TXJ1600A Core Drilling Rig Usage TXJ1600A core drilling rig is mainly used for exploration borehole in mining, coalfield and petroleum field, which the drilling angles are vertical and inclined within 45 degree, also used for water source and other similar engineering borehole. Structure features 1.Mechanical transmission, simple structure 2.Adopting lots of technical innovations for easy maintenance and operation 3.Equipped with water brake, which can control descending speed of drilling tools, reduce wear-out of drum, brake belt and other parts, eliminate the impact force of hoisting system and ensure drilling safely. Main Technical Parameters Drilling depth 　　　　　Φ60mm drill pipe（m） 1200 　　　　　Φ50mm drill pipe（m） 1600 Opening bore dia. (mm) Φ146 Drilling angle 90°-45° Rotating speed of spindle (r/min) 74 148.5 297 Hoisting speed of winch (single rope) (m/s) 0.8 1.6 3.21 Hoisting Load of winch (kN) 60 Diameter of wire rope (mm) Φ22 Rope capacity of reel (m) 180 Feeding type Active drilling Pieces of V-belt(C-shaped belt) (mm) 5