Specifications

DTH Drilling Hammer
1.Lower energy consumption
2.Higher impact frequency
3.Easy and cheap maintenance
4.Long life, reliable

Faster Drilling High Air Pressure DTH Drilling Hammer/Downhole Drill Tools(NUMA100):

1. 10 years manufacturing experience;

2. Certificate: ISO9001:2008

3. Material: Carbide

It is a kind of high air pressure DTH Hammer without footvalve, 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.

NN100A DTH Hammer Technical Data

Length (Without Bit)	Weight (Without Bit)	External diameter	Bit Shank	Hole Range		Connection Thread
1545mm	305.00kg	226mm	NUMA100	254-311		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	20HZ	15-25r/min		22m³/min	40m³/min		65m³/min

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. Drill Bit	59.00 0.03 0.50 1.40 0.30 10.50 12.50 77.00 110.00 4.50 0.02 1.90 0.50 25.50 106.00	NN100A01 NN100A02 NN100A03 NN100A04 NN100A05 NN100A06 NN100A07 NN100A08 NN100A09 NN100A10 NN100A11 NN100A12 NN100A13 NN100A14 NN100A15