During conventional drilling and blasting operations, there is no control over how the material fractures and the amount of mixing that occurs during the blast. In some mines / quarries this mixing would result in unacceptable product quality, and increase the cost per ton of the mined product to unacceptable levels.
The ability to exactly control the cutting surface is what makes continuous surface mining into precision mining.
There are several inherent advantages in precision surface mining that can be considered.
The system has been developed uses a compressor, suction fans and self-purging filters to capture and clean the air. This system, while quite complex, has proven promising in the ability to provide a cleaner air environment