Erocdrills as a 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 ,  more stable , 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.

DTH DRILL 

Down-the-hole drill is a device used to drill hole in rock before engineering blasting. There are three models, which include hydraulic, internal combustion and electric.

1. DTH drilling rig can be divided into two categories according to the different places of using: underground and surface drilling. We main supply surface drill spare sparts for DTH drilling rig.

2. DTH drilling rigs can be divided into light DTH drilling rigs (aperture 80~100mm), medium DTH drilling rigs (aperture 130~180mm), heavy DTH drilling rigs (aperture 180~250mm) according to the different apertures.

3. DTH DRILLING TOOL

The drilling tool consists of a drill pipe, DTH drill bit and DTH hammer . using two drill pipes when start drilling. The rotary air supply system is composed of a rotary motor, a rotary reducer, and a rotary air supply. The rotary reducer is a closed heterosexual component of the three-stage cylindrical gear, which is automatically lubricated by a screw oiler. The air supply gyrator is composed of a connecting body, a seal, a hollow main shaft and a drill pipe joint, and is provided with a pneumatic grip for connecting and unloading the drill pipe. The lifting pressure regulating mechanism is made by the lifting motor to realize the lifting action of the rotary mechanism and the drilling tool with the help of the lifting reducer and the lifting chain. In the closed chain system, a pressure regulating cylinder and a movable pulley block are installed. During normal operation, the movable pulley block is pushed by the piston rod of the pressure regulating cylinder to make the drilling tool realize decompression drilling.

4.Application

It can be used for drilling rock anchor cable holes, bolt holes, blasting holes, grouting holes and other drilling constructions in urban construction, railways, highways, rivers, hydropower and other drill projects.

Features:

1. The down-the-hole drilling rig adopts the motor through the high-performance reducer as the rotary power; the cylinder is used as the propulsive power. The hydraulic system is omitted, so the mechanical efficiency is high, the cost is low, and the performance is stable.

2. With anti-jamming protection, when the drilling tool is stuck, the motor is not easy to burn, and the reducer is not easy to damage.

3. Lightweight and easy to move, the weight of the whole DTH drilling rig is less than 500Kg, and it can be decomposed into three pieces, which is convenient to move and put on the shelf.

4. Using rolling pallets, the track is not easy to wear.

5. The down-the-hole drilling rig adopts semi-automatic disassembly of the drill pipe, which has high work efficiency.