| Customization: | Available |
|---|---|
| Transport Package: | Cartons + Ply-Wooden Cases for Exporting |
| Specification: | DHD350R 146mm DTH Hammer Bits |
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Borehole Drilling Equipments DHD350R 146mm DTH Hammer Bits
Products Description
When you need to drill high quality holes with diameters between 100-254 mm, DTH (Down The Hole) drilling is by far the best and most effective method. DTH drilling can be performed in most types of rock, hard or soft. It's a commonly used method in the mining industry (blast hole drilling), waterwell drilling, construction, and in the oil and gas industry.
In DTH drilling, the drill string rotates while the drilling hammer continuously strikes down into the rock. Inside the hammer, a piston powered by compressed air gives the drill bit its striking power. This combined with the rotational movement means the rock is crushed in a very efficient manner.
Because the power transfer takes place down in the hole when the piston strikes directly at the bit - hence the drilling method's name - there is minimal energy losses along the drill string and holes can be drilled down to 6,000 meters in depth. DTH is a reliable method that drills stable holes with exceptional straightness.
The method is also excellent both environmentally and socially because it produces far less noise and vibration than many other drilling methods, making it a widely used drilling method in cities and other populated areas
| 5" shank Bit | Bit Dia(mm) | Bit Dia(inch) | Air Hose | Gauge buttons | Front buttons | Part No |
|
DHD350R Bits |
146mm | 5 3/4" | 2 | 8×φ18 | 8×φ15 | HD55-146mm |
| Specification of dth hammer button bits: | Diameter: (mm) |
|
1-2 inch low air pressure DTH bits Shank: BR1, BR2, DHD2.5 |
57/64/70/76/80/82/90 |
|
3 inch high Air pressure DHT bits Shank: BR3,DHD3.5,COP34,COP32,QL30,M30,IR3.5 |
85 / 90 / 95 / 100 / 105/110 |
|
4 inch high Air pressure DHT bits Shank:DHD340,COP44,M40,SD4,QL40 |
105 / 110 / 115 / 120 / 127/130 |
|
5 inch high Air pressure DHT bits Shank:DHD350,COP54,M50,SD5,QL50 |
133 / 140 / 146 / 152 / 165 |
|
6 inch high Air pressure DHT bits Shank:DHD360,M60,SD6,QL60,COP64 |
152 / 165 / 178 / 190 / 203 |
|
8 inch high Air pressure DHT bits Shank:DHD380,COP84,M80,SD8,QL80 |
195 / 203 / 216 / 254 / 305 |
|
10 inch high Air pressure DTH bits Shank:SD10, HN100 |
254/270/279/295/305 |
|
12 inch high Air pressure DTH bits Shank:SD12,DHD1120,HN120,HN125 |
305/330/343/356/368/381 |
Products photos:
Advantages:
1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special 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 drill pipe
Quality warranty:
Our hammers are made of high quality steel and all spares are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.
Package:
Using ply-wooden cases and pallet for exporting to protect products and avoid the damagement during transportation. Also we can customize package according to your special requests.
Transportation:
By air, By Express or By sea according to your requests
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