

A portable borehole drilling machine is exactly what the name suggests: a drilling rig designed to be moved easily from one site to another. Compact yet powerful, it is built for terrains where large, stationary rigs simply cannot go.
The YG series portable borehole drilling machine offers two models: YG-240-22P with 22HP diesel power and YG-240-30P with 30HP. Both models reach 200 meters in depth, weigh just 200kg, and feature fully automatic screw thread rod change. For contractors looking for a small borehole drilling machine that combines portability with real drilling power, the YG series provides a practical, proven solution. Whether you need a small water well drilling rig for farm irrigation or a portable well drilling rig for sale for rural residential water supply, the YG series has a model matched to your requirements.
Portable Borehole Drilling Machine Parameters:
| Model | YG-240-22P | YG-240-30P |
| Dimension | 1450*1550*1970mm | 2000*1230*2090mm |
| Weight | 200kg | 200kg |
| Drill rod diameter | 42mm | 51mm |
| Drill rod length | 1.5m/unit | 1.5m/unit |
| Rod change method | Full automatic screw thread | Full automatic screw thread |
| Max drilling depth | 200m | 200m |
| Diesel engine power | 22HP | 30HP |
| Drilling hole diameter | Within 280mm | 100mm-240mm |
| Lifting height | 2.5m | Max 2.5m |
| Lifting force | 1000kg | 2000kg |


Why Choose YG Portable Borehole Drilling Machine?
- Lightweight and transportable. Both YG models weigh just 200kg. The small borehole drilling machine is compact enough to be transported in a pickup truck or moved by hand. For contractors working in remote areas with limited road access, this portability is essential.
- 200-meter drilling depth. Despite its compact size, the YG series reaches 200 meters in depth—sufficient for most agricultural, residential, and small commercial water supply projects. The ability to reach deep groundwater sources in a lightweight package is what makes this a true small water well drilling rig with big capabilities.
- Fully automatic screw thread rod change. The YG series uses a fully automatic screw thread rod change system. The operator does not need to manually thread each rod connection—the machine handles it automatically. This reduces manual labor, speeds up the drilling process, and improves drilling continuity. For a small team drilling multiple wells, this feature translates directly to faster project completion.
- Diesel engine power. The YG-240-22P delivers 22HP. The YG-240-30P delivers 30HP. Diesel power means the machine operates independently without external electricity—essential for remote job sites where grid power is unavailable.
- Simple operation, fast learning curve. The small water well drilling rig is designed for easy operation. Small teams can learn to handle it in a short time.
- Lower investment, good economic benefit. Compared to traditional large drilling rigs, the YG series is smaller in size and lower in investment—ideal for small and medium-sized drilling projects.


Automatic Rod Change: Why This Feature Matters
Rod changes are one of the most time-consuming parts of any drilling operation. Every time the drill reaches the end of a rod section, the operator must stop, disconnect the rod, add a new section, and reconnect. Each stop adds minutes to the total drilling time.
The YG series portable borehole drilling machine uses a fully automatic screw thread rod change system. The machine handles the connection and disconnection of rods automatically.
Time saved. Manual rod changes on a 200-meter well might require dozens of stops. Automatic rod change eliminates these delays, reducing total drilling time significantly.
Labor saved. The operator does not need to wrestle with heavy rod connections. One person can manage the entire drilling process, reducing crew size and labor costs.
Consistent quality. Automatic threading ensures each connection is made with consistent torque, reducing the risk of loose connections or rod damage during drilling.
3 Questions to Ask Before Buying a Borehole Drilling Machine
Many customers buy the wrong drill rig not because the machine is bad, but because they did not figure out their real needs before purchasing. The YG series covers a range of applications, but choosing the right model starts with answering three simple questions.
1. How deep do you need to drill?
Shallow groundwater sits at 30-50 meters. Medium-depth wells run 80-120 meters. Deep wells go 150 meters and beyond. The YG portable borehole drilling machine reaches a maximum depth of 200 meters—covering everything from household water to farm irrigation.
If the customer only needs a 50-meter well, the 22HP model is more than enough. If the customer needs a 150-meter well or deeper, the 30HP model is the better choice. For deep wells, greater lifting force and larger rod diameter reduce the risk of hole problems.
2. What is your ground condition?
Soft ground (clay, sand) is easy to drill and places less demand on the machine. Hard ground (weathered rock, gravel layers, rock interlayers) requires more torque and lifting force.
The 22HP model suits soft ground and light weathered rock. The 30HP model handles hard ground and rock layers. For large-diameter deep wells, even in soft ground, the 30HP model is recommended—a larger hole means a heavier drill string, requiring more lifting force.
3. Where are you working?
Remote mountain areas, farmland, and rural villages often lack three-phase power. Only diesel-powered rigs work there. The YG portable borehole drilling machine runs on diesel—no external power needed. Fill the tank and work all day. This is a machine designed for fieldwork, not factory floors.
If the work site has stable grid power, diesel is still often preferred for its independence. If the site is remote, diesel is the only practical choice.
Once you have answered these three questions, the choice between 22HP and 30HP becomes clear. The 22HP model is the entry-level option for shallow wells in soft ground. The 30HP model is the upgrade for deeper wells, harder ground, and larger holes. Both weigh the same and share the same core design—the difference is power and capability for more demanding conditions.


Portable Well Drilling Rig For Sale
As a manufacturer focused on field‑proven drilling hardware, YG helps you sort through specification trade‑offs, so you pick the correct configuration for your job profiles. Share details including your target well depth, expected borehole diameter and common ground formation types with our team. Submit your inquiry, and we deliver targeted configuration guidance to support your next water‑drilling project.

