Spiral Stabilizer Subs and Dig Out Subs for Reverse Circulation Drill Rods
For dramatically improved accuracy, stability and on-target drilling, choose Roschen spiral stabilizer subs.
Introduction
In developing the Spiral Stabilizer Sub Harlsan utilized cutting edge manufacturing technology to perfectly combine the role of Dig-out and Stabilizer Subs. The spiraling hard faced wear pads track an exact curve around the body of the sub. Results from extensive operational testing show the preciseness of this spiral enables stability and accuracy during drilling operations that isn’t obtainable with other subs.
As well as keeping deep Reverse Circulation holes on target the Harlsan Spiral Sub also significantly reduces drill string chatter.
Testimonial
While drilling 360m deep RC precollars we experienced problems with deviation of more than 5 degrees at the end of hole. The Roschen Spiral Sub dramatically improved accuracy, enabling us to keep the holes within 1-2 degrees.
This unique precision sub has enabled many of our customers to achieve drilling results that were otherwise unobtainable using conventional RC Dig-out or Stabilizer Subs. Contact Roschen today to find out more about the Spiral Sub and our full range of Dig Out Subs.
Spiral and Dig-out Subs
Thread Type & Diameter
Remet, Metzke, RRE and other threads in 4" & 4 ½" diameters
Sub Length
While 500mm or 1000mm lengths are standard call to discuss options to suit your needs.
Hard Facing
Precision manufacturing to your exact requirements in hard facing thickness & OD.
Spanner Flats
Spiral Subs with or without spanner flats made to your requirements & specifications.
Dig-out Subs
Full range of standard Remet, Metzke & RRE Dig-out Subs with customised options as well.
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