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High Strength Drill Rod Wear Resistance Long Life 4" Reverse Circulation

High Strength Drill Rod Wear Resistance Long Life 4" Reverse Circulation
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Basic Infomation
Place of Origin: Germany
Brand Name: ROSCHEN
Certification: ISO
Model Number: 3 1/2" 4" 4 1/2" 4" 4 1/2" 4" 4 1/2"
Payment & Shipping Terms
Packaging Details: wooden box
Supply Ability: 60 pcs/day
Product Description

High Strength Drill Rod Wear Resistance Long Life 4" Reverse Circulation
ROSCHEN offers a complete line of premium quality reverse circulation, drill rods, in sizes from
3 1/2" to 10 3/4", and with a number of thread connections. All Reverse Circulation rods are
manufactured using the most advanced technologies and specifically engineered to provide high
strength, excellent wear resistance, and long life.
RC, dual wall drill rods are manufactured with an outer drill rod and an inner tube located inside the rod.
When the drill rods are threaded together, the inner tubes seal together to provide a continuous route for cuttings to travel from the bit face to the surface for collection.
1. Plain end mid-body
2. 4140 QT tool joints
3. 3.65" sq. inch weld area
4. Inertia welded - increased strength due to full face surface welds.
5. Heat treated - weld zone to further optimize the mechanical and physical properties of the rod.

Please contact your ROSCHEN representative for additional details, and ordering assistance.

 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. 88.9mm101.7mm 114.3mm101.7mm 114.3mm 101.7mm 114.3mm 
 Outer Tube I.D. 81.8mm94.6mm 107.2mm 94.6mm 107.2mm 94.6mm 107.2mm 
 Outer Tube W.T. 5.3mm7.1mm 7.1mm 7.1mm 7.1mm 7.1mm 7.1mm 
 Inner Tube O.D. 38.1mm50.8mm63.5mm 50.8mm 63.5mm 50.8mm 63.5mm 
 Inner Tube I.D. 32.6mm45.3mm58mm45.3mm 58mm 45.3mm 58mm 
 Inner Tube W.T. 5.5mm5.5mm5.5mm 5.5mm 5.5mm 5.5mm 5.5mm 
 Spanner Flat 90mm 90mm90mm90mm 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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Contact Person : Bill, George, Michael
Tel : 13764195009
Fax : 86-021-54380177
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