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Help Center1-2 Inch Middle-low Air Pressure DTH Hammer for Mining/Rock Drilling(NBR1A)
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Specifications
Mining Middle PressureDTH Hammer1.Higher impact frequency
2.Faster drilling speed
3.Lower oil consumption
4.Suit for quarry
1-2 Inch Middle-low Air Pressure DTH Hammer for Mining/Rock Drilling(NBR1A):
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.
NBR1A DTH Hammer Technical Data
Length (Without Bit) |
Weight (Without Bit) |
External diameter |
Bit Shank |
Hole Range |
Connection Thread |
||
760mm |
10.00kg |
54mm |
BR1 |
64-76 |
RD40 Box |
||
Working Pressure |
Impact rate at 1.4Mpa |
Recommended rotation speed |
Air consumption |
||||
0.7Mpa |
1.0Mpa |
1.4Mpa |
|||||
0.7-1.75Mpa |
27HZ |
25-40r/min |
1.5m³/min |
2.5m³/min |
3m³/min |
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Item Description |
Weight (kg) |
Part Number |
|
1. Top Sub 2. Check Valve 3. Spring 4. Air Distributor 5. Internal Cylinder 6. Piston 7. External Cylinder 8. Guided Sleeve 9. o Ring of Stop Ring 10. Stop Ring 11. Drive Chuck 12. Drill Bit |
1.70 0.01 0.05 0.80 0.80 1.20 4.00 0.15 0.05 0.10 0.80 1.70 |
NBR101 NBR102 NBR103 NBR104 NBR105 NBR106 NBR107 NBR108 NBR109 NBR110 NBR111 NBR112 |
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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