Made from high-precision, stress-relieved seamless steel tubes
Wireline drill rods with heat-treated ends to strengthen threaded joints
Precision-machined, gauged and treated to mitigate galling
NQ Drill Rods for Mineral Exploration
Roschen NQ Drill Rods are made per the highest quality standard, and to exact specifications using advanced machining technology.
They are widely used all over the world for wireline drilling and mineral exploration.
Roschen wireline drill rods are manufactured from seamless steel tube by cold drawn. The material is XJY850/30CrMnSiA which meets the global standard.
Drill rods are made from quality heat treated materials which ensure superior strength, wear resistance and toughness in the most demanding applications
Rods and casing are manufactured under stringent industry standards, and are field tested under a variety of conditions.
All rods are designed to be compatible with the standard DCDMA.
Wireline drill rod specifications
| Size | Outer Diameter (mm) | Inner Diameter (mm) | Available Lengths |
| AQ | 44.7 | 37.3 | 1.5m/3m |
| BQ | 55.7 | 46.1 |
| NQ | 70 | 60.2 |
| HQ | 89 | 78 |
| PQ | 114.5 | 101.5 |
Best regards,
Phiger Leo
Direct Line: 0086-137-6419 5009
WeChat/WhatsApp:: +86-137-6419 5009
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ROBERT ROSCHEN@ LIMITED
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HEFEI ROSCHEN@ TOOL CO., LTD.
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SHANGHAI ROSCHEN@ INTERNATIONAL CO., LTD.
ROSCHEN@ GEOLOGICAL INSTRUMENTS CO., LTD.
EMAIL: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschendrill.com
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http://www.roschen.net
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