When you aim to buy water well drilling rig, there are also another choices for you, which is reverse circulation rig and normal circulation drilling rig. The most frequent question appears in people’s mind might be, are there any differences between a reverse drill machine and a normal circulation drilling machine? The answer is, yes, there are. And they are two quite different kinds of drilling rig, also, they have some things in common. Both of them can perform excellent in severe terrains and weather conditions, they are multifunctional drilling equipment, versatile in drilling water wells, geological exploration, geothermal exploration, etc.. Lots of people are confused about choosing a reverse drill machine or a normal circulation drilling machine, this article aims to explain the difference between reverse circulation drilling machine and normal circulation drilling rig. The following picture shows three types of reverse circulation drilling machine’s operational principle.
There are also another ways for you to learn more information about rc drilling machine and normal circulation drilling machine, which is, you can directly contact the Runbay reverse circulation drilling rig manufacturer, visit our official website runbaydrillingrig.com, or you can send an email inquiry to us at sales@runbay-machinery.com, or telephone us at +8618239933006. Our hot sale products include:Water Well Drilling Rig, Deep Water Well Drilling Rigs, Portable Water Well Drilling Rigs, Truck Mounted Well Drilling Rig. Our 24 hours online customer service will answer every question from you about rc drilling machine with patience professionally. And the videos of on-site working which sent by our customers of rcd drilling machine are available on our youtube, check the videos here, https://www.youtube.com/watch?v=Axti-q6IFvQ.
Similarities and dissimilarities between reverse circulation rig and normal circulation drilling machine
Reverse drill machine composed of top pulley block, column, diagonal brace, chassis, moving mechanism, rotary mechanism, winch mechanism, operating room, hydraulic system, electrical system and towing machinery, used to complete the power unit, takeoffs and landings of steel cages and grouting ducts, etc..
Both the reverse circulation drilling machine and the normal circulation drilling rig protect the drilling well wall and the slag draining through the circulation of drilling mud, that is, through the circulation of drilling mud, the boring mud in the drilling holes are brought out. Rc drilling machine and normal circulation drilling rig have basically the same drilling technology and applicable formation. The only one different point between rc drill rig and normal circulation drilling rig lies in the circulation way they deal with the boring mud.
This is a picture of the mud circulation ways of reverse circulation drilling machine and the normal circulation drilling equipment. It is clearly shown that the biggest different point between the drill machine with reverse function and the normal circulation drilling machine. On the left side of the picture, it is the technical principle diagram of the normal circulation drilling equipment, we can clearly see that the drilling mud is flow from the mud pump, controlled by the water faucet device then flow through the drill pipe to the drilling hole, when the drilling mud’s task is done, it flows back through the drilling bit to the settling tank where its boring mud get precipitated, the boring mud is brought out of the drilling well at the same time. Well on the right side, the working principle of the reverse circulation drilling machine is quite contrary to the normal circulation drilling equipment, which is, the drilling mud driven by a mud pump or an air compressor which used to lubricate the drilling bit is firstly flow from the mouth of the well directly, when its work has done, it flows back to the gravel tank through the drill pipe upright, meanwhile, the boring mud is brought out by an air compressor or a mud pump, in the settling tank where the mixed drilling mud get deposited, then it flows into the drilling well through the well head again.
They look like the same, but actually, they are very different.
The drilling mud of the normal circulation drilling machine is pumped from the mud pit into the drill pipe by the mud pump , is continuously conveyed to the drilling well through the drill pipe , and then naturally discharged from the well head , and the drilling mud is taken out to the ground. Because of the natural deslagging circulation of the drilling mud, the ability of circulation and deslagging is weaker, that only a portion of the drilling slag can be discharged, and the larger particles can not be eliminated. There are more residue in the drilling well, which affects the drilling speed of the normal circulation drilling machine, and the wear of the drilling tools is relatively bigger.
The circulation of the drilling mud of the reverse drill machine is just the opposite, and its drilling mud is transported from the well head which is outside the drill pipe into the drilling well by the mud pump or air compressor. With air compressors or mud pumps, the boring mud is drawn from the middle of the drill pipe, so the circulation capacity and slag discharge capacity of the drill machine with reverse function are relatively stronger. Not only is the slagging clean, but also the larger particle size ones can be drained out, so the reverse circulation drilling rig is more suitable for drilling holes in the stratum with larger particle size such as pebbles.
In comparison, the slag removal capacity of the normal circulation drilling rig is relatively weak, but the process is relatively simple and easy to operate, and the price of the normal circulating drilling rig is relatively cheap. The reverse circulation drilling rig has strong slag discharging ability, but the drill process is rather complicated. Improper operation is prone to cause hole collapsed and drill buried and the price of reverse circulation drilling rig is relatively high. You only need one mud pump for a normal circulation drilling machine, but two mud pumps, or a mud pump and an air compressor are needed for a rcd drilling machine.
All in all, a rcd drilling machine is much more better and more cost-effective than a normal circulation drilling machine. Spending more money for once, profiting more for all time.
If you do not know which one to choose, just contacting us, one of the most reliable and professional reverse circulation drilling rig manufacturers, Runbay Machinery, China, will provide you a perfect drill match plan based on your requirement. The latest reverse circulation drilling rig series is available on our official website, runbaydrillingrig.com, or you can consult our 24 hours online customer service at sales@runbay-machinery.com, or telephone us at +8618239933006. Buying a reverse forward drill machine will be an easy thing like buying a toothbrush.
Advantages of reverse circulation rig
First and foremost, the reverse drill machine adopts engineering track, hydraulic walking chassis, easy to move, more suitable for plain, plateau, hills and other terrains. The Chassis equipped with the reverse circulation rig has 4 legs, weak vibration and strong stability. Secondly, the reverse drill machine is a multifunctional drilling equipment, the key components all adopt cost-effective products, the drill system is equipped with pressure protection system and warning device. What’s more, The handle and instrument of all the actuators of the reverse circulation drilling rig can be operated on the operating table, convenient and reliable control can be achieved. Last but not least, the reverse drill machine adopts a unique drill frame, which has large drilling range, large torsion resistance, simple structure, convenient maintenance, easy to move, convenient operation of the orifice, and can be used to drill the zenithal angle of holes.
As one of the most professional reverse circulation drilling rig manufacturers, we developed rc drill rig series which can perfectly suit for your various needs and requirements.
RBGF-200 reverse circulation drilling rig is capable for drilling more than 250 meters deep hole, with 452-2000mm drilling diameter, 11r/min spindle speed, (5.5-7.5)*2kw spindle power, 12000N.m spindle torque and 15T lifting force of the winch. Versatile in low and middle hardness formation of high-speed, high-speed rail way, bridges, buildings, pylons foundation work, also can be used in the filed drilling.
RBGF-400 reverse circulation drilling machine has the features of big torque, large impeller throughput, large flow of water pump, 500mm drilling diameter. Mainly used for high speed ways, high speed rail ways, building pile foundation constructions in more complicated terrains. More outstanding performance in granite, basalt, limestone, sedimentary rock, gravel and pebble bed layers.
RBGF-500 reverse circulation rig has won the national patent, equipped with superior-subordinate water pump, the subordinate water pump delves into the water and conveyed power through hydraulic pumps or electric motor. The drilling depth can be 500 meters. It is the most efficient drill machine with reverse function in at home, meanwhile, it has the deepest drilling depth.
The reverse circulation drilling rig has obvious advantages in the construction of complex strata namely pebbles, and in the drilling speed of rock-socketed bored piles. Especially in some hilly and mountainous areas, the advantages are more obvious.
If you want to learn more about our reverse drill machine or more knowledge about reverse circulation drilling machine, you can visit our official website runbaydrillingrig.com, and more types of our rc drilling machine are available. You can also watch the reverse circulation drilling machine’s excellent performance on our youtube official website https://www.youtube.com/watch?v=Axti-q6IFvQ. We have a professional customer service team ready for answering every questions from you at any time. You can send an email inquiry to us at sales@runbay-machinery.com, or telephone us at +8618239933006. We have the best reverse circulation drilling rig for sale, and we will provide every customer the best and professional service, a perfect after-sale service and a 24 hours online technical support.