CYTJ45(A)Features Of mining Hydraulic Tunneling Drill Rig: ? CYTJ45(A) hydraulic tunnelling drilling rig is suitably qualified for the drilling of hard rock mine whose section falls in the range of 12-35 square meters. ? Optional: 1. Increased type.It is specially designed for large tunnels,maximum section:7.6*7.4(W*H) 2. double rail type. It is specially designed for the rock bolt and is capable of drilling the 2.2-meter-deep rock bolt in the 4-meter-high tunnel. 3. Plateau type.it is specially designed for high altitude construction ? The firm flexible boom is capable of optical coverage of the section;360°rotation and self-leveling beam make drill positioning easy;it can also be used for the drilling of lateral cross-cut and rock bolt;