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DTH hammer bits for rock drilling
Brief Introduction
DTH (Down The Hole) bits are widely used for open-pit mining, quarry, hydropower engineering, well drilling and excavation side column support, etc.
We can supply DTH bits from 85mm to 305mm. The main products are:Similar or equal DHD, COP and SD series hammers, our DTH bits range from 85mm, 90mm, 95mm, 100mm, 105mm, 110mm, 115mm 120mm, 127mm, 133mm, 140mm, 146mm, 152mm, 165mm, 175mm, 190mm, 203mm, 216mm 254mm, 305mm, etc.
Phone:+86-371-55631256 E-mail:admin@hnzwky.com
Description:
Series
1 Low pressure bit
2 Medium Pressure bit
3 High Pressure bit
4 Reverse Circulation bit
Advantage
1. Suitable for medium to medium hard formation of high Crushing Resistance (hard shale,sands,etc.)
2. Bit bearing is non-sealed roller bearing.
3. Hardfacing is applied on the shirttail, and carbide inserts for gage protection are pressed into the head OD.
4. Cone gage surface is reinforce with carbide compacts.
5. Partial top spoon shaped inner row of teeth, the wedge outer row of teeth is not equidistant teeth, in the back cone tooth and the outer row of teeth between adds a row of trimming gear.
6. High compressive strength, hard and abrasive high formation, such as limestone, dolomite, sandstone, chert and other.
7. Bit size and buttons can be customized.
Parameter
|
Hammer type |
Size of the bit |
Face design |
API thread |
Outside diameter |
Wrench flat |
Weight |
Work pressure |
|
G24(2") |
76/80mm |
Flat/Concave/Convex |
F42×10×1.5 |
70mm |
55mm |
20kg |
6-25 bar |
|
G3.5(3") |
90-100mm |
Flat/Concave/Convex |
2 3/8" REG |
80mm |
65mm |
25kg |
6-25 bar |
|
G44(4") |
105-130mm |
Flat/Concave/Convex |
2 3/8" REG |
99mm |
74mm |
40kg |
6-25 bar |
|
G54(5") |
134-152mm |
Flat/Concave/Convex |
2 3/8" REG 3 1/2" REG |
124mm |
7495mm |
75kg |
6-25 bar |
|
G64(6") |
152-254mm |
Flat/Concave/Convex |
3 1/2" REG |
137mm |
95mm |
98kg |
6-25 bar |
|
G84(8") |
203-305mm |
Flat/Concave/Convex |
4 1/2" REG |
182mm |
148mm |
198kg |
6-25 bar |
Ps: We can also make the products according to your drawings or sample.
