If you have these worries, stay and see.
DTH hammers are used for blast hole drilling and blasting, mainly applied in Mining, Marble quarry or well drilling and other construction projects.
Avoid the problem happens on foot valve. Fracture,expansion and contraction.
Lower air consumption and higher impact frequency. 15-30% higher drilling efficiency than the bit with foot valve.
Simpler structure and less spare parts, makes easier & cheaper maintenance.
Thread connection for top sub and drive chuck,makes easier disassembly.
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Ref. Parts Weight Part No
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01 Top Sub 163.5 Kg 01-N125A-01
02 Washer 1.5 Kg 01-N125A-02
03 O"Ring 0.03 Kg 01-N125A-03
04 Check Valve 1.5 Kg 01-N125A-04
05 Spring 0.2 Kg 01-N125A-05
06 Adjuster Shim 0.7 Kg 01-N125A-06
07 Rubber Buffer 0.3 Kg 01-N125A-07
08 Rubber Buffer 0.3 Kg 01-N125A-08
09 Valve Seat 11.8 Kg 01-N125A-09
10 Rigid Valve 27.4 Kg 01-N125A-10
11 O"Ring 0.03 Kg 01-N125A-11
12 O"Ring 0.03 Kg 01-N125A-12
13 Piston 137.7Kg 01-N125A-13
14 Piston Case 247.5Kg 01-N125A-14
15 Guided Sleeve 29.7 Kg 01-N125A-15
16 Check Ring 0.2 Kg 01-N125A-16
17 Retainer Ring 7 Kg 01-N125A-17
18 O"Ring 0.3 Kg 01-N125A-18
19 Washer 1.5 Kg 01-N125A-19
20 Drive Chuck 67.2 Kg 01-N125A-20
21 Drill Bit 01-N125A-21
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Length(Less bit) 1785mm
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Weight 698.5Kg
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Outer Diameter C 305mm
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Connection Thread API6 5/8"REG
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Bit Shank NUMA125A
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Hole Range C 330-C400mm
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Work Pressure 1.5-3.3 Mpa
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Recommended Rotation Speed 25-45 r/min
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Air Consumption 1.8Mpa/46m3/min 2.4Mpa/58m3/min