DTH drilling rig is a crawler-mounted drill designed for open-pit blasting and rock drilling. It is also known as a surface DTH drill rig. There are two main configurations:
- Split-type dth drilling rig – The air compressor is separate (wheeled) and tows behind the rig.
- Integrated dth drilling rig – The air compressor is built into the rig itself.
The down the hole drilling equipment is widely used in metallurgy, mining, building materials, railways, hydropower, defense construction, and earthworks – for blast hole drilling in open-pit operations and underwater drilling for reef blasting.
The crawler chassis gives the down the hole drilling rig excellent mobility on rough terrain – with walking speeds up to 4km/h, making site-to-site moves quick and efficient.
5 DTH Drilling Equipment Models
All dth drilling rig models are listed below. Choose based on your required hole diameter, engine power, and mobility needs.
| 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 |
Why Choose YG Down the Hole Drilling Rig?
1. Crawler Mobility – Moves Easily on Rough Terrain
The DTH drilling rig is mounted on a rugged crawler track system. It moves through mud, loose rock, and steep slopes without getting stuck. Walking speeds up to 4km/h mean quick repositioning between holes – reducing overall drilling time.
2. DTH Technology – Faster, Straighter Holes
The down the hole drilling equipment uses a percussion hammer that follows the bit to the bottom of the hole. Impact energy is delivered directly to the rock face – not lost through long drill strings. This delivers:
- Faster penetration rates
- Straighter, more accurate blast holes
- Less deviation – critical for controlled blasting
3. Wide Hole Diameter Range – 83mm to 165mm
The drilling rig covers most common blast hole sizes. The YGS153 handles 83‑130mm – perfect for smaller quarry blasts. The YGS350 handles 90‑165mm – for large open-pit mines and heavy construction projects.
4. Integrated or Split – Flexible Options
Choose the configuration that suits your site:
- Split-type – Air compressor separate, easier to transport, lower cost
- Integrated – Self-contained, no towing, quicker setup
The equipment is available in both configurations – ask our team for the best recommendation based on your project.
5. Diesel Powered – Works Anywhere
All models run on diesel engines – no need for external power lines. The drilling rig operates in remote quarries, mountain sites, and developing regions where grid power is unavailable.
6. High Horizontal Hole Height – Up to 3.6m
The YGS180 offers the highest horizontal hole height at 3.6 meters – reducing the need for benching and allowing efficient drilling on steep slopes and cut faces.
Applications – Where the DTH Drilling Rig Excels
1. Quarrying and Dimension Stone Extraction
Blast hole drilling for granite, marble, limestone, and sandstone quarries – the DTH drilling rig delivers accurate holes at the right angle and depth. The YGS153 is ideal for small to medium quarries; the YGS350 handles large-scale operations.
2. Open-Pit Mining
Copper, gold, iron, and coal mines – the down the hole drilling rig drills production blast holes quickly and accurately. The crawler tracks handle the rough mine floor with ease.
3. Road and Highway Construction
Cut slope drilling for mountain roads, highway widening, and tunnel portal preparation – the equipment drills horizontal and angled holes for controlled blasting.
4. Hydropower and Dam Construction
Drilling for foundation blasting, slope stabilization, and diversion tunnel construction – the down-the-hole drilling equipment works in tight river gorge sites where access is difficult.
5. Railway and Infrastructure
Cut and fill operations, tunnel entrance blasting, and rock slope trimming – the DTH drilling rig provides the mobility to move along long rail corridors.
Get Down the Hole Drilling Rig Today
Stop struggling with slow, inaccurate drilling. The DTH drilling rig delivers fast penetration, straight holes, and reliable performance in the toughest conditions.
We offer:
- Factory-direct pricing for all 5 models
- Split-type and integrated configurations
- Dust collectors available (optional)
- Custom engine brands and emission standards (upon request)
- Fast global shipping with reinforced export packaging
- Full spare parts and technical support
Contact us with your excavator make, model, and operating weight. We will recommend the perfect down hole drilling equipment within 24 hours.
