Hunan Jetvision Industrial CO.,LTD
Customised Cemented Carbide Components Producer And Exporter
Customised Cemented Carbide Components Producer And Exporter
Product characteristics
1. high and low air pressure down-the-hole drill bits
2. Low air pressure hole Dia.:65-220mm
3. High air pressure hole Dia.:85-305mm
4. Face type:drop center/concave/convex/double gauge/flat
5. Our DTH Bit can be suitable for Original Atlas Copco /Sandivk big brands' DTH Hammers, such as XL, Mission, COP, IR, Mach, Demag, SD, Bulroc, Halco Mach, Digger etc.
6. High grade tungsten carbide inserts
7. Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment
Application
Different face style makes DTH bits suitable for various rock conditions.
Flat face: This is an universal design, especially for hard and abrasive rock formation. So typically, flat face with hemi-spherical buttons design is the most popular choice.
Convex face: A classic design for soft to medium hard rock formation which is not so abrasive. This design have very excellent penetration rate but poor in hole deviation if rocks are hard.
Concave face: Medium hard to hard rock formations which is less abrasive and fractured. Especially for deep hole drilling, excellent control over hole deviation.
DGR face: A special design for hard or very hard rock conditions, double gauge row buttons provide very excellent ware-resistance and very longer life time. It is usually used for some bigger diameter DTH bits.
Besides, we are manufacturing the DTH bits with various shanks so they can be compatible with different DTH hammers.
• Underground mining
• Tunneling
• Quarry benching operations
Partial specification as below, we can design and manufacture according to customer's requirement of the Bit Dia, No. of air holes, carbide button shape and the face shape.
