DTH Drilling Rig Machines are impact rotary blast hole drill. It uses the impactor and drill bit that dive into the bottom of the hole to impact and crush the rock, so it is called a down-the-hole mining drilling machine.
DTH drill machine is composed of impactor and drill bit, rotary mechanism, lifting mechanism, pressurizing device, traveling mechanism, slag discharge system, drilling frame and drill pipe. The drilling tools of the surface drilling rig include drill pipe, DTH hammer and drill bit. The surface drill rigs uses the drill rod to drive the DTH hammer and the drill bit to rotate together, and uses the piston of the DTH hammer to impact the drill bit to break the ore rock. This dth drill rig uses the compressed air output by the screw air compressor as the power to impact rock drilling and flush the blasthole. It can be divided into integrated type and separated type mine drilling machine.
The integrated type mine drilling rig is installed with the air compressor and the blast hole drilling machine, and the separated type quarry driller is separated from the air compressor. The quarry drilling machine adopts crawler walking, drilling tool rotary propulsion, drilling frame jacking compensation, and quarry drill rig leveling are all driven by hydraulic pressure.
Performance Features
It has automatic hydraulic feeding mechanism to improve drilling efficiency and reduce labor intensity.
The ball card clamping mechanism is used instead of the chuck, and the non-stop bar can be implemented, which is convenient to operate, safe and reliable.
The hoist is equipped with a cage to form a double-sided support star wheel structure, which can withstand strong impact.
Four sets of bearing positioning of the vertical axle box ensure that the gyrator has sufficient rigidity to deal with complicated geological conditions such as gravel layer and pebble layer.
This machine adopts the national patented taper clutch, which has the characteristics of large transmission torque, convenient operation and maintenance-free.
Working Principle
This drilling rig commonly used in geological drilling. The rotary mechanism of this kind of drilling rig has a long vertical shaft (about 1 meter), which is used to drive the drilling tool to rotate, realize the feed and guide the drilling tool, hence the name spindle type drill.
Application
Down the hole drill rig are usually used to drill blastholes with a diameter of 80-250 mm in small and medium-sized mines.
Blast drill rig are widely used in large, medium and small mines, hydropower, transportation and other earthwork excavation and blasting projects, and can also be used for underwater rock perforation blasting such as ports and waterways.
Blast hole drilling machine can drill holes in rocks with medium hardness or above (f≥8).
Technical Data
Model
DTH416
Hole Diameter
90-115mm
Drilling Depth
30m
Diesel Engine
YUCHAI 58KW
Climbing angles
30°
Drill Rod
Φ60*3000mm, 10pcs
Low air pressure impactor
70 model
DTH drill bit
76mm, 4pcs
Tool kit
1 set
Connector between impactor and drill rod
3pcs
Drill rod disassembly fork
3pcs
Seal ring
6sets
Total weight
4500kgs
Transportation Dimensions
4900*2000*2200mm
More Pictures
Frequently Asked Questions
QWhat is a DTH (Down-the-Hole) drilling rig?
A DTH drilling rig is an impact rotary blast hole drill. It positions the impactor and drill bit directly at the bottom of the borehole to crush rocks efficiently, making it ideal for mining and quarrying applications.
QWhat are the key parameters of the DTH416 drilling machine?
The DTH416 model features a drilling hole diameter of 90-115mm, a maximum drilling depth of 30 meters, and is powered by a YUCHAI 58KW diesel engine.
QCan this machine operate on complex geological ground?
Yes. The machine is designed with four sets of bearing positioning in the vertical axle box to ensure sufficient rigidity, enabling it to handle complex geological conditions like gravel and pebble layers.
QWhat is the difference between integrated and separated type rigs?
In integrated drilling rigs, the air compressor and the blast hole drilling machine are installed together on a single crawler structure. In separated type rigs, the air compressor is detached and operates independently from the main quarry driller.
QWhat safety and efficiency features does the rig include?
It features an automatic hydraulic feeding mechanism to save labor, a ball card clamping mechanism for safer operation instead of a chuck, and a patented taper clutch for high transmission torque and low maintenance.
QWhat hardness of rock can the blast hole drilling machine perforate?
The blast hole drilling rig is capable of drilling holes efficiently in medium-hardness rocks and tough rock formations with a protodyakonov scale rating of f≥8.
