Looking for a reliable and portable drilling solution that can handle hard rock like a pro? YG small DTH drilling machine might just be your perfect match.


Whether you’re drilling water wells, preparing blasting holes for construction, or setting solar piles, this compact beast delivers high performance, efficiency, and deep precision — all without breaking the bank (or your back).
YG Small DTH Drilling Machine
DTH (Down-the-Hole) drilling technology places the hammer right behind the drill bit at the bottom of the hole. Instead of losing energy along the drill pipe, you get maximum impact exactly where it matters most — deep in the ground.
Technical Parameters of YG portable dth drilling machine
Model | YGD70/YGD80 | YGD100 | YGQ100 | YGB100-4/YGB120-5.5 |
Drilling Diameter | 50-90mm/90-120mm | 90-130mm | 90-130mm | 90-130mm |
Apply Rock | ≥20 | ≥20 | ≥20 | ≥20 |
Drilling Depth | 15m | ≥25m | ≥25m | ≥30m-40m |
Drilling rotate speed | 110r/min | 110r/min | 110r/min | 110r/min |
Working air pressure | 0.5-0.7Mpa | 0.5-1.0Mpa | 0.5-1.0Mpa | 0.5-1.0Mpa |
Air consumption | 4m³/min | 6m³/min | 12m³/min | 10m³/min |
Cylinder Diameter | 90mm | 140mm | 140mm | 140mm |
Propulsion Stroke | 1070mm | 1070mm | 1070mm | 1070mm |
Max propelled force | 3600N/8000N | 9600N | 9600N | 9600N |
Electric motor power | 3KW/4KW | 4KW | / | 4KW/5.5KW |
Electric motor voltage | 380V | 380V | / | 380V |
Rated speed | 1440r/min | 1440r/min | 3200r/min | 1440r/min |
Drilling rod OD | 42mm | 50-60mm | 50-60mm | 60mm |
Drilling rod length | 1025mm | 1025mm | 1025mm | 1025mm |
Dimension | 1740*260*420mm | 2280*440*550mm | 2230*380*550mm | 2230*380*550mm |
Weight | 280/320KG | 470KG | 450KG | 460/480KG |
The small DTH drilling machine from YG Machinery offers all the power of larger rigs but with added portability and versatility. It’s compact, easy to operate, and powerful enough to tackle hard rock formations, boulders, and dense soils with ease.

Applications of YG Small DTH Drilling Machines
- Water Well Drilling: Access clean groundwater even in rocky terrains.
- Construction Sites: Drill blasting holes with surgical precision.
- Solar Farm Projects: Quickly install deep foundations for solar panel structures.
- Mining Exploration: Extract samples or prepare blast areas easily.
- Geotechnical Surveys: Investigate underground conditions fast and efficiently.
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Features of YG Small DTH Drilling Machine
- The integrated DTH hammer system ensures faster drilling speeds and greater hole depth — even in tough conditions like granite, basalt, or limestone.
- Small footprint, lightweight body, and trailer-mounted or crawler-mounted options make transport and setup a breeze. Perfect for remote locations and tight spaces.
- YG small DTH machines are equipped with robust diesel engines, delivering powerful performance while remaining energy-efficient.
- Heavy-duty construction and high-quality components mean fewer breakdowns, lower operating costs, and a longer service life.
- Compared to larger rigs, portable down the hole drilling rigs are significantly more affordable — both in upfront cost and operational expenses.


YG Small DTH Drilling Machine Models
Here’s a quick look at some popular YG models:
Need help picking the right model? Contact YG Machinery experts for a free consultation!
Why YG Machinery?
With over 20 years of experience in drilling equipment manufacturing, YG Machinery is trusted by professionals across the globe.
When you buy from YG, you’re not just getting a machine — you’re getting outstanding support, reliable parts availability, and expert advice whenever you need it.
✅ Global Shipping
✅ Customization Options
✅ Technical Support Available 24/7
If you want big drilling power packed into a small, portable machine, YG’s small DTH drilling rigs are your best bet. They’re efficient, rugged, versatile, and built to help you drill smarter — not harder.
Ready to take your drilling projects to the next level? Get a quote today from YG Machinery!
FAQs About YG Small DTH Drilling Machines
1. How deep can a small DTH drilling machine drill?
Depending on the model, YG’s small DTH drills can reach depths of 20 to 100 meters.
2. What kind of rocks can YG DTH drills handle?
They are designed for hard rock formations like granite, basalt, limestone, and more.
3. Do I need an air compressor with a small DTH machine?
Yes, an external air compressor is typically required to drive the DTH hammer efficiently.
4. Can YG small DTH drilling rigs be customized?
Absolutely! YG offers customized solutions based on your project needs.