China 4" DHD340/SD4/Ql40/Cop44/M40 Down The Hole DTH Drill Hammer, Find details about China DTH Hammers, Down The Hole Hammer from 4" DHD340/SD4/Ql40/Cop44/M40 Down The Hole DTH Drill Hammer
DHD340 COP44 | SD4 | M40 | QL40 | |
Length(less bit) | 1030mm | 1084mm | 1005mm | 1097mm |
Weight (less bit) | 39kg | 40.5kg | 40.0kg | 41.00kg |
External diameter | 99mm | 99mm | 99mm | 99mm |
Bits shank | DHD340 COP44 | SD4 | Misson40 | QL40 |
Bits diameter | 105-130mm 4 1/8" - 5 1/8" | 105-130mm 4 1/8" - 5 1/8" | 105-130mm 4 1/8" - 5 1/8" | 105-130mm 4 1/8" - 5 1/8" |
Connection thread | API 2 3/8" Reg | API 2 3/8" Reg | API 2 3/8" Reg | API 2 3/8" Reg |
Air pressure | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa |