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Reverse Circulation Hammer
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| Place of Origin | CHINA |
| Brand Name | ROSCHEN |
| Certification | ISO |
| Model Number | 4 1/2 |
Matrix Reverse Circulation Dual Tube Drill Rod for Surface Golden Mining Drilling
ABOUT OUR PRODUCTS
Roschen is the industry's only integrated drilling services and products provider, combining 24-hour engineering excellence, global manufacturing facilities and the most experienced drilling services group in the business. Our customers rely on our unique ability to develop, field test, and deliver any combination of drilling consumables, capital equipment, and expertise direct to any corner of the world.
REVERSE CIRCULATION DRILLING
To accomplish drilling project objectives within budget, reverse circulation drilling offers a more cost effective drilling method for assaying chip samples and getting preliminary geological data prior to investing in detailed geological data from an exploration coring program. Reverse circulation is also faster than coring which means more holes drilled.
| 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. |
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