Reverse Circulation Drill Pipe / RC Drill Rods

• Standard: RoHS, CE, AISI, API
• Usage: Oil Mining, Coal Mining, Well Drilling, Ore Mining
• Material: Carbon Steel
• Transport Package: Wooden Box
• Specification: RC Drill Pipe
• Trademark: ROSCHEN
• Model NO.: 3 1/2 ~ 10 3/4 inch
• Origin: China
• HS Code: 84314320
• Production Capacity: 10000

Product Description

Reverse Circulation Drill Pipe 

 
Reverse Circulation Drill Pipe
 
The Reverse Circulation Drill Pipe incorporates a patented dual tube design. The Reverse Circulation Drill Pipe is used for mineral exploration and special construction applications.                                                               
                                                                
Reverse Circulation drilling is recognized as a fast and cost efficient alternative to diamond core drilling. With continuous advancements, deep holes and fast penetration rates are possible in almost all ground conditions, making Reverse Circulation the preferred drilling method for initial exploration, ore body development and other exploratory drilling.      
                                                       
Reverse Circulation drilling utilizes dual wall drill rods made up of an outer rod and an inner tube. The inner tube is designed to provide a continuous path for the drill cutting to pass from the bit face to the surface. Air or fluids are forced down the annulus between the drill rods and inner tube to the drilling tool (Reverse Circulation hammer, Tricone, or Fixed Cutter Bit). The cuttings return to the surface inside the inner tubes of the rods, where they are directed to a cyclone for separation and sample collection.
                                                                
Roschen offers a complete line of quality Reverse Circulation tooling including rods, subs, hammers, bits, and accessories. In addition, our sales and support team has the knowledge and experience necessary to provide troubleshooting and on site tooling solutions.          

Reverse circulation drill pipe
Outer tube           O/D in	Inner tube  in	Lerngth  m	Type of thread	Range of drill               in
3 1/2	1 1/2	3 ~ 6	Remet, Metzke, Matrix, others	4-1/8-4-3/4
4	2	3 ~ 6	Remet, Metzke, Matrix, others	4-3/4-5-1/2
4 1/2	2 & 2-1/2	3 ~ 6	Remet, Metzke, Matrix, others	5-1/8-6
6 5/8	3	3 ~ 6	Remet, Metzke, Matrix, others	7-7/8-15
10 3/4	5	3 ~ 6	Remet, Metzke, Matrix, others	Over 15
* Roschen offers reverse circulation drill string components in accordance with the requirements of the customer. Reverse circulation drill pipes available in different model, diameters and length.

 

REVERSE CIRCULATION DRILL ROD SPECIFICATIONS
Type  / Thread	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 WT	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 WT	5.5mm	5.5mm	5.5mm	5.5mm	5.5mm	5.5mm	5.5mm
Spanner Flat	90mm	90mm	90mm	90mm	90mm	90mm	90mm
Weight 3.0 m	77 kg.	77 kg.	97 kg.	77 kg.	97 kg.	77 kg.	97 kg.
Weight 6.0 m	125 kg.	155 kg.	172 kg.	155 kg.	172 kg.	155 kg.	172 kg.

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