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8" DTH Hammer

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  • The product descript

QD85A DTH HAMMER


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Item Description

Weight

(kg)

Part Number

  

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

 

 

20.00

 

0.02

 

0.70

 

0.10

 

3.50

 

4.20

 

23.00

 

31.50

 

6.50

 

0.01

 

0.60

 

6.00

 

26.00

 

HD65A01

 

HD65A02

 

HD65A03

 

HD65A04

 

HD65A05

 

HD65A06

 

HD65A07

 

HD65A08

 

HD65A09

 

HD65A010

 

HD65A011

 

HD65A012

 

HD55A013

 

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

Technical Data 

Length(Less bit)

Weight(Less bit)

External diameter

Bit Shank

Hole Range

Connection Thread

1359mm

175.0Kg

undefinedOslash;180mm

Cop844

DHD380

undefinedOslash;195- undefinedoslash;254

API4 undefinedfrac12;Reg

Working Pressure

Impactrate 1.7Mpa

Recommended

Rotation speed

Air consumption

1.0Mpa

1.8 Mpa

2.4 Mpa

1.0-2.5 Mpa

22HZ

15-25r/min

12m2/min

22m2/min

28m2/min

linkman:Mr. Yang     Telephone:0086-594-2956555   Phone number:+8613375052021


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