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JS DTH HAMMER
The JS series DTH hammer is a new type of high pressure hammer. It is one of the most cost-effective DTH hammers available. This series of hammers matches bits without foot valves. It features fast penetration, low air consumption, excellent stability, and a long service life.
| JS--QL SHANK DTH HAMMER SPECIFICATION | |||||||
|---|---|---|---|---|---|---|---|
| Bit Shank | Length (mm) | Thread | OD (mm) | Work Pressure | Speed (r/min) | Air Consumption | Weight (kg) |
| QLX40 | 967mm | API 2 3/8"REG | 99MM | 2.5Mpa | 30-60 | 11 | 38.4 |
| QL50 | 1070mm | API 3 1/2"REG | 126MM | 2.8Mpa | 25-55 | 16 | 68.4 |
| QL60 | 1164mm | API 3 1/2"REG | 148.5MM | 3.0Mpa | 25-55 | 20 | 101.5 |
| QL80 | 1366mm | API 4 1/2"REG | 185MM | 3.0Mpa | 25-55 | 23 | 152.7 |
| QL120 | 1522mm | API 6 5/8"REG | 275MM | 3.0Mpa | 25-55 | 41 | 295 |
Matched DTH bits: Our DTH bits are made of superior quality alloy steel. Tungsten carbides are sourced from top suppliers. Advanced heat treatment and precise manufacturing ensure reliable quality.
| MORE DTH HAMMERS | ||
|---|---|---|
| Hammer Model | Matched Bit Shank Type | Rec. Diameter |
| 3.5"/3" | COP34, DHD3.5, MISSION30 | 90mm~ 105mm |
| 4" | DHD340, QL40, SD4 | 110mm~ 130mm |
| 5" | DHD350, QL50, SD5 | 134mm~ 152mm |
| 6" | DHD360, QL60, MISSION60 | 152mm~ 203mm |
| 8" | DHD380, QL80, SD8 | 203mm~ 305mm |
| 12" | DHD112, SD12, QL120 | 305mm~ 381mm |







