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Specifications
12" DTH Hammer Drill1.Lower energy consumption
2.Higher impact frequency
3.Easy and cheap maintenance
4.Long life, reliable
12" Inch Down The Hole DTH Hammer Drill NUMA120 :
1. 10 years manufacturing experience;
2. Certificate: ISO9001:2008
3. Material: Carbide
It is a kind of valveless high air pressure DTH Hammer with foot valve.
It has the following advantages:
1. Valveless air distribution. More reliable.
2. Simple design of the piston, long life.
3. More efficient energy transfer, faster drilling speed, lower air consumption and lower oil consumption.
4. Fewer internal parts, simple structure, longer life, less failure and easier to maintain because all the parts are heat treated.
5. Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multi-step thread.
12" Inch Down The Hole DTH Hammer Drill NUMA120 Technical Data
Length (Without Bit) | Weight (Without Bit) | External diameter | Bit Shank | Hole Range | Connection Thread | ||
1900mm | 485.00kg | 275mm | NUMA120 | 305-445 | API6 5/8Reg | ||
Working Pressure | Impact rate at 1.7Mpa | Recommended rotation speed | Air consumption | ||||
1.0Mpa | 1.8Mpa | 2.4Mpa | |||||
1.0-2.5Mpa | 16HZ | 15-25r/min | 30m³/min | 56m³/min | 78m³/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. Compression Buffer 7. Air Distributor 8. Internal Cylinder 9. Piston 10. External Cylinder 11. Guided Sleeve 12. o Ring of Stop Ring 13. Stop Ring 14. Breakout Ring 15. Drive Chuck 16. Drill Bit | 70.00 0.04 0.80 3.00 0.10 1.00 20.00 23.00 125.00 170.00 18.00 0.04 4.50 0.80 49.00 120.00 | NN12001 NN12002 NN12003 NN12004 NN12005 NN12006 NN12007 NN12008 NN12009 NN12010 NN12011 NN12012 NN12013 NN12014 NN12015 NN12016 |
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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