Concave Face Quality Carbide DTH Bit 115mm DHD340A Use For Medium
Hard Rock Formation
Product description
Down The Hole Bit, usually called DTH bit, is used with DTH hammers
for drilling holes through a wide range of rocks types.In conjunction with DTH hammers, DTH bits are designed with a
splined drive for rotating the bit in the ground.Drill bits are available in different sizes and different styles so
they can drill a wide range of hole sizes.
Our variety of DTH bits are manufactured using high quality
materials to provide you with a fine balance between penetration
capability and bit life.
We offer a comprehensive range of standard and made to order drill
bits on an extensive selection of shanks with a wide variety of
head designs to suit every project.
DHD340A 115mm 4 1/2'' DTH Drill Bit overview
| Bit Diameter | 115mm 4 1/2'' |
| No.* Button Dia. mm | Gauge Buttons 7*14mm |
| Front Buttons 6*14mm |
| Weight (kg) | 8.1 |
DHD340A series DTH bit overview
| Diameter | Button Configure Dia*qty. | Bit design | Weight (kg) |
| Metric | Inch | Guage button | Front button |
| 115mm | 4 1/2'' | 14mm*7 | 14mm*2+14mm*4 | Convex face | 8.1 |
| 115mm | 4 1/2'' | 16mm*7 | 14mm*2+14mm*4 | Convex face | 8.1 |
| 115mm | 4 1/2'' | 14mm*8 | 14mm*2+14mm*4 | Convex face | 8.1 |
| 125mm | 4 15/16'' | 14mm*8 | 13mm*3+14mm*4 | Convex face | 8.7 |
| 127mm | 5'' | 14mm*8 | 13mm*7 | Flat face | 8.8 |
| 130mm | 5 1/8'' | 14mm*8 | 14mm*7 | Flat face | 9 |
Product Advantages
1. 1.The surface of the parts is treated with anti-fatigue
strengthening treatment, which has a longer working life
2.Optimize the impact contact surface, air chamber and impact
frequency to achieve faster perforation efficiency
3.The patented optimized matching design of drill bit and impactor
maximizes the transmission efficiency of impact energy
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.
