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Product Details:
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| Material: | Tungsten Carbide | Condition: | New |
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| Type: | Center Drill Bit | Drilling Diameter: | 140 - 450 Mm |
| High Light: | DTH Reverse Circulation Hammer,Drilling Reverse Circulation Hammer,Circulation Hammer Drill Bits |
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Dth Reverse Circulation Hammer For Exploration Drilling 127-178mm Bit Dia of DTH Hammers and bits
Product features of DTH Hammers and bits
RCseries reverse circulation DTH Hammer is the latest developed product of our company. It is mainly used for deep exploration drilling and ore grade control.
It has the following characteristics:
1.Based on previous experience of ordinary hammers, combined with the features of reverse circulation hammer, optimized internal structure and ideal energy transfer, thus ensuring the series of hammers drilling with fast, smooth and continuous sampling.
2. The internal structure is very simple with components of high rigidity, thus ensuring long life and easy maintenance of the hammer.
3.The collection tube adopts an integrative design and can be replaced without disassembling the hammer. With carburizing treatment, it has good abrasive resistance.
4.Equipped with bits designed with patent. Simply by replacing the drill bit, the same hammer can drill holes of different sizes ensuring that the sample is not contaminated.
5. In difficult conditions such as loose soil, hard rock and plenty of water exists, sampling can be done well.
Technical specification of DTH Hammers and bits
Technical Data for RC Hammer:
| DTH hammer type | HRC45 | DTH hammer type | HRC55 | HRC65 | HRC52 | ||
| Length(with bit) | 1020 | Length(with bit) | 1111 | 1250 | 1208 | ||
| Weight(less bit) | 94 | Weight(less bit) | 66.5 | 110 | 70 | ||
| External diameter | Φ99 | External diameter | Φ126 | Φ146 | Φ126 | ||
| Bit shank | HRC45 | Bit shank | HRC55 | HRC65 | HRC65 | ||
| Hole range(mm) | Φ114-127 | Hole range(mm) | Φ133-152 | Φ155-190 | Φ133-146 | ||
| Connection thread | upon drill the tube | ||||||
| Working pressure | 1.0-3.0Mpa | Working pressure | 1.3-3.5Mpa | 1.3-3.5Mpa | 1.5-3.5Mpa | ||
| Impact rate at 1.7Mpa | 30Hz | Impact rate at 2.4Mpa | 35Hz | 28Hz | 35Hz | ||
| Recommended Rotation speed | 25-40r/min | Recommended Rotation speed | 25-40r/min | 25-40r/min | 25-40r/min | ||
| Air consumption | 1.0Mpa | 8.0m3/min | Air consumption | 1.7Mpa | 16.0m3/min | 20.0m3/min | 16.0m3/min |
| 1.8Mpa | 12.0m3/min | 2.4Mpa | 22.0m3/min | 26.0m3/min | 22.0m3/min | ||
| 2.4Mpa | 16.0m3/min | 3.0Mpa | 28.0m3/min | 35.0m3/min | 28.0m3/min | ||
Reverse circulation drill bits:
| Drill Bit | Bit Dia. (mm) | NO.Air | Gauge | Front | Weight | Part No. |
| Holes | Buttons | Buttons | (Kg) | |||
| HRC | 115 | 2 | 8×φ14 | 8×φ13 | 14 | HRC45-115 |
| 140 | 2 | 8×φ16 | 8×φ14 | 16.5 | HRC55-140 | |
| 165 | 2 | 8×φ18 | 8×φ16 | 19.5 | HRC65-165 | |
| Mic | 133 | 2 | 8×φ16 | 8×φ14 | 17.5 | Mic-133 |
| 140 | 2 | 8×φ16 | 8×φ14 | 18 | Mic-140 | |
| 146 | 2 | 8×φ18 | 8×φ14 | 20 | Mic-146 | |
| PR5 | 133 | 2 | 8×φ16 | 8×φ14 | 12.5 | PR5-133 |
| 140 | 2 | 8×φ16 | 8×φ14 | 13 | PR5-140 | |
| 146 | 2 | 8×φ18 | 8×φ14 | 13.5 | PR5-146 | |
| PR4 | 115 | 2 | 8×φ16 | 8×φ13 | 14.4 | PR4-115 |
| 127 | 2 | 8×φ16 | 8×φ14 | 15 | PR4-127 | |
| 133 | 2 | 8×φ16 | 8×φ14 | 15.5 | PR4-133 |
Contact Person: Mr. hepeiliang
Tel: +8617391861661
