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RC545 Reverse Circulation Nrc Series Hard Rock Drilling DTH Hammers

RC545 Reverse Circulation Nrc Series Hard Rock Drilling DTH Hammers

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Brand Name :MIROC DTH Drilling Tools
Model Number :NRC Reverse Circulation DTH hammer
Certification :API
Place of Origin :China
MOQ :1 Piece Reverse Circulation DTH hammer
Price :Negotiation
Supply Ability :20000 pieces per month
Delivery Time :10-15 Days
Packaging Details :Wooden Box
Product Name :Reverse Circulation DTH hammer
Series :NRC Series DTH Hammer
Size :99mm - 126mm Diameter Dth Hammer
Type :With Foot Valve, Without Foot Valve
Use :Tunneling, Mining,Quarrying,Water Well
Color :Green, Black, Orange, Blue, Golden etc.
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RC545 Reverse Circulation Nrc Series Hard Rock Drilling DTH Hammers

NRC series reverse circulation DTH hammer is the latest developed product of our company. It is mainly used for deep exploration drilling and core sampling.

Product name DTH Hammer
Material Alloy Steel&Tungsten Carbide
Use Underground Mining,Water well,Mining,Quarry etc.
Color Green&Others
Heat treatment Anneal
Shank series
DHD,COP,MISSION, SD, DHD, BR, QL, BR,CIR etc.
Application heavy construction,Ore Drilling, mining, oil and gas, quarries

Hole

60-305mm
Size 2/3/4/5/6/7/8/9/10/12/14 inches
Advantage High Performance and factory price

The Characteristics of RC Hammers

RC series 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.

Reverse Circulation Hammers​ Specification:

Reverse Circulation Hammers
Description Weight(kg)
RC45 RC55 RC65 RC52
1. Internal Circlip 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. Shrout - - - 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
Model NRC45 NRC55 NRC65 NRC52
Length (Without Bit) 1020mm 1111mm 1250mm 1208mm
Weight (Without Bit) 94.00kg 66.50kg 110.00kg 70.00kg
External Diameter φ99mm φ126mm φ146mm φ126mm
Bit Shank NRC45 NRC55 NRC65 PR52
Hole Range φ114 - φ127mm φ133- φ152mm φ155- φ190mm φ133- φ146mm
Connection Thread As required As required As required As required
Working Pressure 1.0 - 3.0 Mpa 1.5 - 3.5 Mpa 1.5 - 3.5 Mpa 1.5 - 3.5 Mpa
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: 8 m³/ min 1.7Mpa: 16 m³/ min 1.7Mpa: 20 m³/ min 1.7Mpa: 16 m³/ min
1.8Mpa: 12 m³/ min 2.4Mpa: 22 m³/ min 2.0Mpa: 26 m³/ min 2.4Mpa: 22 m³/ min
2.4Mpa: 16 m³/ min 3.0Mpa: 28 m³/ min 3.0Mpa: 35 m³/ min 3.0Mpa: 28 m³/ min

RC545 Reverse Circulation Nrc Series Hard Rock Drilling DTH Hammers

Applications
1. Mine and quarry
2. Road construction for the drilling and blasting work
3. Water well drilling
4. Slope protection

RC545 Reverse Circulation Nrc Series Hard Rock Drilling DTH HammersRC545 Reverse Circulation Nrc Series Hard Rock Drilling DTH HammersRC545 Reverse Circulation Nrc Series Hard Rock Drilling DTH Hammers

China RC545 Reverse Circulation Nrc Series Hard Rock Drilling DTH Hammers for sale

RC545 Reverse Circulation Nrc Series Hard Rock Drilling DTH Hammers

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