4" (101.6)mm RC Dual Wall Drill Rod With 4" Remet Thread For RC
Drilling
Reverse Circulation RC Drilling Rods is also called Double wall
drill pipe, double drill pipe or Dual Wall drill pipe. It consists
of two layers of inner and outer drill pipes (called inner pipe and
outer pipe). The inner and outer pipes constitute an annular gap,
which is a channel for pumping the flushing medium to the bottom of
the hole when hydraulic rock drilling and center sampling drilling.
The central hole of the inner tube is fixed as a whole by
discharging the flushing medium, and each double-walled drill pipe
is connected with the screw of the outer tube to ensure
transmission of torque and pressure. The inner tube is usually
connected by a plug-in method, which generally only serves as a
flushing medium. Therefore, a sealing device is required at the
plug-in place.
RC Drill rod Specification:
4" - 101.6mm RC dual wall drill rod
ROSCHEN Dual Wall RC Drill rod specification:
| Roschen Dual Wall RC Drill rod specification: |
| RC Pipe OD | Outer Tube | Inner Tube | Thread | Spanner Flat | Weight |
| outer diameter | inner diameter | wall thickness | outer diameter | inner diameter | wall thickness | 3M | 6M |
| 4'' | 101.6 mm | 94.6 mm | 7.1 mm | 50.8 mm | 45.3 mm | 5.5 mm | 4'' Remet / | 90 mm | 77 kgs | 155 kgs |
| 4'' Metzke / |
| 4'' Matrix |
| Roschen Dual Wall RC Drill rod specification: |
| RC Pipe OD | Outer Tube | Inner Tube | Thread | Spanner Flat | Weight |
| outer diameter | inner diameter | wall thickness | outer diameter | inner diameter | wall thickness | 3M | 6M |
| 3 1/2'' | 88.9 mm | 81.8 mm | 5.3 mm | 38.1 mm | 32.6 mm | 5.5 mm | 3 1/2'' Remet | 90 mm | 77 kgs | 125 kgs |
| 4'' | 101.6 mm | 94.6 mm | 7.1 mm | 50.8 mm | 45.3 mm | 5.5 mm | 4'' Remet | 90 mm | 77 kgs | 155 kgs |
| 4'' | 101.6 mm | 94.6 mm | 7.1 mm | 50.8 mm | 45.3 mm | 5.5 mm | 4'' Metzke | 90 mm | 77 kgs | 155 kgs |
| 4'' | 101.6 mm | 94.6 mm | 7.1 mm | 50.8 mm | 45.3 mm | 5.5 mm | 4'' Matrix | 90 mm | 77 kgs | 155 kgs |
| 4 1/2'' | 114.3 mm | 107.2 mm | 7.1 mm | 63.5 mm | 58 mm | 5.5 mm | 4 1/2'' Remet | 90 mm | 97 kgs | 172 kgs |
| 4 1/2'' | 114.3 mm | 107.2 mm | 7.1 mm | 63.5 mm | 58 mm | 5.5 mm | 4 1/2'' Metzke | 90 mm | 97 kgs | 172 kgs |
| 4 1/2'' | 114.3 mm | 107.2 mm | 7.1 mm | 63.5 mm | 58 mm | 5.5 mm | 4 1/2'' Matrix | 90 mm | 97 kgs | 172 kgs |
Roschen RC Drill rods Adavantages:
1. Heavy duty tool joints and superior manufacturing technique
promise to make RC drill pipe the industry standard.
2. Inner tubes slide into place and seal with double o-rings as the
threaded outer tubes are torqued together.
3. Abrasion-resistant alloy steel inner and outer tubes extend life
of the drill pipe
Working Principle:
Reverse circulation is achieved by blowing air down the annulus of
the rod, the differential pressure creating air lift of the water
and cuttings up the inner tube which is inside each rod. It reaches
the deflector box at the top of the drill string then moves through
a sample hose which is attached to the top of the cyclone.
The drill cuttings travel around the inside of the cyclone until
they fall through an opening at the bottom and are collected in a
sample bag. For any drill hole there will be a large number of
sample bags, each one marked to record the location and drilling
depth that the sample was obtained.
The collected series of sample bag cuttings are later taken for
analysis to determine the mineral composition of the drill hole.
The analysis results of each individual bag represents the mineral
composition at a particular sample point in the drill hole.
Geologists can then survey the drilled ground analysis and make
decisions about the value of the overall mineral deposit.
About us:
ROSCHEN Reverse Circulation drilling (RC), from size 3" to 12", is
a technique of drilling that uses dual wall drill rods that consist
of an outer drill rod with an inner tube. By using compressed air
to extract rock fragments sample,the samples travel through rods to
a sample splitter at surface, avoiding all contact between the
samples and the borehole wall that allows samples to be retrieved
with minimal contamination,which is mainly used in deep hole
exploration and mining grade control.
Transportation Way:
By Air,
By express
By Sea
Quality warranty:
Our products are made of high quality steel and all spares parts
are inspected strictly before shipping. We have quickly responses
for your complaint and suggestion.
Package:
Using ply-wooden cases and pallet for package to protect the
products and avoid the damagement during transportation. Also we
can customize package according to your special requests.
4.5" Remet Thread rc drill pipe,
SGS Reverse Circulation Drill Pipe,
4.5" Matrix Thread RC Drill Rod
