55SiMnMo Hexagonal Hollow Steel Drill Rod 108mm Shank for Deep Foundation Drilling - 400mm to 6400mm Length Range
55SiMnMo grade hexagonal hollow steel drill rods with 108mm shank designed specifically for deep foundation drilling applications. These integral drill rods deliver exceptional performance in demanding underground mining and construction environments.
Shank Sizes: 82.5mm × 22mm (3¼" × 7/8"), 108mm × 22mm (4¼" × 7/8"), 108mm × 25mm (4¼" × 1"), 159mm × 25mm (6¼" × 1")
Length Range: 400mm to 6400mm (1'4" - 21')
Head Diameters: 27mm to 40mm
Steel Grade: 95CrMo (equivalent to SANDBAR 20 or C253), 55SiMnMo
Chemical Composition:
- C: 0.92-1.03%
- Si: 0.25-0.45%
- Mn: 0.25-0.45%
- Cr: 0.80-1.20%
- Ni: 0.25% MAX
- Mo: 0.20-0.30%
- S,P: 0.025% MAX
- Cu: 0.30% MAX
- High fatigue strength and exceptional toughness
- Superior resistance to wear and permanent distortion
- Advanced industrial heat treatment process
- Uniform straightness eliminates need for straightening
- Reduces impact energy expense while improving drilling speed
- Compatible with bore hole diameters from 24mm to 44mm
Specifically engineered for hand-held drill machines in underground mining operations and small hole drilling applications. Compatible with air leg rock drills and hand-held rock drills for optimal performance in foundation drilling.
| Type | Rod Dia (mm) | Thread Type | Length (mm) |
|---|---|---|---|
| H19 | 19.2 | T16X6-M14 | 500-3000 |
| H19 | 19.2 | T16X6-M16 | 500-3000 |
| H19 | 19.2 | T16X6-M18 | 500-3000 |
| H22 | 22.2 | Taper connecting | 500-6000 |
| H22 | 22.2 | T19X6-T19 | 500-6000 |
| H22 | 22.2 | T19X6-T20 | 500-6000 |
| H25 | 25.35 | Taper connecting | 500-6000 |
| H25 | 25.35 | T22X6-T22 | 500-6000 |
Monthly Production Capacity: 20,000 pieces
Packaging: Wrapped with plastic knitting and bundled, or packed in wooden cases for secure transportation.
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