High-strength spiral drill rod specially designed for coal mine drilling. Provides excellent torque transmission, wear resistance, and long service life in underground mining operations.
Product specification:
Φ420-127×B95×1000mm
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High Efficiency Spiral Drill Rod with Square or Hex Connection For Geological Drilling
Craft: prestressed wire winding and welding on the basis of merits from German craft.
Material: high pressure seamless alloy pipe (rod body)
high wear-resistant T-shape strip steel (spiral)
medium carbon alloy steel which has been thermal refined in vacuum (connector)
Connection type between rods: Spring pin with U-shape or semi-ring retaining pin, which guarantees the max torque of the rod.
Matching: Portable or hand-held drilling machine.
Feature: light, quick connection, quick slagging, high efficiency
Application: Water and Gas exploration of coal seam or similar statum.
Rod with drainage hole and without are available
Specifications
No. | Specificaitons and Size (mm) | Torque (NM) | Connection Type |
Dia.(spiral+tube) | Tube Dia. | Length | Connector Size |
1 | 28 | 18 | 500-3000 | F12*48 | 150-200 | square shank |
2 | 30 | 18 | 500-3000 | F12*48 | 150-200 | square shank |
3 | 32 | 18 | 500-3000 | F12*48 | 150-200 | square shank |
4 | 38 | 21 | 500-3000 | F14*50/80 | 100-350 | square shank |
5 | 40 | 21-22 | 500-3000 | F14*50/80 | 100-350 | square shank |
6 | 42 | 22 | 500-3000 | F13*80 | 200-350 | square shank |
7 | 69 | 25-27 | 500-3000 | F18*60/85 | 250-350 | square shank |
8 | 69 | 25-27 | 500-3000 | B20*90 | 350-450 | hex shank |
9 | 75 | 32-42 | 500-3000 | F24*85 | 350-450 | square shank |
10 | 89 | 32-50 | 500-3000 | F26*45/90 | 350-450 | square shank |
11 | 98 | 73 | 500-3000 | B45*100 | 10000-12000 | hex shank |
12 | 113 | 63-73 | 500-3000 | B45*100 | 8000-12000 | hex shank |
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