Changsha Sollroc Engineering Equipments Co., Ltd
FOCUS IN MANUFACTURING OF HIGH QUALITY DTH AND RC DRILLING TOOLS.
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QL60 Premium Quality Nickel-Alloy Steel 7''-178mm DTH Bit For Water Well Drilling
Product description
QL60 No Footvalve 178mm 7'' DTH Drill Bit overview
| Bit Diameter | 178mm 7'' |
| No.* Button Dia. mm | Gauge Buttons 8*18mm |
| Front Buttons 10*16mm | |
| Weight (kg) | 24.6 |
QL60 No Footvalve series DTH bit overview
| Diameter | Button Configure Dia*qty. | Bit design | Weight (kg) | ||
| Metric | Inch | Guage button | Front button | ||
| 165mm | 6 1/2'' | 18mm*8 | 16mm*8 | Flat face | 23.8 |
| 165mm | 6 1/2'' | 18mm*8 | 16mm*4+16mm*4 | Convex face | 23.6 |
| 165mm | 6 1/2'' | 18mm*8 | 16mm*4+15mm*4 | Concave face | 23.3 |
| 171mm | 6 3/4'' | 18mm*8 | 16mm*6+16mm*4 | Concave face | 24 |
| 178mm | 7'' | 18mm*8 | 16mm*6+16mm*4 | Concave face | 24.6 |
| 190mm | 7 1/2'' | 18mm*10 | 16mm*8+16mm*5 | Concave face | 26.1 |
Product Advantages
1. 1.Made from premium quality nickel-alloy steel for increased durability and wear characteristics, and tungsten carbide as same grade as internationally well-known brand.
Face shape Features
Concave Face
1. Capable of drilling straighter holes in medium to hard rock which is broken or less consolidated
2. Offers high penetration rate in the above stated rock conditions
3. Has excellent air flushing characteristics
4. Predominant face style for majority of drilling conditions
Flat Face
1. Have a superior performance in hard, abrasive and broken rock conditions
2. They however have a slower penetration rate in comparison to a concave face bit
Convex Face
1. This face has been designed to offer high penetration rate in soft rock such as shale, limestone etc
2. They are recognized for having excellent capability for drilling into moderately consolidated rock conditions
Structure picture
Product application
At present, DTH drilling tool is widely used in underground mining, quarries, hydraulic and Hydro-Power Engineering, water well drilling, Mineral exploration, anchoring hole drilling, geothermal engineering, Subway excavation, another civil engineering.
DTH is one of the most efficient ways of drilling rock, using a rapid hammer action to break the rock into sizeable chips which are then evacuated from the bore hole by the air exhausted from the DTH Hammer. The technique provides fast drilling of accurately aligned, straight and clean holes in most ground conditions.
Company informaiton
1. Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 years.
2. We have advanced technology and equipment.
3. Our technician has more than 13 year's professional working experience.