Futures
Strict quality controlling
Selected high quality special steels and carbide
Produced by CNC machines
Simple and reasonable design, Low problem rate
Low air consumption, smooth drilling, Maximum impact power, High penetration rate
The specification of DTH hammers we sell in common as follows:
Hammer inch | Bits diameter | Shank | |
Metric | Inch | ||
1" | 64mm-70mm | 2 1/2"-2 3/4" | BR1 |
2" | 70mm-95mm | 2 3/4"-3 3/4" | MACH20/BR2 |
3" | 90mm-102mm | 3 1/2"-4" | COP32/COP34/MACH303 |
4" | 105mm-152mm | 4 1/8"-6" | COP44/DHD340/MACH44 |
5" | 133mm-165mm | 5 1/4"-6 1/2" | COP54/DHD350R/MACH50 |
6" | 152mm-254mm | 4 1/8"-10" | COP64/DHD360/SD6 |
8" | 203mm-330mm | 8"-13" | COP84/DHD380/SD8 |
10" | 254mm-380mm | 10"-15" | SD10 |
12" | 305mm-508mm | 12"-20" | DHD1120/SD12 |
1), Dia. 64mm-70mm shank Bulroc BR1
2), Dia. 70mm-95mm shank Halco MACH20, Bulroc BR2
3), Dia. 90mm-102mm shank COP32, COP34, Halco MACH303, M30, DHD3.5, Bulroc BR3
4), Dia. 105mm-152mm shank COP44, DHD340, Halco MACH44, SD4, M40, QL40, Bulroc BR4
5), Dia. 135mm-165mm shank COP54, DHD350R, COP54, Halco MACH50, SD5, M50, QL50, Bulroc BR5
6), Dia. 152mm-254mm shank COP64, DHD360, SD6, M60, QL60, Bulroc BR6
7), Dia. 203mm-330mm shank COP84, DHD380, SD8, QL80
8), Dia. 254mm-380mm shank SD10, Numa100
9), Dia. 305mm-508mm shank DHD1120, SD12, N120, N125
10), Dia. 405mm-864mm shank SD15, SD18
11), VKP80, VKP95, CIR90, CIR100, CIR110, CIR150, CIR200...
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