Reverse Circulation RC Drill Rods / 4.5" Size Down The Hole Hammer
RC Drill Rods Introduction
Our reverse circulation heavy duty drill pipes outclass similar products on the market in both value and quality. Roschen RC drill rods also provide the driller with excellent durability, thanks to the highest quality products which were used during the manufacturing process. Nearly 100% of our sales are direct to drilling contractors, whom openly specify our RC drilling pipes, because they last longer and drill deeper with the same air, offering the most value for the price. Additionally, our drill rods were designed specifically for RC drilling and are available in the reverse circulation drilling string configurations shown below.
RC Drill Rods Advantages:
1. Based on previous experience of ordinary hammer, combined with feature of reverse circulation hammer, optimized internal structure and ideal energy transfer,thus ensuring the series of hammers drilling with fast,smooth and continuous sampling.
2. The internal structure is very simple with components of high rigidity,thus ensuring long life and easy maintenance of the hammer.
3. The collection tube adopts an integrative design and can be replaced without disassembling the hammer with carburizing treatment, it has good abrasive resistance.
4. Equipment with bits designed with patent.Simply by replacing the drill bit, the same hammer can drill holes of different sizes ensuring that the sample is not contaminated.
5. In difficult conditions such as loose soil,hard rock and plenty of water exist, sampling can be done well.
Available Sizes (outside diameter)
REVERSE CIRCULATION DRILL ROD SPECIFICATIONS | |||||||
Thread Type | Remet | Remet | Remet | Metzke | Metzke | Matrix | Matrix |
Rod O.D. | 3 1/2" | 4" | 4 1/2" | 4" | 4 1/2" | 4" | 4 1/2" |
Outer Tube O.D. | 88.9mm | 101.7mm | 114.3mm | 101.7mm | 114.3mm | 101.7mm | 114.3mm |
Outer Tube I.D. | 81.8mm | 94.6mm | 107.2mm | 94.6mm | 107.2mm | 94.6mm | 107.2mm |
Outer Tube W.T. | 5.3mm | 7.1mm | 7.1mm | 7.1mm | 7.1mm | 7.1mm | 7.1mm |
Inner Tube O.D. | 38.1mm | 50.8mm | 63.5mm | 50.8mm | 63.5mm | 50.8mm | 63.5mm |
Inner Tube I.D. | 32.6mm | 45.3mm | 58mm | 45.3mm | 58mm | 45.3mm | 58mm |
Inner Tube W.T. | 5.5mm | 5.5mm | 5.5mm | 5.5mm | 5.5mm | 5.5mm | 5.5mm |
Spanner Flat | 90mm | 90mm | 90mm | 90mm | 90mm | 90mm | 90mm |
Weight 3.0m | 75kg. | 75kg. | 95kg. | 75kg. | 95kg. | 75kg. | 95kg. |
Weight 6.0m | 120kg. | 150kg. | 168kg. | 150kg. | 168kg. | 150kg. | 168kg. |
Please contact your Roschen representative for additional details, and ordering assistance.
RC Drill Rods Usage