QL60 No Footvalve Type Black Color 171mm 6 3/4'' DTH Bit For
Blasting Drilling
Product description
DTH hammers and bits are widely used in open-pit mines, quarries
and construction projects to maximize efficiency for customers and
reduce drilling costs. In underground mining engineering,
high-performance and efficient energy transfer can maximize
drilling accuracy and increase customer productivity. Our
down-the-hole hammer and bit can optimize the impact energy loss to
the rock to the minimum, and are easy to take, efficient and fast.
At the same time, they also incorporate advanced material
technology and sophisticated design, which makes our down-the-hole
drilling tools easy to operate and long life, bringing users a high
productivity, low energy consumption, and a trustworthy user
experience.
QL60 No Footvalve 171mm 6 3/4'' DTH Drill Bit overview
| Bit Diameter | 171mm 6 3/4'' |
| No.* Button Dia. mm | Gauge Buttons 8*18mm |
| Front Buttons 10*16mm |
| Weight (kg) | 24 |
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.The overall structure design is concise to minimize the
probability of failure
2.Short overall length, light weight and good safety
3.The patented optimized matching design of the drill bit and the
impactor maximizes the transmission efficiency of impact energy
4.The surface of the parts is treated with anti-fatigue
strengthening treatment, which has a longer working life
5.Optimize impact contact surface, air chamber and impact frequency
to achieve faster perforation efficiency
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.
