8 Inch QL80 DTH Hammer For Rock Drilling Down The Hole Drilling
Description:
“DTH” is the short for “Down The Hole” and sometimes it is also
called “RAB” in some markets, “RAB” is short for “Rotary Air
Blasting”.
Specifications:
Description | Thread connection | Outside diamete | Rec. hole size | Shank style | Working pressure | Length without bit, | Weight without bit |
shoulder to shoulder |
mm | inch | mm | inch | bar | psi | mm | inch | kg | lbs |
QL 80 STD | API 4 1/2 Reg Pin | 181 | 7 1/8 | 200 - 305 | 7 7/8 - 12 | QL 80 | 6-24 | 87-350 | 1461 | 57 1/2 | 203 | 446 |
QL 80 STD | 4 1/2 BECO Pin | 181 | 7 1/8 | 200 - 305 | 7 7/8 - 12 | QL 80 | 6-24 | 87-350 | 1461 | 57 1/2 | 203 | 446 |
QL 80 HF | API 4 1/2 Reg Pin | 181 | 7 1/8 | 200 - 305 | 7 7/8 - 12 | QL 80 | 6-24 | 87-350 | 1461 | 57 1/2 | 203 | 446 |
QL 80 HC | API 4 1/2 Reg Pin | 181 | 7 1/8 | 200 - 305 | 7 7/8 - 12 | QL 80 | 6-24 | 87-350 | 1478 | 58 3/16 | 203 | 446 |
QL 85 QM | API 4 1/2 Reg Pin | 194 | 7 5/8 | 216 - 305 | 216 - 305 | QL 80 | 6-24 | 87-350 | 1461 | 57 1/2 | 250 | 551 |
Usage:
Rotation drill rig, air compressor and the “DTH drill string” are
the essential unit for DTH drilling while the “DTH drill string” is
always made up of DTH drill rods, DTH hammer and DTH bits. As one
of key component, the DTH hammer acts as a role of converting the
air pressure to the impact energy, simultaneously transferring
impact energy and rotation force to DTH bits.
As specialist manufacturer and provider of DTH drilling tools,
hereby we recommend our newest generation DTH hammer which is
improved by absorbing art technology, selecting superior alloy
steel and robust design. It is proved by more than thousands times
of test that our newest DTH hammer has longer life , lower air
consumption and 15% higher penetration speed compared the
conventional DTH hammer in the market.
Advantage:
1. With longer operating life
2. Excellent anti-wear properties
3. Easy to operate, stable and reliable
4. Smooth with high efficiency
