How to choose the DTH drill rig quicken work, to do all the preparation work before, even the best have to choose a good mix of mechanical drilling rig manufacturer, or can not achieve the desired effect. DTH drill rig in the choice when you need to note the following: First: hard rock drilling larger than reactive. Each pillar drill teeth and are under greater amount of load. Request bit body and columns teeth having high strength. Second: When drilling in Drillability good soft rock drilling faster   relatively large slag best selection of three or four vane airfoil III: Comparative development drilling in the joints broken in When  to reduce skew. The best choice for a good middle-oriented depressed or protruding type drill. Fourth: When rocks containing clay middle slag hole drilling   best choice is often blocked by the side slagging drill. Fifth: When drilling in relatively good toughness  best selection of wedge-shaped rock drill teeth. What are the main characteristics of well drilling rig because a growing number of large-scale projects, a variety of rigs drilling rig manufacturers are frequently used Hebei rig with different engineering requirements, blood replacement quickly, but also with the rapidly changing characteristics. Well drilling rig works carried out by pumping reverse circulation type, in the role of atmospheric pressure Xinjiang rig manufacturers, water well drilling rig circulating liquid by sedimentation through ring back to the ditch along the bottom of the wellbore flow gap, driven rotary drill drilling mud pump suction established by the debris of mud suction vacuum cavity drill, circular fluid after precipitation continue to flow into the well bore. Well drilling rig operations and maintenance are very convenient northeast rig manufacturers, spare parts and long service life, the production cost is relatively low. Drill new structure, to mention lead, breakout unique tools to facilitate the demolition drill pipe connection and fast. Shanxi rig manufacturers, rig manufacturers, industry machinery provided by Long Long Machinery Co., Ltd. Shandong. Industry Machinery Co., Ltd. Shandong Long (www.longyejixie.com) strong, credible, in Tai'an, Shandong Engineering Machinery Parts industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead industry machinery and you work long into the brilliant, for a better future!