DTH hammers
The “DTH” is the abbreviation of “Down The Hole” and sometimes it is also called “RAB” in some markets, then the “RAB” is short for “Rotary Air Blasting”.
A 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. In addition, it can work at the air pressure from 6 Bar to 35 Bar(0.6~ 3.5Mpa). At last, we developed various type of DTH hammer which can be compatible with DHD, COP, QL, MISSION and SD shank of DTH bits and performs very well. Therefore, the newest generation DTH Hammer is very popular among our customers and has a good market share as soon as it launched in the market.
1, The Erocdrills DHD series DTH hammer: The Erocdrills DHD series hammers can fit the DTH bits with DHD shank. Due to its optimized and robust design, in addition the superior material makes the DTH hammer longer life, less air consumption and 15% higher penetration speed than conventional DTH hammer in the market. The below is the specification of EROCDRILLS DHD series DTH hammer:
Erocdrills DHD hammer
DHD Hammer size | DHD Hammer working pressure | The impact freequency when it is working on 20Bar |
DHD3.5 | 6 Bar to 30 Bar | 32 Hz |
DHD340 | 31 Hz | |
DHD350 | 30 Hz | |
DHD360 | 28 Hz | |
DHD380 | 23 Hz |
2, The Erocdrills QL series DTH Hammer: The Erocdrills QL series hammers can fit the DTH bits with QL shank. Due to its optimized and robust design, in addition the superior material makes the DTH hammer longer life, less air consumption and 15% higher penetration speed than conventional DTH hammer in the market. The below is the specification of Erocdrills QL series DTH hammer:
Erocdrills QL hammer
QL DTH Hammer size | QL DTH Hammer working pressure | The impact freequency when it is working on 18Bar |
QL40 DTH Hammer | 6Bar to 30 Bar | 31Hz |
QL50 DTH Hammer | 30Hz | |
QL60 DTH Hammer | 28Hz | |
QL80 DTH Hammer | 23Hz |
3, The Erocdrills Series DTH hammer: The EROCDRILLS MISSION series hammers can fit the DTH bits with MISSION shank. Due to its optimized and robust design, in addition the superior material makes the DTH hammer longer life, less air consumption and 15% higher penetration speed than conventional DTH hammer in the market. The below is the specification of EROCDRILLS MISSION series DTH hammer:
Erocdrills MISSION hammer
MISSION DTH Hammer size | MISSION DTH Hammer working pressure | The impact freequency when it is working on 18 Bar |
MISSION30 DTH Hammer | 6Bar to 30Bar | 33Hz |
MISSION40 DTH Hammer | 33Hz | |
MISSION50 DTH Hammer | 33Hz | |
MISSION60 DTH Hammer | 30Hz | |
MISSION80 DTH Hammer | 25Hz |
4, The Erocdrills SD Series DTH Hammer: The Erocdrills SD series hammers can fit the DTH bits with SD shank. Due to its optimized and robust design, in addition the superior material makes the DTH hammer longer life, less air consumption and 15% higher penetration speed than conventional DTH hammer in the market. The below is the specification of Erocdrills SD series DTH hammer:
EROCDRILLS SD hammer
SD DTH Hammer size | SD DTH Hammer working pressure | The impact freequency when it is working on 18Bar |
SD4 DTH Hammer | 6Bar to 30 Bar | 31Hz |
SD5 DTH Hammer | 30Hz | |
SD6 DTH Hammer | 28Hz | |
SD8 DTH Hammer | 23Hz |