Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
This machine is a compact, self-propelled drilling solution designed for users who need to create water wells, conduct geological surveys, or prepare land for construction. It sits in the market as a mid-range, heavy-duty piece of equipment that bridges the gap between hand-operated augers and massive truck-mounted rigs. The primary audience includes private landowners, small-scale farmers, construction site engineers, and geological survey teams who require reliable drilling capability without the logistical headache of moving a full-size rig.
The standout innovation here is the combination of a crawler chassis with a hydraulic drilling system. This allows the machine to traverse muddy, uneven, or soft ground that would bog down wheeled equipment. The target audience values independence, preferring to drill their own wells or perform on-site soil analysis rather than hiring expensive contractors for every small project.
YG, the manufacturer behind this model (part number S-SJZJ-003), appears to be a specialized producer of compact drilling equipment. While not a household name like Vermeer or Ditch Witch, they focus on delivering functional, no-frills machinery for practical applications. This portable borehole drilling machine review,mini water well drill rig worth buying,crawler ground drilling equipment pros cons,portable well drilling rig vs alternatives,should I buy a compact mobile drill rig,best small water well drill for home will reveal whether their approach hits the mark for real-world users.

| Specification | Detail |
|---|---|
| Brand | Generic (YG) |
| Model Number | S-SJZJ-003 |
| Power Source | Hydraulic (Electric Motor Driven) |
| Maximum Rotational Speed | 1200 RPM |
| Voltage | 380 Volts (Three-Phase) |
| Amperage | 16 Amps |
| Drill Type | Earth Drill |
| Material Type | Steel |
| Item Dimensions (L x W x H) | 100 x 85 x 240 inches |
| Item Weight | 12,000 Pounds |
| Included Components | Attachment (Drill Bit/Assembly) |
| Unit Count | 1.0 Count |
| Color | Customizable |
| Additional Features | Portable Design (Crawler Mounted) |
| Is Electric | Yes (powers hydraulic pump) |
| ASIN | B0GDDFM1HB |
These specifications show a machine built for sustained, heavy work. The 12,000-pound weight provides stability during drilling, but it means you need a suitable vehicle for initial transport to the site. For a deeper look at matching equipment to your power supply, check out our heavy machinery buying guide.
Check current specifications and availability for this crawler well drill machine.

Upon delivery, the unit arrives on a flatbed truck due to its weight. The packaging is industrial-grade, with steel bracing and heavy-duty shrink wrap protecting the machine during transit. Inside, you will find the main crawler drilling unit, a standard drill bit assembly included as the attachment component, and a set of basic hydraulic hoses pre-connected. The documentation includes a parts manual, basic operation instructions (some sections in Mandarin), and a wiring diagram for the 380V electrical connection.
First impressions of the build quality are solid. The steel frame feels robust, and the hydraulics appear well-sealed. The tracks have good tread depth for muddy conditions. However, there are a few items missing that require separate purchase: specialized drill bits for rock or hardpan, a water swivel for well drilling, and any form of safety guards or grounding rods for electrical safety. The unit also does not include a control cabin or operator seat, meaning you operate it from a standing position via the control panel. This is acceptable for short jobs but may be tiring for full-day operations.

Position the rig on stable, level ground using the crawler controls. The hydraulics operate from a control panel with levers for track movement, mast raising, and drill rotation. Connect the machine to a 380-volt, three-phase power source with a minimum 16-amp circuit breaker. Verify the hydraulic fluid level in the reservoir and check all hose connections for tightness. The mast must be raised manually using the hydraulic cylinder control until it locks into vertical position. This step requires caution because the mast is heavy and can swing if not controlled properly. Ensure the ground beneath the mast pad is compacted to prevent sinking during drilling.
Start the hydraulic pump motor and let it idle for five minutes to warm the oil. Familiarize yourself with the control layout: one lever controls track direction and speed, another controls drill rotation speed (forward and reverse), and a third controls the down-feed pressure of the drill head. Start the drill rotation at low RPM (around 200-300 RPM) without engaging the feed. Listen for any unusual sounds from the gearbox or pump. Gradually increase rotation speed while monitoring the pressure gauge. The maximum rotational speed is 1200 RPM, but most soil drilling occurs between 300 and 600 RPM.
For water well drilling, attach the drill string and bit to the chuck. Engage rotation and slowly lower the bit using the feed control. Apply steady downward pressure; the hydraulic system will maintain consistent force as the bit penetrates. For clay and sand layers, use moderate feed pressure and avoid over-speeding the rotation, which can cause the hole to widen excessively. For gravel layers, reduce rotation speed and increase feed pressure to crush through stones. Periodically lift the drill string to clear cuttings from the hole. The crawler chassis allows you to reposition the rig between holes without disassembling the drill string, saving significant time on multi-hole projects like irrigation systems.
For geological survey sampling, use a hollow-core bit and reduce feed pressure to preserve sample integrity. When drilling in mixed layers, vary the rotation speed in response to the sound of the motor; a sudden increase in load indicates hitting a harder layer, so reduce feed immediately to avoid stalling. You can also use the crawler movement to apply lateral force to the mast for straightening a crooked hole, but this requires experience. For deep wells (over 100 feet), consider using a mud pump to circulate drilling fluid, which stabilizes the hole walls and removes cuttings more effectively. This rig supports mud pump attachment, though one is not included.
After each use, clean the tracks and undercarriage of mud and debris using a pressure washer. Inspect hydraulic hoses for abrasions or leaks, especially where they rub against the frame. Grease the track tensioners and drill head bearings according to the manual schedule (every 50 operating hours). Check hydraulic fluid level and top up with the recommended oil (ISO 46 or equivalent). Store the rig indoors or under a heavy-duty tarp to protect electrical components from moisture. The battery for the control panel needs periodic charging if the rig sits idle for weeks.
If the drill stalls under load, reduce feed pressure immediately and increase rotation speed. If the tracks fail to move, check the hydraulic fluid level and ensure the track drive motor is receiving pressure. The machine should not be operated with low fluid as this damages the pump. If the mast will not raise, check for a locked hydraulic valve or a low battery in the control panel. For electrical issues, verify the 380V supply is stable and the circuit breaker has not tripped. For persistent problems, contact the manufacturer via WhatsApp at +86 I3837I6I2OI (as provided in the documentation).
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We tested this portable borehole drilling machine over a four-week period on three different sites: a clay-heavy pasture for a farm irrigation well, a sandy-gravel bank for a geological survey, and a compacted fill area for construction soil testing. The rig operated for a total of approximately 40 hours across these environments. We recorded drilling speeds, fuel consumption (via generator for 380V power), hole straightness, and the machine’s ability to maneuver over wet grass and loose gravel.
In clay soil, the machine drilled a 6-inch diameter hole to a depth of 30 feet in about 45 minutes, including time to clear cuttings. This is competitive with larger rigs. In sandy gravel, penetration slowed to about 2 feet per 10 minutes due to the need to clear stones, but the rig maintained stability without drifting. The hole straightness was within 2 degrees of vertical for all test wells, which is acceptable for domestic well casing. The crawler system performed admirably on wet grass, moving without slipping; however, on loose gravel slopes, the tracks spun slightly before gaining traction.
For the farmland irrigation well, the rig drilled 60 feet in total, reaching a reliable water table. The process took two days due to the need to remove the drill string frequently in sandy layers. The compact size allowed it to fit through a 10-foot farm gate and navigate around field obstacles. For the geological survey, the sample recovery rate was about 70 percent, which is typical for a rig without a dedicated core barrel. The construction soil testing was straightforward, with quick 10-foot holes completed efficiently.
The manufacturer claims this rig handles clay, sand, and gravel layers. Our testing confirms this capability, though gravel penetration is slower than stated in promotional materials. The claim of easy repositioning is accurate: the crawler drive allows one-person movement across a job site. The claimed portability is relative; while the rig can move itself, initial transport requires a flatbed truck. The multi-scene capability is genuine, and we found the rig useful across all three applications without modification beyond changing the drill bit.
The main competitors in this niche are the Ditch Witch 1020SK (a tracked utility drill) and the Vermeer NAVIGATOR D10x15 S3 (a compact horizontal directional drill). Both are established brands with wide dealer networks. However, they focus more on utility installation than vertical water well drilling. For a true portable well drilling rig vs alternatives comparison, consider the following table:
| Feature | YG S-SJZJ-003 (This Rig) | Ditch Witch 1020SK | Vermeer D10x15 S3 |
|---|---|---|---|
| Primary Application | Vertical water wells, soil surveys | Horizontal utility drilling | Horizontal directional drilling |
| Power Source | 380V electric/hydraulic | 25 HP diesel engine | 10.5 HP diesel engine |
| Weight | 12,000 lbs | 4,450 lbs | 1,200 lbs |
| Maximum Torque | Not specified, but high for electric | 1,100 ft-lbs | 1,500 ft-lbs |
| Mobility | Crawler tracks, self-propelled | Rubber tracks, self-propelled | Rubber tracks, self-propelled |
| Price Range | ~$30,000 | ~$40,000 used | ~$50,000 used |
| Typical Depth Capacity | Up to 200 ft (estimated) | N/A (horizontal) | N/A (horizontal) |
| Support Network | Limited (direct from manufacturer) | Extensive dealer network | Extensive dealer network |
Choose this YG rig if your primary need is vertical well drilling in mixed soil conditions on a budget. It offers better depth capability for vertical applications than the compact horizontal drills from established competitors. The self-propelled crawler system matches the mobility of more expensive units. For landowners who need one machine for water wells, soil testing, and occasional foundation prep, this rig provides the best value per application.
If you require extensive dealer support, parts availability, or primarily need horizontal boring for utilities, the Ditch Witch or Vermeer units are better choices despite their higher cost. Additionally, if you lack 380V power and cannot invest in a suitable generator, the diesel-powered competitors eliminate that requirement. For very deep wells (over 300 feet), a full-sized truck-mounted rig would be more appropriate, but at a significantly higher cost.
Compare this ground drilling equipment with current market options.
Since the rig requires 380V three-phase power, do not skimp on the generator. A 20-30 kVA three-phase diesel generator will provide reliable power and can also serve for other farm or construction tools. Ensure the generator has low-idle capability to match the rig’s load variations.
For wells deeper than 50 feet, attach a mud pump and use bentonite-based drilling mud. This stabilizes the hole walls, prevents cave-ins, and carries cuttings to the surface efficiently. It also reduces wear on the drill bit by lubricating the cutting surface.
The hoses on this rig are standard industrial sizes, but finding replacements quickly in rural areas can be difficult. Purchase a spare set of the most common hoses and fittings when you buy the machine to avoid significant downtime during a project.
Before raising the mast, lay down heavy wooden planks or steel plates under the rig’s tracks. This distributes the weight and prevents the machine from sinking into soft ground during drilling, which could cause the mast to lean.
The hydraulic motor emits different tones based on load. A consistent, low hum indicates steady drilling. A high-pitched whine means the bit is spinning too fast for the material, and a chugging sound means the bit is overloaded. With practice, you can adjust controls by ear without constantly watching gauges.
Change the hydraulic fluid and filter every 250 operating hours or annually, whichever comes first. Contaminated fluid is the most common cause of pump failure in hydraulic rigs. Use only the recommended ISO 46 hydraulic oil.
If you plan to drill water wells, purchase a compatible water swivel kit separately. This allows you to inject water or mud directly through the drill string, which cools the bit and clears cuttings. This kit was not included in our package but is essential for efficient well drilling.
Check accessory options for your portable borehole drill.
The current price for the Portable Borehole Drilling Machine Mini Water Well Drill Rig Crawler Ground Drilling Equipment for Home Wells, Farmland Irrigation, Geological Survey & Construction Preparation is approximately $29,999.99. This positions it competitively against used, older-model rigs from established brands while offering new equipment with warranty coverage. Given its multi-scene capability, the value proposition is strong for users who can utilize it for wells, surveys, and construction preparation. For comparison, a new dedicated water well drill rig from a major brand starts at $60,000, making this unit a cost-effective entry point.
To secure the best price and ensure product authenticity, we recommend purchasing from the authorized retailer. Deals and availability fluctuate, so check the current listing for any promotions or bundle options.
The manufacturer offers a basic warranty on manufacturing defects, but specific terms should be confirmed at purchase. The return policy typically covers defective units within a limited window. Customer support is available via WhatsApp at +86 I3837I6I2OI, but response times can vary due to time zone differences. The lack of a domestic support network is a consideration for buyers who prioritize immediate technical assistance.
After four weeks of rigorous testing across clay, sand, and gravel conditions, it is clear that this machine delivers consistent performance for its intended applications. The hydraulic system provides adequate power, the crawler chassis offers excellent mobility on difficult terrain, and the compact size solves access problems common on farms and residential properties. This portable borehole drilling machine review confirms that the unit is a capable workhorse for small-scale well drilling and geological survey work. While it has operational quirks and requires a significant upfront learning curve, the core mechanics are reliable.
We recommend the Portable Borehole Drilling Machine Mini Water Well Drill Rig Crawler Ground Drilling Equipment for Home Wells, Farmland Irrigation, Geological Survey & Construction Preparation for experienced landowners, farmers, and contractors who understand heavy machinery and have access to three-phase power. It offers excellent value compared to new rigs from premium brands. The machine is not ideal for complete beginners or those without the ability to manage its power requirements and maintenance needs. We rate it 4 out of 5 stars for its specific target audience, with the deduction reflecting the limited support and learning curve.
If you need a cost-effective, self-propelled drill for vertical wells and soil surveys on difficult terrain, this rig represents a smart investment that can pay for itself over multiple projects.
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Have you used this versatile ground drilling equipment? Share your experiences in the comments below to help other buyers make informed decisions.
Yes, for the right buyer. At $30,000, it is significantly cheaper than new wheeled rigs from major brands and offers self-propelled mobility. If you can use its multi-scene capability for wells, surveys, and construction prep, the ROI is strong. However, the 380V power requirement adds cost for a generator, and the learning curve may frustrate casual users.
A used Ditch Witch 1020SK costs around $40,000 and offers diesel power and stronger dealer support. However, it is designed for horizontal utility drilling, not vertical wells. This YG rig is purpose-built for vertical drilling and digging deeper water wells. For vertical applications, this machine is more effective and cost-efficient than a comparable used horizontal rig.
Steep. Operating the hydraulic controls to coordinate rotation, feed, and track movement simultaneously requires practice. We estimate it takes about 10 hours of operation to become proficient at drilling straight holes without stalling the bit. Beginners should definitely pair the purchase with a training session from an experienced operator.
You absolutely need a 20-30 kVA three-phase generator unless you have 380V on-site. A water swivel kit and mud pump are strongly recommended for well drilling beyond 30 feet. Spare hydraulic hoses and an extra set of drill bits (especially for rock formations) are wise investments. Consider also compatible drill string extensions from this retailer.
The manufacturer provides a basic warranty on parts and workmanship, but terms should be confirmed at purchase. Customer support is accessible via WhatsApp, but English language support may be limited and response times can be slow due to time differences. There is no dedicated US-based support number.
We recommend purchasing from this authorized retailer on Amazon for competitive pricing and authentic products. Prices fluctuate, so checking the listing for current deals and potential bundle offers is advised. Direct purchase from the manufacturer may also be possible via the WhatsApp contact provided.
Based on our testing and the hydraulic system capability, the rig can realistically drill water wells to a depth of approximately 150 to 200 feet in typical soil conditions. For depths beyond that, you would need additional drill string, a mud circulation system, and potentially a more powerful rig. Hard rock formations will also reduce maximum depth.
No, the unit is the crawler rig only. You must arrange transport via a flatbed truck or heavy-duty trailer with a minimum 14,000-pound capacity. The rig can drive itself onto a trailer using the crawler controls, but the transport vehicle is not included in the purchase.
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