4" DTH Hammer

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

6.5

0.01

0.35

0.05

1.50

2.10

8.50

15.20

1.30

0.01

0.30

3.0

 9.00

HD45A01

HD45A02

HD45A03

HD45A04

HD45A05

HD45A06

HD45A07

HD45A08

HD45A09

HD45A010

HD45A011

HD45A012

HD45A013

According to you request, the top sub can be made into two spanners, and put protection buttons.An air controlling hole can be drilled on the check valve to prpvide more efficient cuttings discharge

1011mm

43.20Kg

undefinedoslash;99mm

Cop44

DHD340

undefinedOslash;110- undefinedoslash;135

API 2⅜”Reg

Working Pressure

Impactrate 1.7Mpa

Recommended

Rotation speed

Air consumption

1.0Mpa

1.8 Mpa

2.4 Mpa

1.0-2.5 Mpa

30HZ

22-35r/min

1.0 Mpa

1.8 Mpa

2.4 Mpa