condition or an electrical measurement, so the range remains an exhibition claim.
Response to stone hardness
Walking speed is described as adjusting automatically according to stone hardness. The archive does not explain the sensing method, control range or machine specification shown at the exhibition.
What an exhibition video proves
The recording can preserve the displayed machine and spoken product positioning. It is not a quarry acceptance test, and no customer result is recorded. Before applying the low-bench concept, a buyer still needs the actual granite, bench geometry, blades, machine configuration and site result rather than relying on the exhibition comparison alone.
