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DTH Bits-QL60-165 for mining
- Code No. : QL60-165
- Diameter : 165mm
- Air Holes No. : 3
- Bit Face Type: Flat face
A QL60 drill bit is a DTH (Down-The-Hole) hammer bit used for drilling large-diameter holes in hard rock formations. The "QL60" refers to the specific type of QL series DTH hammer it is designed to work with, which typically has a 6-inch shank. These bits are characterized by tungsten carbide buttons that break up rock through high-impact forces from the hammer, combined with rotation from the drill string.
| Face Shape | Head Diameter (mm) |
Shank Length | Spline | holes Qty | Button qty.pcs * Dia.(mm) | Weight (Kg) |
||
| Button Type (Optional) |
Gauge Buttons | Front buttons | ||||||
| concave face | 154 | 253 | 12 | 2 | Dome | 8*Φ18 | 4*Φ16+4*Φ15 | 22.5 |
| Flat Face | 165 | 253 | 12 | 2 | Dome | 8*Φ18 | 8*Φ16 | 23 |
| concave face | 171 | 253 | 12 | 2 | Dome | 8*Φ18 | 6*Ø16+4*Ø15 | 24.4 |
| concave face | 178 | 253 | 12 | 2 | Dome | 8*Φ18 | 6*Φ16+5*Φ15 | 25.3 |
| concave face | 190 | 253 | 12 | 3 | Dome | 9*Φ18 | 6*Φ16+5*Ø15 | 26.5 |
| concave face | 203 | 253 | 12 | 2 | Dome | 10*Φ18 | 8*Ø16+6*Ø15 | 29.7 |
Key features and functions
- Purpose: Used for applications like mining, quarrying, water well drilling, and general construction where holes need to be drilled in hard rock.
- Working principle: It functions with a DTH hammer, which is located directly behind the bit. The hammer delivers rapid, powerful impacts to the bit, while the drill string rotates it.
- Construction: Typically made from high-quality carbon steel and features durable tungsten carbide buttons for wear resistance.
- Shank type: The "QL60" shank signifies a 6-inch connection, and the bit is engineered to fit this specific hammer.
- Hole size: The resulting hole diameter can vary, but QL60 bits are often used for drilling holes in the 155mm to 190mm (approximately 6 to 7.5 inches) range, depending on the specific bit model.
- Customization: QL60 bits are available with different face designs (flat, concave, convex) and button configurations to optimize performance in various rock types and conditions.
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