DTH Hammer inch | DTH drill 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
M30 / DHD3.5 / BR3 |
4" | 105mm - 152mm | 4 1/8" - 6" |
COP44 / DHD340 / MACH44
SD4 / M40 / QL40 |
5" | 133mm - 165mm | 5 1/4" - 6 1/2" |
COP54 / DHD350R / MACH50
SD5 / M50 / QL50/BR5 |
6" | 152mm - 254mm | 4 1/8" - 10" |
COP64 / DHD360 / SD6
M60 / QL60 / Bulroc BR6 |
8" | 203mm - 330mm | 8" - 13" |
COP84 / DHD380 / SD8
QL80 / M80 |
10" | 254mm - 380mm | 10" - 15" |
SD10
NUMA100 |
12" | 305mm - 508mm | 12" - 20" |
DHD1120 / SD12
NUMA120 / NUMA125 |
DTH Hammers | Bit Shank | Connection Thread | Suitable bit | Working pressure | Air consumption | |
1-3" Middle-low pressure DTH hammers |
BR1 BR2 BR3 |
RD40 box
RD50 box API 2 3/8" Reg |
¢64-¢76mm ¢70-¢90mm ¢90-¢110mm |
0.7-1.75Mpa
0.7-1.75Mpa 0.7-1.75Mpa |
0.7Mpa | 4.5m3/min |
1.0Mpa | 4m3/min | |||||
1.4Mpa | 5m3/min | |||||
3" hammers |
DHD3.5
COP32/COP34 M30 |
API 2 3/8"Reg | ¢90-¢110mm | 1.0-1.5Mpa | 1.0Mpa | 4.5m3/min |
1.5Mpa | 9m3/min | |||||
4" hammers |
DHD340
COP44 QL40 SD4 M40 |
API 2 3/8"Reg | ¢105-¢130mm | 1.0-2.5Mpa | 1.0Mpa | 6m3/min |
1.8Mpa | 10m3/min | |||||
2.4Mpa | 15m3/min | |||||
5" hammers |
DHD350
COP54 QL50 SD5 M50 |
API 2 3/8"Reg/API 3 1/2"Reg | ¢130-¢156mm | 1.0-2.5Mpa | 1.0Mpa | 9m3/min |
1.8Mpa | 15m3/min | |||||
2.4Mpa | 23m3/min | |||||
6" hammers |
DHD360
COP64 QL60 SD6 M60 |
API 3 1/2"Reg | ¢152-¢203mm | 1.0-2.5Mpa | 1.0Mpa | 10m3/min |
1.8Mpa | 20m3/min | |||||
2.4Mpa | 28.5m3/min | |||||
8" hammers |
DHD380
COP84 QL80 SD8 |
API 4 1/2"Reg | ¢200-¢279mm | 1.0-2.5Mpa | 1.0Mpa | 15m3/min |
1.8Mpa | 26m3/min | |||||
2.4Mpa | 34m3/min | |||||
10" hammers |
SD10
NUMA100 |
API 6 5/8"Reg | ¢254-¢330mm | 1.0-2.5Mpa | 1.0Mpa | 22m3/min |
1.8Mpa | 40m3/min | |||||
2.4Mpa | 55m3/min | |||||
12" hammers |
DHD1120
SD12 NUMA120 NUMA125 |
API 6 5/8"Reg | ¢305-¢381mm | 1.0-2.5Mpa | 1.0Mpa | 30m3/min |
1.8Mpa | 56m3/min | |||||
2.4Mpa | 78m3/min |