Product Details

Product Description

Faster Drilling Speed and Most Advanced Air DTH Hammer:

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.

NQL8A DTH Hammer Technical Data

Length (Without Bit)	Weight (Without Bit)	External diameter	Bit Shank	Hole Range		Connection Thread
1330mm	171.00kg	180mm	QL8	195-254		API4 1/2Reg
Working Pressure	Impact rate at 1.7Mpa	Recommended rotation speed		Air consumption
				1.0Mpa	1.8Mpa		2.4Mpa
1.0-2.5Mpa	22HZ	15-25r/min		12m³/min	22m³/min		28m³/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

34.00

0.015

0.30

1.20

0.10

6.00

6.50

42.50

59.00

6.30

0.01

1.40

0.30

13.00

35.00

NQL8A01

NQL8A02

NQL8A03

NQL8A04

NQL8A05

NQL8A06

NQL8A07

NQL8A08

NQL8A09

NQL8A10

NQL8A11

NQL8A12

NQL8A13

NQL8A14

NQL8A15

Our Services

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.