This performance video describes a permanent-magnet double blade quarry machine through its control chain: synchronous variable-frequency drive, permanent-magnet motor, programmable controller and touchscreen.
- Automatic cutting input
- The source says the user can set the host current for automatic high-speed cutting.
- Operator position
- Huada links the control arrangement with avoiding dangerous operating environments.
Development claim
The equipment is described as a new type developed by Huada's research team from experience with different quarries worldwide. The page does not identify those quarries or publish a development test.
Efficiency figure and its boundary
The archived article states that current cutting efficiency is 25%–30% higher than a traditional type. It does not name the reference machine, stone, blade set, cut geometry or measurement method. The range is therefore a manufacturer comparison, not a result proven by the video alone.
What a quarry comparison still needs
A useful field record should place the offered control and drive configuration beside one stone and cutting task, then save the host-current setting and measured result. Without that baseline, the video can introduce the machine's control concept but should not turn the published efficiency range into a universal promise.
