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| Place of Origin | China |
| Brand Name | ROSCHEN |
| Certification | ISO |
| Model Number | 4 1/2 inch |
Reverse Circulation Drill Rods for RC Hammer Drilling 4 1/2 Inch Precision Drill Rod
Precision Drill Rod Introduction
The drill rod ,the shortened form of down the hole drill pipe, is a kind of outer flat drill rod. It is mainly used in rotary percussive drilling that contains gases and liquids. Its main components include pipe (rod) body and joint.
Our down the hole drill pipe is manufactured based on the API standards. And according to specific requirements, we also provide this kind of drill pipe in different Chinese and American specifications.
As for its advantages, it has features of big rigidity, good sealing capacity, flat outer structure, and low torque and resistance when rotating.
Precision Drill Rod MATERIAL SPECIFICATIONS
Roschen RC Rods use premium quality European hardened 4140 alloy steel tool joints with heavy duty seamless drill pipe and high tensile API 5CT rated wear resistant Inner Tubes. RC Rods using high specification austenitic Stainless Steel for down hole survey also available.
ROSCHEN Precision Drill Rod RANGE
• RC Rods and Inners
• API Rods
• RAB Rods
• Cubex Blast Rods
• Larger Rods
Precision Drill Rod TECHNICAL SPECIFICATIONS
All standard Lengths from 1m to 6m available
Reverse Circulation Drill Pipe :: Further Information
Tool Joint Spanner Flats
Rods available with or without spanner flats. Two or four flats as required.
Tool Joint Material
All Rods feature hardened European 4140 alloy steel tool joints.
RC Drill Pipe Thread Types
Remet, Metzke, RRE, Drillstar, LW, TS & other threads available.
Robot welding technology
Independently tested & certified to exceed welding standard AS3992
RC Drill Rods Length & Size
Standard lengths from 1 to 6m in 3",3 ½’’, 4’’, 4 ½’’, 75mm & 78mm diameters.
Reverse Circulation Drill Rods Sealing Options
RC Rods with standard O-ring set up or improved urethane seal options.
Other Rods - Blast Hole
We manufacture RAB, Cubex & API Rods as well as rods to your requirements.
| 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. |
Precision Drill Rod Pictures
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