How rotary drilling rig works, what works? Currently rotary drilling rig works the drill pipe in the form of multi-use connection bucket dig and dig slag slag during drilling mud circulation mode to use more mud lubricant for such rigs, support, replacement and carry the role of drill slag. With the urban construction and environmental protection requirements become more stringent, the traditional rig face greater crisis. The rotary drilling rig power head forms and rotary drilling rig working principle is to use a short screw drill or auger bucket, using the powerful torque directly to the soil or gravel mining and other rotary drilling residue, then quickly made outside hole which Crawler Drilling Rig good home, without the need to support the mud dry construction can be achieved crawler drilling rig, even in the case of special needs Slurry Wall formation, the mud also only play supporting role in the drilling mud content is very low, This makes the pollution greatly reduced, thereby reducing the construction cost, but also improve the construction environment, high efficiency into the hole. This is the rotary drilling rig with good environmental properties. End surface design in the form of DTH DTH drill bit is an important part submersible drilling rig, the end face of the design in the form of high pressure DTH drill bit used, there are four: the end face of the convex type, planar end face, face concave and the end furrow center type. 1, the end face of the convex type: This drill two forms, single and double boss bosses face, which is mainly used for large diameter DTH Bits. Convex end surface drill DTH drilling in hard and hard to maintain when abrasive rock drilling higher rate, but the flatness of drilling is poor, does not apply to blasthole drilling require a higher flatness project. 2, the end face of the flat-type: This form relatively rugged drill for drilling hard and very hard rock Wada crawler drilling rig, blast hole drilling but also for less demanding flatness of hard rock and soft rock. 3, face concave: this shape drill head has a conical end face of the concave portion is formed in the drilling process, the drill slightly to keep the drill bit nucleation of performance, blast hole drilling has a good straight line degree, the effect is good drill row powder crawler drilling rig, drilling speed, is currently on the market use more DTH Bits. 4, the end face of the center furrow: This drill shape is evolved from the same type of ball tooth bit to the end face of the central portion of the drill bit has a deep concave central portion. For drilling during nucleation, ensure flatness when drilling deep boreholes, only applies to drilling in soft rock and hard rock. Wada crawler drilling rig, crawler drilling rig, Long industry machinery (Views) provided by Shandong Machinery Co., Ltd. Dragon. Machinery Co., Ltd. Shandong Long (www.longyejixie.com) is specialized in "low pressure submersible drilling rig, the air pressure down hole drill, high air pressure DTH drilling rig, crawler drill wells," the business, companies adhering to the "integrity management , the intentions of service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Guo Lei.