① No gunpowder
=> No need for gunpowder manager => No vibration spray dust => Minimal civil complaint
② No chemical grouting
=> No waiting time for curing
③ Minimize friction by adjusting blocks
=> The maximized technique of calcification => More than 100㎥ of break a stone a day
A technique that minimizes block size and minimizes friction to maximize the impact force Expanding the ceiling by 1.5*1.5 or more makes it more efficient and economical!
No blast clearance, no gunpowder manager, no more than 12 hours of waiting to be cured Rock Crushing Machine By Oil Jack Technology
=> Conventional mechanical halo technique is very inefficient because of friction between wedges and blocks.