System Composition

The expansion-type hydraulic/mechanical cavity making, pressure relief, and permeability enhancement system is mainly composed of crawler-type fully hydraulic tunnel drilling rigs, clean water pump stations, extractors for solid-liquid, as well as matching high-pressure water injectors, high-pressure drill pipes, drill bits, high-pressure hydraulic cutting punching machines, or Deployable two wing mechanical water jet for mining.

Dilling Tools

1. Deployable two wing mechanical water jet: after the mechanical knife arm is unfolded, the high-pressure water jet from the nozzles on both sides starts to punch holes and create cavities by turning the drill bit forward and backward;

2. Ultra high-pressure hydraulic slit cutter: The slit cutter changes from the front end of the drill bit to the single-sided nozzle for water output, and starts ultra-high pressure slotting when turning the drill bit forward and backward;

3. High pressure hydraulic cutting punching machine: The punching machine changes from the water outlet at the front end of the drill bit to the water outlet from the nozzles on both sides of the drill bit, and starts punching and creating cavities by turning the drill bit forward and backward.