| Customization: | Available |
|---|---|
| Certification: | CE, ISO 9001:2000 |
| Standard: | API |
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We take pride in being one of the top supplier of DTH bits and hammers in China. We manufacture thousands of different configurations based on our customers' specifications. We have one of the largest stocking selections of bits in the China. We have achieved and adhere to the strict standards set forth to us by the ISO 9001:2008. We offer an extensive range of high quality DTH bits and hammers to customers all around the world and wins high praise for the good performance of our DTH bits and hammers.
NRC series reverse circulation DTH hammer is the latest developed product of our company.It's mainly used for deep exploration drilling and core sampling
Advantages:
1.Based on previous experience of ordinary hammer, combined with feature 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.Equipment 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 exist, sampling can be done well.
| NRC Reverse Circulation Hammer | ||||
| Item Description | Weight(kg) | |||
| NRC45 | NRC55 | NRC65 | NRC52 | |
| 1,Internal Ciclip | 0.03 | 0.04 | 0.05 | 0.04 |
| 2,Air Screen | 0.35 | 0.44 | 0.65 | 0.44 |
| 3,Top Sub | 6.50 | 9.65 | 20.00 | 9.65 |
| 4,"O"Ring | 0.01 | 0.02 | 0.02 | 0.02 |
| 5,Sample Tube | 5.10 | 6.72 | 12.50 | 6.75 |
| 6,Check Valve | 0.25 | 0.68 | 0.85 | 0.68 |
| 7,Spring | 0.04 | 0.12 | 0.10 | 0.12 |
| 8,"O"Ring | 0.01 | 0.02 | 0.02 | 0.02 |
| 9,Air Distributor | 0.85 | 1.48 | 3.50 | 1.48 |
| 10,"O"Ring | 0.02 | 0.01 | 0.02 | 0.01 |
| 11,Internal Cylinder | 2.20 | 4.12 | 4.20 | 4.12 |
| 12,Piston | 8.50 | 16.90 | 24.00 | 16.90 |
| 13,External Cylinder | 14.50 | 19.50 | 32.00 | 21.50 |
| 14,Guided Sleeve | 1.20 | 0.90 | 5.50 | 1.90 |
| 15,"O"Ring | 0.02 | |||
| 16,Stop "O"Ring | 0.01 | |||
| 17,Stop Ring | 0.32 | |||
| 18,Sharout | 1.86 | |||
| 19,Drive Chuck | 3.20 | 5.65 | 6.50 | 4.17 |
| 20,Bit Retaining Pin | 0.01 | 0.15 | 0.30 | |
| 21,Drill Bit | 10.50 | 15.80 | 31.00 | 11.05 |
| Technical Data | ||||
| Length(Without Bit) | NRC45 | NRC55 | NRC65 | NRC52 |
| 1020mm | 1111mm | 1250mm | 1208mm | |
| Weight(Without Bit) | 94.00 kg | 66.50 kg | 110.00kg | 70.00kg |
| External Diameter | Ø99mm | Ø126mm | Ø146mm | Ø126mm |
| Bit Shank | NRC45 | NRC55 | NRC65 | PR52 |
| Hole Range | Ø114-Ø127mm | Ø133-Ø15mm | Ø155-Ø190mm | Ø133-Ø146mm |
| Connection Thread | Custom support | Custom support | Custom support | Custom support |
| Working Pressure | 1.0-3.0Mpa | 1.5-3.5Mpa | 1.5-3.5Mpa | 1.5-3.5Mpa |
| Impact Rate at 17 Bar | 30HZ | 35HZ | 28HZ | 35HZ |
| Recommended Rotation Speed | 25-40 r/min | 25-40 r/min | 25-40 r/min | 25-40 r/min |
| Air Consumption | 1.0Mpa:8m³/min | 1.7Mpa:16m³/min | 1.7Mpa:20m³/min | 1.7Mpa:16m³/min |
| 1.8Mpa:12m³/min | 2.4Mpa:22m³/min | 2.0Mpa:26m³/min | 2.4Mpa:22m³/min | |
| 2.4Mpa:16m³/min | 3.0Mpa:28m³/min | 3.0Mpa:35m³/min |
3.0Mpa:28m³/min |
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ABT Drilling Equipment Co., Ltd. mainly provides holistic drilling solutions, serving the mining, stone crushing, water conservancy drilling industry, to help you solve the problem of drilling at high efficiency and low cost. We mainly provide mobile air compressors, drilling rigs, impactors, drills, crushers, water meters, is your stable and reliable partner.
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