

Small well drilling rig is lightweight, modular drilling equipment designed for drilling water wells to depths of 100-200 meters for civilian, agricultural, and small-scale engineering purposes. Unlike large industrial drilling rigs, their core focus is on portability, efficiency, and low cost, perfectly addressing decentralized water supply needs. They are essential drilling equipment for families, small farms, remote communities, and small engineering teams. As a mainstream mini borehole drilling machine, it integrates hydraulic, mechanical, and circulation systems, allowing for rapid deployment in confined spaces. Basic operations can be performed by a single person, significantly reducing the barrier to entry and costs associated with drilling.If you are also interested in small water well drilling rigs, please contact us immediately for more product information.
Small Well Drilling Rig Parameter
| 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 |


Working Principle of Small Well Drilling Rigs
Small water well drilling rigs use hydraulic or mechanical drives for underground rotary cutting and drilling operations. Their workflow is as follows:
- Power Output: A diesel/electric engine drives a hydraulic pump, generating high-pressure oil to rotate the power head and activate the feed cylinder.
- Cutting and Crushing: The power head drives the drill pipe and drill bit to rotate at high speed, using axial pressure to cut and crush soil, sandstone, or weathered rock formations.
- Cuttings Removal: A mud pump or air compressor is simultaneously started, sending mud/compressed air through the drill pipe’s central channel to the bottom of the hole. This cools the drill bit and carries the cuttings back to the surface, creating a circulation and ensuring hole wall stability.
- Drill Pipe Connection: As drilling deepens, the drill pipe is automatically connected via a hydraulic unloader until the designed depth is reached. After drilling is complete, the drill string is retrieved, completing the well.
The entire system is controlled by load sensing, automatically adjusting the speed and torque to ensure stable and efficient operation in different geological formations.


Features and Advantages of Small Water Well Drilling Rigs
1. Lightweight and Flexible, Easy to Relocate
The entire machine typically weighs less than 500kg, uses a wheeled or tracked chassis, and can be towed by pickup trucks, motorcycles, or tricycles, completing on-site deployment within 30 minutes. Its compact design allows it to enter confined spaces such as courtyards, mountains, and greenhouses, solving the problem of large drilling rigs being unable to access the site.
2. Powerful and Versatile
Equipped with a 15-30HP high-efficiency engine, with torque reaching 3000-8000N·m, it can easily handle complex strata such as clay, sand, gravel, pebbles, and weathered rock. It comes standard with a variety of drill bits, allowing for different drill bits to be selected according to different geological conditions. It can switch between mud/air circulation processes with a single button, suitable for both soft and hard strata.
3. Simple Operation and Low Maintenance Costs
The integrated control panel has a clear button layout; independent operation can be achieved after 1-2 days of training. Modular structure, universal and inexpensive wear parts, and routine maintenance requiring only oil and filter checks significantly reduce operating costs.
4. High efficiency and energy saving, outstanding cost-effectiveness
Compared to large equipment, fuel/energy consumption is reduced by more than 50%. Single-hole drilling efficiency reaches 40-60 meters/day, with short well completion cycles and rapid return on investment. The borehole drilling machine offers excellent value for money, making it an ideal choice for individuals and small and medium-sized enterprises.


Core Application Scenarios of Small Well Drilling Rigs
Defining the application scenario is key to selecting a Small Water Well Drilling Rig. Different scenarios have different requirements for equipment depth, power, and portability, as detailed below:
- For Homes/Villas: For self-built houses in rural or suburban areas, drilling 50-100 meter wells for domestic water supply to replace municipal water supply requires lightweight, low-noise, and easy-to-operate equipment. Electric or small diesel-hydraulic rigs are sufficient.
- Agricultural Irrigation: Small farms, orchards, and vegetable greenhouses require 100-150 meter wells for irrigation and aquaculture. Sufficient power and high efficiency are required, making diesel-hydraulic rigs the preferred choice.
- Temporary Water Supply for Small Projects: For temporary water supply during construction, road work, and mining, where sites may be narrow or rugged, portable and easily relocate equipment is required. Wheeled or tracked diesel-hydraulic drilling rigs are more adaptable.
- Centralized Water Supply in Remote Areas: Remote villages, schools, and camps without municipal water supply require batch well drilling. Stable equipment with a low failure rate and adaptability to complex terrain are essential; tracked small water well drilling rigs are more suitable.
- Shallow Geological Exploration: Small-scale geological exploration, foundation pit dewatering, and geothermal well construction require high-precision equipment capable of drilling hard rock. Mid-to-high-end diesel-hydraulic drilling rigs can meet these needs.
YG Small Well Drilling Rig Frequently Asked Questions (FAQ)
1. Does the borehole drilling machine price include accessories? Is customization supported?
The price of all models includes the main unit, standard drill pipe, drill bit, mud pump, and other core accessories. It supports customization; the drill pipe length can be increased, an air compressor can be selected, and the engine model can be changed to meet other needs.
2. Is it difficult to operate? Is training and after-sales service provided?
Operation is simple and can be completed by a single person. It comes with a bilingual (Chinese and English) operation manual and video tutorials. On-site training is available in China, and one-on-one online guidance is provided overseas. The whole machine has a one-year warranty, excluding vulnerable parts. Global parts warehouse, shipping within 48 hours.
3. What is the equipment’s fuel/energy consumption? Is the maintenance cost high?
The electric version only requires electricity and has low energy consumption; the diesel version has a fuel consumption of 8-12 liters per 100 kilometers, saving more than 50% compared to large equipment; maintenance is simple, and the price of wear parts (drill bits, filters) is low, resulting in low monthly maintenance costs.

