Product selling point
The DTH drill bit is a kind of drill nit that is used together with the DTH. The drilling work is carried out by the spline and the DTH hammer. Made from high quality steel and cemented carbide as a raw material, a special heat treatment process allows aball-bit to with stand the need for rock drills with a high degree of hardness and minimizes losses during energy transfer. Tooth evenly and not easy off tooth and off the tooth, so that the impact energy can be concentrated on the rock, to achieve efficient tunneling purposes. Mainly used for geological exploration, coal mines, water conservancy and hydropower, roads, railways, bridges, construction and construction.
Item Description
Model | Head Diameter (mm) | Spline | No. Air Holes | Gauge Buttons | Front Buttons | Weight (Kg) |
BR3 | 90 | 6 | 2 | 6XØ14 | 5XØ12 | 4.1 |
BR3 | 95 | 6 | 2 | 6XØ14 | 5XØ12 | 4.3 |
BR3 | 100 | 6 | 2 | 6XØ14 | 6XØ12 | 4.5 |
BR3 | 108 | 6 | 2 | 8XØ13 | 6XØ12 | 4.8 |
COP32 | 85 | 8 | 2 | 6XØ13 | 4XØ12 | 4.2 |
COP32 | 90 | 8 | 2 | 6XØ14 | 4XØ12 | 4.5 |
COP32 | 95 | 8 | 2 | 6XØ14 | 5XØ12 | 4.7 |
COP32 | 100 | 8 | 2 | 8XØ12 | 6XØ12 | 5.0 |
COP32 | 105 | 8 | 2 | 8XØ13 | 6XØ12 | 5.3 |
DHD3.5 (IR3.5, COP34) | 90 | 8 | 2 | 6XØ14 | 5XØ12 | 4.7 |
DHD3.5 (IR3.5, COP34) | 95 | 8 | 2 | 6XØ14 | 5XØ12 | 4.8 |
DHD3.5 (IR3.5, COP34) | 100 | 8 | 2 | 6XØ14 | 6XØ12 | 4.9 |
DHD3.5 (IR3.5, COP34) | 108 | 8 | 2 | 8XØ13 | 6XØ12 | 5.4 |
QL30 (COP34) | 85 | 8 | 2 | 6XØ13 | 4XØ12 | 4.2 |
QL30 (COP34) | 90 | 8 | 2 | 6XØ14 | 4XØ12 | 4.7 |
QL30 (COP34) | 95 | 8 | 2 | 6XØ14 | 5XØ12 | 4.9 |
QL30 (COP34) | 100 | 8 | 2 | 8XØ13 | 6XØ12 | 5.0 |
QL30 (COP34) | 105 | 8 | 2 | 8XØ13 | 6XØ12 | 5.5 |
Bit face shape selection
1. Center drop Bit
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
2. Concave Face
The all-round application bit face specifically for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.
3. Convex Face
For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.
4. Double Gauge Face
This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.
5. Flat Face Bit
This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.
Carbide button shape selection
1. Domed/Round Button
2. Parabolic/Semi-Ballistic Buttons
3. Ballistic Button
4. Sharp Button
5. Flat Button
3" High Air Pressure DTH Bits
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E-mail: zyzcjx@163.com
Add: No.11 Tongyang East Road,Jingzhang Olympic Park Area, Xuanhua District, Zhangjiakou City, Hebei, China
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