Reverse Circulation Drill pipe, Dual wall drill rods (RC drill pipes)

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2022年07月09日

Drill pipe RC double wall tube drill rods 114*6.3*6000 mm, complete, DR 115 thread

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Reverse Circulation Drill pipe, Dual wall drill rods (RC drill pipes)


A RC drill rod (also as dual-wall drill pipes) comprises an outer pipe tube and inner pipe tube with a sealing system (usually O Ring, V Ring) to keep the drill string pressurized. Air is blown between the walls of inner tube pipe and outer tube pipe down to the hammer while the air forces the cuttings back up through the center of the inner pipe. As RC drill rods are subjected to high wear in the drilling process, Roschen use only the high quality hardened alloy steel for the both inner and outer tube drill rods and tool joints.


Roschen RC Drill Rods Specifications
RC Rod sizeOuter Tube ODInner Tube ODSealing SystemEffective Length
mminchmminchO Ring, V Ring1.5m, 2m, 3m, 4.5m, 6m, 9m or 5', 6', 8',10', 20', 25', 30'
89-38893 1/2381 1/2
120-511024512
114-641144 1/2642 1/2
114-701144 1/2702 3/4
127-761275    763
127-661275662 5/8


Note:       

Any tool joint thread is available by request.

Any special specifications is available by request.




How to order of RC Drill Rods ? 


Effective Length + Out Tube O.D. + Inner Tube O.D. + Too Joints Connection Thread





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For more information, pls contact us:

 

 

Phiger Leo

Direct Line: 0086-137-6419 5009

WeChat: +86-137-6419 5009 


WhatsApp: +86-137-6419 5009      

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ROSCHEN@ INC.                                 

ROSCHEN@ GROUP LIMITED

ROBERT ROSCHEN@ LIMITED

ROSCHEN@ HOLDINGS LIMITED    

HEFEI ROSCHEN@ TOOL CO., LTD.

ROSCHEN@ GEOLOGICAL TOOL CO.,LTD.

SHANGHAI ROSCHEN@ INTERNATIONAL CO., LTD.

ROSCHEN@ GEOLOGICAL INSTRUMENTS CO., LTD.  

EMAIL: roschen@roschen.com ; roschen@roschen.net

Website: http://www.roschendrill.com

http://www.roschenmining.com

http://www.roschendrilling.com  

http://www.explorationcoredrilling.com   

http://www.roschen.net 

http://www.roschen.cn

http://www.roschen.com 

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