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| Place of Origin | China |
| Brand Name | ROSCHEN |
| Certification | ISO |
| Model Number | 4 1/2 inch |
Reverse Circulation Drill Rods and Pipe
Reverse Circulation Drill Rods and Pipe 4 1/2 inch Remet, Metzke thread
Remet, Metzke European hardened 4140 alloy steel tool joints with heavy duty seamless drill pipe
Reverse Circulation Drill Rods and drill pipe consist of European hardened 4140 alloy steel tool joints
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.
RC Rods & Inner Tubes
Makes other RC rods look downright soft. Outstanding thread strength and wear life comes standard.
Air Core Bits
The dynamo of Air Core Drilling. Harlsan Air Core and Vacuum Bits lift the metres you drill every day.
RC Subs
Stand out quality means our subs always fit. State of the art machining delivers precision cut threads every time.
Blow Downs
If you’re not drilling you’re not earning. Harlsan Hydraulic Blow Downs are the answer to drill string blockages
Inlet Swivels
Reduce down time with the Inlet Swivel designed & proven to consistently drill longer between reseals.
INLOK System
Install and remove Inner Tubes with the system that increases safety, production and cuts maintenance.
| 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. |
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For more information, please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net
http://www.roschen.cn ; http://www.roschendrill.com
http://www.roschenmining.com ; http://www.roschendrilling.com
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