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.

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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

 ROSCHEN GROUP

ROSCHEN Group has the world class advanced equipment like 12000 tons forging, metal processing plant, heat treatment workshop, numerical control plant, Advanced five-axis machining center, etc. professional technical and skilled team to ensure mining, mineral tools, equipment products quality stable and reliable.

ROSCHEN Group Limited is a manufactory with years of research and development for the mining, mineral tools, equipment. We are capability to produce high performance world class products and control excellent quality. Our main product includes tricone bit, diamond core bits, drill pipe, core barrel, TCI tricone bit, mill tooth tricone bit, RC hammer, DTH bit, etc.

ROSCHEN Manufactory PROCESS

ROSCHEN Sales Value Growing Up!

ROSCHEN'S MISSION

1. Strive to create and supply Best quality products for the industry that last longer than the average products.

2. Provide excellent service for our clients.  24 hour-7 days /week schedule to get our clients what they need – FAST.