1. High and low air pressure down-the-hole drill bits
2. Low air pressure holeDia.: 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 many types of DTH Hammer, such as XL, Mission, COP, IR, Mach, Demag, SD, Bulroc, Halco Mach, Digger etc.
6. Inch available: 1"-12"
Bit Dia. (mm)
64 - 76
70 - 90
85 - 110
BR3, Cop32, Cop34, MACH33, DHD3.5 etc.
105 - 145
Cop44, SD4, TD40, MACH44, DHD340A etc.
127 - 180
Cop54, SD5, QL50, M50, DHD350 etc.
152 - 216
Cop64, SD6, QL60, M60, DHD360 etc.
190 - 295
Cop84, SD8, QL80, M80, DHD380 etc.
251 - 394
305 - 460
SD12, NUMA120, QL120, DHD120, NUMA125
448 - 762
457 - 762
610 - 864
838 - 1092
350 - 660
508 - 760
610 - 800
The characteristics of high air pressure DTH Button Bit:
1.Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to inner structure of HD series DTH hammer designed according to newest rock drilling theory.
2.Smooth performance and long service life of HD series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.
3.Low problem rate and easy to maintenance due to simple , reliable and easy assemble and disassemble inner structure of hammer.
4.Easy to depart bit from hammer due to multi—head thread connecting chuck and cylinder of hammer.
5.Interchangeable with DTH bit and dill pipe manufactured by Atlas copco and Ingersoll-rand.
Bit face shape selection:
1. Drop Center 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
The information you may like to know before order:
1. Handling time for an order
Based on order quantity, normally it takes 25 days for production.
Only 2 or 3 days if we have stock on your request size.
2. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
3. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
4. After Services:
1). Our sales team will response for your question within 24 hours (Holidays Excluded)
2). Technical Support will be available in any time
3). Free replacement will provide once the failure confirmed caused by our product quality
Thanks for your attention and welcome to call!