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4 Inch DTH Drill Hammer/Iron Ore Mining DTH Hammer(QL40)US$ 900 - 10,000MOQ: 1 Piece -
10" DTH Drill Hammer/High Air Pressure Down Hole Hammer(SD10)US$ 5 - 10,000MOQ: 1 Piece
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High Quality 4" Down Hole Drill Hammer(ND45/DHD340/COP44)US$ 900 - 10,000MOQ: 1 Piece
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Construction Drilling DTH Hammer/Water Well Drilling Hammer/Oilfeild Drilling DTH Hammer(ND475A)US$ 9 - 10,000MOQ: 1 Piece
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1-2 Inch Middle-low Air Pressure DTH Hammer for Mining/Rock Drilling(NBR1A)US$ 1 - 10,000MOQ: 1 Piece
Specifications
Middle Air PressureDTH Hammer1.Higher impact frequency
2.Faster drilling speed
3.Lower oil consumption
4.Suit for quarrying
Low Price Middle-low Air Pressure DTH Hammer(NBR3A):
1. 10 years manufacturing experience;
2. Certificate: ISO9001:2008
3. Material: Carbide
NBR Series DTH Hammers are designed to operate efficiently at low air pressures and medium air pressures, using BR series bits.
Advantages:
1. The operating air pressures are between 0.7Mpa and 1.75Mpa.
2. Valveless hammers.
3. Simple structure, easy to assemble and to disassemble, long life.
4. Higher impact frequency and faster drilling speed.
5. Lower air consumption and low oil consumption. A hole can be drilled on the check valve to provide more efficient cuttings discharge.
6. Especially suitable for quarrying.
NBR3A DTH Hammer Technical Data
Length (Without Bit) | Weight (Without Bit) | External diameter | Bit Shank | Hole Range | Connection Thread | ||
889mm | 26.00kg | 82mm | BR3 | 90-110 | API2 3/8Reg | ||
Working Pressure | Impact rate at 1.4Mpa | Recommended rotation speed | Air consumption | ||||
0.7Mpa | 1.0Mpa | 1.4Mpa | |||||
0.7-1.75Mpa | 25HZ | 25-40r/min | 4m³/min | 6m³/min | 8m³/min | ||
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Item Description | Weight (kg) | Part Number |
1. Top Sub 2. O Ring of Top Sub 3. Check Valve 4. Spring 5. Air Distributor 6. Internal Cylinder 7. Piston 8. External Cylinder 9. Guided Sleeve 10. o Ring of Stop Ring 11. Stop Ring 12. Drive Chuck 13. Drill Bit | 5.20 0.01 0.20 0.02 0.80 1.30 5.50 9.50 1.00 0.05 0.15 2.00 4.00 | NBR3A01 NBR3A02 NBR3A03 NBR3A04 NBR3A05 NBR3A06 NBR3A07 NBR3A08 NBR3A09 NBR3A10 NBR3A11 NBR3A12 NBR3A13 |
Our advantages:
We have advanced production equipments & talented researchers & technicians & rich experiences in R & D and production.
We use the best quality raw materials.
We adopt advanced production technology & strict testing procedure.
We passed ISO9001 quality management system certification.
We accept OEM manufacturing and produce on your design.
Send Inquiry to This Supplier
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