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Your Professional DTH Drilling Rig Supplier

 

We are a professional manufacturer and trading company specializing in water well drilling rigs, mining exploration rigs, and related equipment. Supported by an experienced technical team, we operate a modern factory equipped with CNC machining centers, automated welding systems, and advanced testing instruments. Our streamlined production lines and strict quality control ensure consistent reliability and performance. With years of R&D and manufacturing experience, we provide both standard products and customized solutions to meet diverse project requirements.

 
 
Why choose us

Advanced Production Technology

CNC machining, automated welding, and precision testing equipment enable high accuracy and reliability throughout the manufacturing process.

Customized Solutions

We provide flexible customization services based on geological conditions, target depth, borehole diameter, and budget to meet diverse project requirements.

Sales Market

Our products are exported to numerous countries and regions in Africa and Asia, demonstrating our global reach and the trust international markets place in our products.

Quality Control and Testing

Our strict quality control measures and rigorous testing protocols ensure that every product meets international standards for safety, durability, and performance.

 

 

Integrated Type Down-the-hole Drill

 

 

The integrated down the hole drill rig is a self-propelled rock drilling equipment that incorporates the power system (usually a diesel engine and an air compressor), drill arm, drilling mechanism (down-the-hole impactor), travel mechanism, and control system. This design makes it highly maneuverable and flexible, and it can perform efficient rock drilling operations in various complex terrains. Its main feature is the use of down-the-hole impact technology (DTH), which uses compressed air to drive the impactor to directly impact and crush the rock at the bottom of the hole. The DTH drilling rig offers advantages such as a fast drilling speed, high efficiency, and good hole quality. It is widely used in mining, quarrying operations, infrastructure construction, and other fields.

 

Engine

Yuchai 176kw

Hole diameter

90~130mm

Depth of drilling

30m

Guide

Steel beam

Rotate torque

2700N.m

Rotate speed

10~120r/min

Advance beam stroke

4150mm

Tramming speed

Faster 3km/h

Slower 1.5km/h

Rotation motor

Eaton 6k

Compressor

Bowes Single Level:

15m^3 , 18kg

Weight

10t

Overall dimension

8800*2300*2600mm

 

Advantages of Integrated Type Down-the-hole Drill

Improve production efficiency

The integrated design and powerful power system make the drilling speed faster and more efficient, which can shorten the project cycle.

 

Reducing operating costs

The integrated design reduces the investment in auxiliary equipment, and the efficient drilling performance reduces energy consumption and labor costs.

Improve operation safety

The intelligent control system and perfect safety protection measures effectively reduce the operation risk and ensure the safety of operators.

Adapt to complex working conditions

The powerful off-road capability and flexible drill arm system enable down-the-hole drilling machines to operate in various complex terrains and working conditions.

Environmental protection and energy saving

The efficient dust removal system and optimized power system help reduce the impact on the environment and meet the environmental protection requirements of modern mining and engineering construction.

 

 

Application of Integrated Type Down-the-hole Drill

Mining Operations: It is used for perforation and blasting operations in various metal and non-metal mines to improve the efficiency of ore mining. It is key equipment for mining production.

 

Quarry Operations: It is used to mine stone materials, such as granite and limestone, to meet the demand for stone materials in the construction, road, and other industries.

 

Infrastructure Construction: It is used for rock blasting, foundation reinforcement, tunnel excavation, and other operations in projects such as roads, railways, bridges, and water conservancy projects.

 

Geothermal Exploration: It is used to drill geothermal wells and conduct exploration and development of geothermal resources.

 

Water Well Drilling: It is used to drill water wells in rock formations to obtain groundwater resources.

 

Anchoring Projects: It is used to drill anchor holes for slope support, tunnel reinforcement, and other projects.

Small-diameter Integrated Down-the-hole Drill

 

Components of Integrated Type Down-the-hole Drill
 

Drill stand: The drill stand is the guide rail for the sliding of the slewing device, the advancement and lifting of the drilling tool.

 

Compartment: The carriage is a square box structure welded by steel plates, which is used to connect and support the drill frame.

 

Rotary device: This mechanism is composed of hydraulic motor, spindle mechanism, pressure head, slide plate and central air supply mechanism. The chain of the propulsion mechanism is fixed on the slide plate through the pin shaft and the spring damping mechanism.

 

Propulsion mechanism: The propulsion mechanism is composed of a propulsion hydraulic motor, a sprocket set, a chain and a buffer spring.

 

Rod unloader: The rod unloader is composed of upper rod body, lower rod body, clamping cylinder and rod output cylinder.

 

Dust removal device: The dust removal device is divided into several methods such as dry dust removal, wet dust removal, mixed dust removal and foam dust removal.

 

Walking mechanism: The walking device is composed of a walking frame, a hydraulic motor, a multi-stage planetary reducer, a crawler belt, a driving wheel, a driven wheel, and a tensioning device.

 

Frame: Air compressor unit, dust removal device, fuel tank pump unit, valve group, cab, etc. are all installed on the frame.

 

Fuselage slewing mechanism: This mechanism is composed of slewing motor, brake, deceleration device, pinion, slewing bearing and so on.

 

The yaw mechanism of the drilling rig: This mechanism is composed of yaw cylinder, hinge shaft and hinge seat, which can make the rig yaw left and right and adjust the drilling angle.

 

Compressor system and impactor: The compressor system is generally equipped with a screw air compressor to provide compressed air for the jet cleaning system of the high-pressure impactor and laminar flow dust collector.

 

Working Principle of Integrated Type Down-the-hole Drill
 

Pneumatic Action

Compressed Air Supply: The rig uses an air compressor to generate compressed air at pressures typically ranging from 170 to 240 PSI (Pounds per Square Inch).

Hammer Action: The compressed air drives a piston within the down-the-hole hammer, which strikes the drill bit with a force of up to 1,500 Joules per strike. This rapid succession of impacts breaks the hard rock into smaller fragments.

Cuttings Removal: The same compressed air that drives the hammer also helps in clearing the drilled material (cuttings) from the borehole. This is achieved by creating an airlift effect, where the air flows up the outer annulus of the drill string, carrying the cuttings to the surface.

Mechanical Action

Rotational Movement: In addition to the pneumatic action, the drill string rotates, usually at speeds of 50 to 200 RPM (Revolutions Per Minute). This rotation helps in evenly distributing the impact force around the circumference of the hole, ensuring a uniform bore.

Feed Force: The rig applies a consistent downward feed force on the drill string, typically ranging from 3,000 to 10,000 Newtons. This force presses the drill bit against the rock face, enhancing the efficiency of the hammering action.

 

 

FAQ

 

Q: Will you provide some spare parts of the machines?

A: Yes, of course.

Q: Which payment term can you accept?

A: 30% T/T in advanced, 70% T/T against the B/L copy.

Q: How long will you take to arrange production?

A: We can delivery the normal goods within 7-15 days. Other nonstandard electrical items we will delivery within 25-30 days.

Q: Can you accept OEM orders?

A: Yes, with professional design team, OEM orders are highly welcome.

Q: Which trade term can you accept?

A: Available trade terms: FOB, CIF, CFR, EXW, CPT, etc.

As one of the leading DTH drilling rig manufacturers and suppliers in China, we warmly welcome you to buy high-grade DTH drilling rig for sale here from our factory. All customized products are with high quality and competitive price.

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