DTH Hammer DTH Drilling Tools for Hard Rock

Functions And Features
  • Low air pressure hammer : The compressed air is adopted as the driving force.To get a better performance and prevent dust pollution, some high-pressure water may be added into the air for wet rock drilling. It is mainly featured in: 1.The strong energy of single impact and the low energy consumption in rock crushing. 2.The weight ratio of piston and bit almost reaches 1:1 to provide long effective acting time, which leads to the improved efficiency in rock crushing and the extended service life of the drilling tool. 3.A good performance in central air exhaust and cutting discharge, which reduces the repeated crushing of rock. 4.Acheck valves device is available to drill holes under water. The HR series DTH Hammer, an ideal drilling tool, is widely used in such industries relating to energy,construction,metallurgy,building etc.
  • High air pressure DTH hammer : The rock hammer has the fellow advantages 1: Valveless air distribution. more reliable. 2. The rock impacter are simple design of the piston, long life. 3. More efficient energy transfter,faster drilling speed, lower air consumption and lower oil consumption. 4. Fewer internal parts, simple structure, long life, less failure and easier to maintain because all the parts are heat treated. 5. Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected multi-step thread.

Product Description

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.

Product Specifications

Type Size Model Outer Diameter
High pressure DTH Hammer 3 inch JD25A 71mm
3.5 inch JD35A/M30 82mm
4 inch JD45A/QL40A/M40/SD4 99mm
5 inch JD55A/QL50A/M50/SD5 125mm
6 inch JD65A/QL60A/M60/SD6 142mm
8 inch JD85A/QL80A/M80/SD8 180mm
10 inch HD100A/SD10 225mm
12 inch JD125A/SD12 275mm
14 inch JD140A -
Middel Pressure DTH Hammer 2.5 inch BR1 56mm
3 inch BR2 64mm
3.5 inch BR3 82mm
Lower Pressure DTH Hammer 3 inch CIR65 68mm
3.5 inch CIR70 76mm
4 inch CIR90 99mm
5 inch CIR110 110mm
6 inch CIR150 150mm
8 inch CIR170 170mm
Back Hammer 6 inch BH140 155mm
8 inch BH170 190mm
10 inch BH190 220mm
12 inch BH240 190mm
All can be designed according to your requests!
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