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  • Henan YK Prospecting Machinery Co., Ltd

  •  [Henan,China]
  • Business Type:Distributor/Wholesaler , Manufacturer , Retailer , Trade Company , Service
  • Main Markets: Africa , Asia , East Europe , Middle East , Worldwide , Europe , Americas
  • Exporter:61% - 70%
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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.

Yikyui 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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