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| Place of Origin | CHINA |
| Brand Name | ROSCHEN |
| Certification | ISO |
| Model Number | 4", 4.5", 5" |
Remet , Metzke Thread Reverse Circulation Drill Pipe For RE040 PR52 RC Hammer DTH Drill Pipe RC Drilling
DTH Drill Pipe Introduction
1. Pipe body : cold draw seamless pipe . so the pipe have the accurate size , good centralizer.
2. Pipe body's material is the same grade as .
3. Thread connector :Heat and Nitrogen treatment , so the pipe is more durable and easier to load and unload .
4. Friction welding .
Drill & Blast Rods and Subs
Tool Joint Spanner Flats
Rods available with or without spanner flats. 2 or 4 flats as required.
Tool Joint Material
All Rods feature hardened European 4140 alloy steel tool joints.
Thread Types
Cubex, API, Beco, IF and other threads available.
Robot welding technology
Independently tested & certified to exceed welding standard AS3992
Length & Size
Standard lengths from 1 to 12m in diameters up to 8 inch.
| Sizes | 3", 3 ½", 4", 4 ½", 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. |
Pictures
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