Down the hole drilling machine is a crawler-mounted drill used for surface blasting holes. The “down the hole” name means the hammer is located directly above the drill bit, down inside the hole. This design delivers more impact energy to the bit compared to top-hammer drills, making it more efficient for medium to hard rock.
This DTH drilling equipment is also known as an open-pit DTH drill rig. It moves on crawler tracks, so it can navigate uneven quarry floors and mine sites easily. The rig carries its own diesel engine and hydraulic system. Some models are split-type (wheeled compressor + drill rig), while others are integrated (compressor built into the rig).
Down the Hole Drilling Machine – Complete Parameter Table
Below are the complete specifications for our DTH drilling equipment series. All models are crawler-mounted DTH rigs for surface drilling applications.
| 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 | 6500*2100*2400mm | 4640*1980*2260mm | 6600*2110*2500mm | 6600*2220*2600mm | 7600*2350*2800mm |
| 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 |
What Is YG DTH Drilling Rig Used For?
Down the hole drilling machine is widely used in surface drilling applications across multiple industries:
- Mining – drilling blast holes in open-pit mines
- Quarries – drilling for stone and aggregate production
- Construction – rock excavation for building foundations
- Railway and hydropower projects – drilling for tunnel and dam construction
- Underwater blasting – drilling holes for submerged rock removal
Any job that requires blast holes in rock – from small quarries to large mining operations – can use this equipment. It drills vertical, inclined, and horizontal holes depending on the job requirement.
Types of Down the Hole Drilling Machine
YG drilling rig comes in two main configurations:
| Type | Description | Best For |
| Split-type | Wheeled air compressor + separate drill rig. The compressor is towed or driven separately. | Customers who already own an air compressor, or who want to use the compressor for other tasks. |
| Integrated type | Compressor is built into the drill rig. One machine does everything. | Customers who want a single, self-contained unit. Easier to move and set up. |
Most customers choose the integrated type for convenience. The split type is more common when the customer already has a compressor or needs flexibility.
5 Key Features of YG DTH Drilling Equipment
YG down the hole drilling machine offers several practical benefits for drilling contractors.
- Crawler undercarriage – Moves easily on rough, uneven ground. No need for a separate transport vehicle on site.
- Diesel engine power – Runs independently. No external power source required.
- Wide hole range – Covers 83mm to 165mm hole diameters. One rig handles multiple jobs.
- Fuel-efficient – Tank sizes from 70L to 225L support long shifts without refuelling.
- Easy transport – Shipping sizes fit standard containers. The YGS153 can ship in a small container; larger models need a 40HQ.
For quarry operators, this drilling machine replaces slower, less efficient drilling methods. It drills faster and straighter holes, which means better blasting results and lower overall costs.
Get DTH Drilling Rig Quote Today
Ready to improve your drilling efficiency? Send us your rock type, required hole diameter and depth, and whether you need a dust collector or integrated compressor. We will reply within 24 hours with the right drilling rig recommendation and price.
