ROSCHEN GROUP
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Reverse Air Drill Rods 4 1/2 inch OD 10 foot long faber thread for RC Drilling
REVERSE CIRCULATION
The mineral exploration industry utilizes reverse circulation drilling to economically collect representative samples when searching for ore bodies to develop. The reverse circulation method is used predominantly in tough, broken, and abrasive formations. This method offers several economic advantages over diamond coring in these environments as well.
Roschen Drilling Products is the recognized industry leader in RC Drilling Tools. Roschen RC tools are distinguished by their superior performance, reliability, and durability. We manufacture a complete line of reverse circulation drilling tools and support the range with a comprehensive array of associated purpose specific accessories including – Interchanges- Rock Bit Adaptors – Subs – Back Reamers – Hoisting/ Lowering – Drill Collars – Swivels – Fishing Tools and much more.
We address the underground RC drilling operations with our M3.25 RC Drill Rod. Surface mineral exploration applications utilize our M4 – 4.5” – 5.5” – 6” RC Drill Rod while additional larger diameter RC Drill Rods 7″ – 9 5/8″ – 10.75″ are used for bulk sampling, mine dewatering, and water resource applications.
| Sizes | 3", 3 1/2", 4", 4 1/2", 75mm and 78mm |
| Thread Types | Remet, Metzke, RRE, Westrod, LW, TS and other threads |
| 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. |