CYTC76(HT71) Hydraulic drilling jumbo is the first choice for no sill pillar and high-sublevel caving technology. The jumbo can meet the specific drilling requirement with versatile positioning function. Reliable sliding table and rotary boom positioning system ensures the jumbo high precision drilling. Equipped with high power HC109RP drifter, and adopted advanced electro-hydraulic control technology with high mechanized operation make the jumbo is of high productivity. The jumbo drills parall