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Help CenterConstruction Drilling DTH Hammer/Water Well Drilling Hammer/Oilfeild Drilling DTH Hammer(ND475A)
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Specifications
Construction DTH HammerFaster drilling speed
Lower air consumption
Reliable anti-shedding device
Optimal energy transfer
Construction Drilling DTH Hammer/Water Well Drilling Hammer/Oilfeild Drilling DTH Hammer(ND475A):
1. 10 years manufacturing experience;
2. Certificate: ISO9001:2008
3. Material: Carbide
Based on the characteristics of the wells, oil, gas and construction drilling, our company self-designed, developed and manufactured this kind of high air pressure DTH hammer.
It has the following characteristics:
1. Using the latest rock drilling theory, optimizing the inside structure and the size of the air distribution, to make the DTH Hammer obtain the optimal energy transfer and make it achieve faster drilling speed and lower air consumption.
2. For such projects as the drill bit break, retrieving very difficult, we specially designed a safe and reliable anti-shedding device for the bit.
3. The check valve can be replaced to the one with bigger ail controlling hole to provide more efficient cuttings discharge.
4. The top sub and the drive chuck have special thread, which can achieve an easier disassemble.
ND475A DTH Hammer Technical Data
Length (Without Bit) | Weight (Without Bit) | External diameter | Bit Shank | Hole Range | Connection Thread | ||
4080mm | 2775.00kg | 475mm | HD475 | 508-760 | API 85/8Reg | ||
Working Pressure | Impact rate at 1.7Mpa | Recommended rotation speed | Air consumption | ||||
1.0Mpa | 1.8Mpa | 2.4Mpa | |||||
1.0-2.5Mpa | 20HZ | 15-25r/min | 56m³/min | 75m³/min | 85m³/min | ||
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Item Description | Weight (kg) | Part Number |
1. Top Sub 2. O Ring of Top Sub 3. Breakout Ring 4. Check Valve 5. Spring 6. Air Distributor 7. Internal Cylinder 8. Piston 9. External Cylinder 10. Guided Sleeve 11. o Ring of Stop Ring 12. Stop Ring 13. Breakout Ring 14. Drive Chuck 15. Retainer 16. Drill Bit | 800.00 0.02 3.55 13.5 0.35 58.9 101.6 517.0 952.0 98.0 0.02 14.25 3.55 162.0 50.00 528.00 | ND475A01 ND475A02 ND475A03 ND475A04 ND475A05 ND475A06 ND475A07 ND475A08 ND475A09 ND475A10 ND475A11 ND475A12 ND475A13 ND475A14 ND475A15 ND475A16 |
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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