This reverse circulation mechanism ensures that samples travel directly from the bit face to the surface without contacting the walls of the borehole, significantly reducing contamination from previously drilled zones or wall sloughing. As a result, the stratigraphic integrity of the sample sequence is preserved, providing geologists with a reliable vertical profile of subsurface materials.
The RC drill rig itself is typically mounted on a mobile platform—such as a truck or track-mounted carrier—for mobility across rugged terrain. It includes a robust rotary head capable of handling high torque and rotation speeds, a dedicated compressor unit supplying high-volume air, and a sophisticated hammer mechanism (usually a down-the-hole or DTH hammer) that delivers percussive force to fracture hard rock formations efficiently.
One of the key advantages of dual-wall RC drilling over other methods like open-hole rotary drilling or wireline coring is its speed and cost-effectiveness in hard rock environments. While it does not produce a continuous core like diamond drilling, it offers faster penetration rates and lower operational costs while still delivering representative samples suitable for assaying and lithological logging.
Overall, the Dual-Wall Pipe Reverse Circulation Drill Rig represents a critical tool in modern exploration programs, combining engineering precision with practical efficiency to support data-driven decisions in resource evaluation and development.
This is just a part of the overseas clients who came to our company to negotiate cooperation, sign contracts and take photos.
We welcome more overseas clients to come to our company for negotiation and cooperation.
Product Description
|
Drilling capacity
|
Drilling depth(m)
|
500
|
|
The hole diameter(mm)
|
140-400
|
|
Drill pipe diameter(mm)
|
76/89/102/114
|
|
Drill pipe length(m)
|
1.5/2/3
|
|
Axial pressure(kN)
|
100
|
|
Drive head
|
Rotation torque(N.m)
|
8000-12000
|
|
Rotation speed(rpm)
|
40-160
|
|
Stroke(m)
|
1.7-3.5
|
|
Rig lifting force(kN)
|
300
|
|
Feeding capacity(kN)
|
150
|
|
Rapid rise speed(m/min)
|
20
|
|
Fast feeding speed(m/min)
|
40
|
|
Power Unit
|
Rated power/speed(kW/rpm)
|
132/2400
|
|
Tool winch capacity
|
Lifting force(kN)
|
20
|
|
Air compressor
|
Air pressure(MPA)
|
1.7-3.5
|
|
Air consumption(m³/min)
|
17-42
|
|
Equipped with hammer(Reverse circulation)
|
Medium and high pressure series
|
|
Crawler chassis
|
Walking speed(km/h)
|
2.5
|
|
Climbing angle(°)
|
30
|
|
Dimension
|
Transport(mm)
|
6450*2100*2700
|
|
Working(mm)
|
4500*4000*7000
|
|
Weight
|
Weight(t)
|
12
|
|
Company Profile
1.What can you buy from us?
DTH drilling rig,Integrated DTH DTH drilling rig ,core drilling rig,highway pile driver,solar pile driver ,anchor pile driver,rotary drill rig ,Top Hammer drill rig,Underground jumbo drill rig ,DTH hammer,drill rod,screw air compressor,water well drilling rig,truck mounted water well drilling rig,screw air compressor,piston air compressor,pneumatic rock drill ,drill bit,tricone bit ,spare parts.
2.How can I make payment?
A:You can pay by credit card, TT, Western Union, LC etc.
3.How is the shipment? How long dose it take?
A: For large quantity or heavy products, we ship by sea shipping or land shipping. Shipping efficiency depends on country and city you want to ship to. For small and delicate products, we ship by DHL, UPS, Fedex or TNT. You can also appoint shipping method you like before we ship.
4.How is your quality control? A: We have our own experienced QC. There will be strict inspection and testing for every order before shipping out.
Your message must be between 20-3,000 characters!
