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Help Center4 Inch High Air Pressure Down The Hole DTH Hammer(Mission40/NM4A)
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Specifications
Down The Hole hammer drill1.Lower energy consumption
2.Higher impact frequency
3Easy& cheap maintenance
4Long life,reliable
4 Inch High Air Pressure Down The Hole DTH Hammer(Mission40/NM4A) :
1. 10 years manufacturing experience;
2. Certificate: ISO9001:2008
3. Material: Carbide
It is a kind of high air pressure DTH Hammer without foot valve, our newest design. It is also one of the most advanced DTH Hammers in the world.
It has the following advantages:
1. Out of the trouble of foot valve fracture and expansion and contraction.
2. Lower energy consumption and higher impact frequency. The drilling speed is 15%-30% higher than the one with foot valve.
3. Simple structure, reliable parts, long life, easy and cheap maintenance.
4. Lower air and oil consumption. The oil consumption is about 10% lower than the one with foot valve.
Length (Without Bit) | Weight (Without Bit) | External diameter | Bit Shank | Hole Range | Connection Thread | ||
1005mm | 40.00kg | 99mm | HM4 | 110-135 | API2 3/8Reg | ||
Working Pressure | Impact rate at 1.7Mpa | Recommended rotation speed | Air consumption | ||||
1.0Mpa | 1.8Mpa | 2.4Mpa | |||||
1.0-2.5Mpa | 30HZ | 25-40r/min | 5m³/min | 9m³/min | 14m³/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 | 6.50 0.01 0.35 0.05 1.50 2.10 8.50 14.80 1.80 0.005 0.30 3.80 6.60 | NM4A01 NM4A02 NM4A03 NM4A04 NM4A05 NM4A06 NM4A07 NM4A08 NM4A09 NM4A10 NM4A11 NM4A12 NM4A13 |
Packing: Inner package with cartons,outer package with wooden case
Delivery: in 20 working days after receiving the advance payment
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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