Down The Hole Drill Rig | | DTH Drilling Machine

A down the hole drill rig is a powerful machine used to drill holes in hard rocks. People also call it a DTH drilling rig. Unlike other drilling machines, this rig puts the hammer directly down into the hole. This design helps the machine lose very little energy when the drill goes deeper.

The working process of this machine is simple but very efficient:

Compressed air enters the drill pipe to push the hammer.
The hammer strikes the drill bit directly against the rock.
The bit rotates and breaks the hard rock into small pieces.
Air blows out the rock dust from the bottom of the hole to the surface.

This direct impact makes the machine excellent for blasting holes, water well drilling, and mining projects. If you need a reliable machine for tough rock conditions, YG DTH drilling equipment is your best choice.

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YG Hot-sale Down The Hole Drill Rig Specifications

Model	YGS100A	YGS153	YGS180	YGS300	YGS350
Total weight	5.95T	3.8T	6.3T	6.8T	8T
Walking speed	2.5km/h	2.5km/h	2.5km/h	2.2/3.8km/h	4km/h 2km/h
Diesel tank capacity	85L	70L	85L	85L	225L
Shipping size	650021002400mm	464019802260mm	660021102500mm	660022202600mm	760023502800mm
Drilling hole diameter	90-146mm	83-130mm	90-146mm	90-152mm	90-165mm
Power configuration	YCD4R22T-80	YC2108 33kw/2400rpm	YCD4R22T-80 55kw	YC4DK80-T302	YC4DK100-T304 73.5kw/2200rpm
Highest horizontal hole height	3.2m	2.8m	3.6m	3.25m	3.5m

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Key Benefits Of Using A DTH Drilling Machine For Your Projects

Choosing the right machine can save you a lot of time and labor cost. A professional dth drilling machine offers many advantages for modern engineering and mining work.

Here are the main reasons why buyers choose this equipment:

High Efficiency in Hard Rock: The hammer works directly at the bottom of the hole, so it breaks hard stones very quickly.
Straight Holes: The drill pipes are rigid, which ensures the hole stays perfectly straight even at great depths.
Deep Drilling Capacity: It does not lose energy as the hole gets deeper, allowing you to reach deep underground targets easily.
Low Energy Dust Cleaning: It uses the same exhaust air from the hammer to clean the dust, saving additional energy.

Our machines are built with strong steel to handle the most difficult working environments. You can rely on them for long hours of continuous work.

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Technical Specifications And Features Of YG Down The Hole Drill Rig

As a professional manufacturer, YG Machinery designs each down the hole drill rig with high-quality components. We focus on power, stability, and easy operation so your workers can learn how to use it quickly.

The machine consists of several high-performance systems:

Powerful Diesel Engine: Provides strong driving force for the hydraulic pumps and tracks.
Heavy-Duty Hydraulic System: Controls the lifting, rotation, and movement with high precision.
Strong Crawler Tracks: Allows the rig to climb steep hills and move smoothly on muddy construction sites.
Advanced Dust Collector: Collects rock dust during drilling to protect the environment and the operator’s health.

These features make our equipment highly stable and efficient on-site. It reduces your downtime and helps you finish your projects ahead of schedule.

What Global Buyers Care About: How To Choose The Right Model

Many buyers ask on Quora how to choose the right down the hole drill rig for their projects. Choosing the wrong size can waste your time or damage your tools.

To get the best performance, you should check these three details:

Rock Hardness: Very hard rock like granite needs a high-pressure air hammer to break it effectively.
Hole Diameter: Make sure the drill machine model can support the exact hole size your project needs.
Air Compressor Match: The hammer needs enough air pressure and air flow to blow the stone dust out of the deep hole.

If you are not sure which model fits your local soil or rock type, our engineers can help you choose the best combination.

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Factors That Influence The DTH Machine Price

When you plan to buy a new machine, understanding the dth machine price is very important. The cost changes based on the configuration and the specific parts you choose for your project.

The final cost of the machine depends on these main factors:

Drilling Depth and Diameter: Larger holes and deeper targets require more powerful engines and stronger structures.
Air Compressor Matching: The size of the air compressor determines the drilling speed and adds to the overall package cost.
Chassis Type: You can choose between crawler tracks for rough terrain or truck-mounted designs for easy highway transport.
Brand of Core Components: Hydraulic valves and pumps from international brands will affect the initial equipment cost.

YG Machinery always helps you select the most suitable model based on your actual budget and project needs. We ensure you get the best performance for every dollar you spend.

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Daily DTH-Specific Maintenance Protocol

Good maintenance keeps your machine running smoothly and prevents unexpected breakdowns during work. Taking care of your DTH drilling rig is simple if you follow a regular checklist.

Please make sure your operators perform these simple checks every day:

Hammer Spline Wear: Measure the spline tolerance of the DTH hammer every 50 drilling hours. If wear exceeds 3mm, replace it to prevent internal piston damage.
Thread Galling Prevention: Apply API-standard lithium-based thread grease to drill pipe joints every time you add a rod. Never dry-couple.
Hydraulic Oil Temp: Monitor the gauge; if it exceeds 65°C on a 40°C ambient mining site, stop and check the cooler fan immediately.

Why Choose YG Machinery For Your Down The Hole Drill Rig

YG Machinery has years of experience in manufacturing rock drilling equipment. We provide complete solutions, including the machine, air compressors, drill pipes, and hammer bits.

When you buy a down the hole drill rig from us, you get full factory support:

Factory Direct Supply: We manufacture the machines ourselves, ensuring strict quality control from raw materials to final testing.
Customized Configurations: We can adjust the engine power, track width, and mast height to match your specific rock conditions.
Fast Delivery: We keep popular models and essential spare parts in stock to shorten your waiting time.
Lifetime Technical Support: Our engineering team is always ready to guide you through video calls if you face any operation issues.

We focus on building long-term business relationships with global buyers by delivering durable machines and honest service.