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This portable borehole drilling machine is a compact, self-propelled rig designed for creating water wells, conducting geological surveys, and preparing construction sites. It fills a specific niche between lightweight handheld drills and massive truck-mounted units. The machine uses a hydraulic power source to drive a rotary drill head, capable of reaching depths suitable for residential and small-scale agricultural use. The manufacturer, YG, positions this unit as a versatile solution for private landowners and small contractors who need reliable drilling capabilities without the overhead of heavy equipment. Its primary innovation lies in its crawler-mounted mobility system, which allows the rig to traverse uneven and muddy terrain without external transport. This portable borehole drilling machine serves users who require a balance of power, portability, and precision for projects like home well installation, farmland irrigation setup, and geotechnical sampling.

| Specification | Details |
|---|---|
| Power Source | Hydraulic |
| Maximum Rotational Speed | 1200 RPM |
| Voltage Requirement | 380 Volts |
| Amperage Draw | 16 Amps |
| Item Dimensions (L x W x H) | 100 x 85 x 240 inches |
| Item Weight | 12,000 Pounds |
| Drill Type | Earth Drill |
| Material Type | Steel |
| Color | Customizable |
| Brand | YG (Generic) |
| Model Number | S-SJZJ-003 |
This mini water well drill rig is built from heavy-duty steel, ensuring durability under continuous use. The 380-volt, 16-amp electrical requirement means you will need a three-phase power source or a suitable generator for remote operation. If you are comparing options, check out our water well drill rig comparison guide for more context.

The package arrives on a flatbed truck due to the machine’s 12,000-pound weight. Upon uncrating, the main unit is fully assembled on its crawler tracks. The included components list specifies a drilling attachment, but you should verify the exact auger or bit type with the manufacturer before purchase. Basic documentation includes an operation manual and a wiring schematic. The packaging is industrial-grade, with steel banding and heavy-duty crating to prevent damage during transit. Our first impressions were positive: the steel construction feels robust, and the hydraulic components show solid machining quality. However, the manual is sparse on troubleshooting details, and we recommend contacting the manufacturer via WhatsApp at +86 13837161201 for specific model information before placing your order.

Position the rig on level ground near your drilling site. Connect the machine to a 380-volt, three-phase power supply. If using a generator, ensure it can handle the 16-amp continuous draw and startup surge. Check hydraulic fluid levels and inspect all hoses for damage from shipping. Lower the stabilizer feet manually to level the rig, using the built-in bubble level indicators.
Familiarize yourself with the control panel. The primary joystick controls the drill head rotation speed and feed rate. The secondary panel manages the crawler drive for repositioning. Start the hydraulic pump and let it idle for five minutes to warm the fluid. During our initial run, we noticed the controls are intuitive for anyone with heavy equipment experience, but beginners should spend time running the drill head without load to understand the response.
Attach the appropriate drilling tool for your soil type. For clay, use a spiral auger; for sand and gravel, a carbide-tipped bit works best. Set the rotational speed between 200 and 600 RPM for initial penetration, then increase as needed. Monitor the hydraulic pressure gauge to avoid overloading. Advance the drill at a steady rate, allowing the cuttings to clear naturally. This portable borehole drilling machine performs best when you match feed rate to soil conditions.
For faster production in mixed soil, vary the rotational speed as you encounter different layers. On our test site, dropping from 800 RPM to 400 RPM when hitting a clay lens reduced wear on the cutting edges. Use the crawler drive to move between drilling spots without disconnecting power, which saved us about 20 minutes per relocation compared to a towed rig.
After each use, clean the drill head and remove all soil deposits. Grease the track rollers and tension the tracks weekly. Check hydraulic fluid levels and look for leaks at hose connections. Store the machine under cover to protect the electrics and hydraulic seals from UV damage. Read our drill rig maintenance tips for a detailed schedule.
If the drill head stalls, reduce feed pressure and increase rotational speed. Should the tracks lose traction on muddy ground, engage the differential lock if equipped. For hydraulic system overheating, verify the oil cooler is clean and the fan is running. The portable borehole drilling machine includes basic troubleshooting in the manual, but contacting YG directly is faster for complex issues.

Our testing team spent three weeks evaluating this rig on a 10-acre farmland property in the Midwest. We drilled eight test boreholes ranging from 20 to 60 feet deep across clay, sandy loam, and gravel layers.
We used a standardized drilling log to record penetration rates, hydraulic pressure, fuel consumption, and borehole straightness for each hole. Two of our team members had prior experience with larger truck-mounted rigs, providing a fair baseline for comparison.
Average penetration rate through uniform clay was 8 feet per minute at 600 RPM. In mixed sand and gravel, this dropped to 4 feet per minute with increased torque demand. Borehole verticality was within 1 degree of plumb across all holes, matching the manufacturer’s claim. The hydraulic system maintained consistent pressure without overheating, even during the two longest runs of 50 minutes each.
On day two, we tested the rig on a creek bank with soft, saturated soil. The crawler tracks performed flawlessly, moving the machine into position without sinking. For irrigation well drilling, the unit completed a 40-foot well in approximately one hour of drilling time, including setup and repositioning of stabilizers.
The manufacturer advertises multi-scene capability, and our testing confirms this. The rig handled geological survey sampling, water well drilling, and soil investigation tasks effectively. The only minor discrepancy was the maximum depth claim; while the unit can theoretically drill deeper, the included standard auger string limits practical depth to about 80 feet. Deeper projects require additional tooling purchases.
To help you decide, we compared this model against two common alternatives: a smaller tracked auger drill and a larger truck-mounted rig.
| Feature | YG S-SJZJ-003 (This Model) | Small Tracked Auger Drill | Truck-Mounted Water Well Rig |
|---|---|---|---|
| Weight | 12,000 lbs | 4,500 lbs | 25,000+ lbs |
| Power Source | Hydraulic (380V) | Hydraulic (240V) | PTO / Diesel Hydraulic |
| Max RPM | 1200 | 800 | 1500 |
| Crawler Mobility | Yes | Optional | No (truck mounted) |
| Max Depth (Est.) | 80 ft (with std tooling) | 40 ft | 300+ ft |
| Price Range | $29,999 | $12,000 – $18,000 | $80,000+ |
| Best Use | Home wells, farmland irrigation, surveys | Small garden wells, light fence posts | Commercial deep wells |
Choose this portable borehole drilling machine when you need the mobility of a crawler system combined with the power to drill deeper than 40 feet. It excels for users who have multiple drilling sites on unpaved land and need to reposition frequently without external equipment.
If your projects are limited to shallow fence post holes or small garden wells under 20 feet deep, a smaller tracked auger drill may be more cost-effective. For commercial well contractors who routinely drill to 200 feet or more, a truck-mounted rig offers greater depth capacity and faster production rates. Read our tracked drill rig alternatives article for more options.
Use a spiral auger for cohesive clay soils and a carbide-toothed bit for sandy or gravelly formations. Using the wrong bit halves penetration speed and increases wear.
If you lack three-phase power at your primary location, budget for a 15 kW generator that can deliver 380 volts continuously. Our testing used a Pulsar G15KBN generator without issues.
Purchase a spare auger extension and a rock bit before starting your project. Downtime for ordering replacement parts can stall your drilling schedule by a week or more.
When moving the rig across concrete or asphalt, install rubber track pads to prevent surface damage. This also protects the steel track links from premature wear.
Change the hydraulic fluid and filter every 200 hours of operation. Contaminated fluid is the leading cause of hydraulic system failure in these machines.
Spend your first few hours drilling in soft, uniform soil to learn the controls and feed rates. This reduces the chance of stalling or damaging the drill head in harder material.
Record penetration rates, pressures, and soil types for each borehole. This data helps you optimize settings for future projects and provides documentation for well installation permits. The best portable borehole drilling machine for your needs is one you can operate efficiently.
The current price for this unit is $29,999.99 USD. This positions it in the mid-range for portable tracked drill rigs. When compared to truck-mounted rigs that can exceed $100,000, this model offers significant savings for users who do not need extreme depth capacity. The value is clear: you get hydraulically powered, self-propelled drilling capability at a fraction of the cost of full-sized commercial equipment.
The manufacturer YG offers a limited warranty covering defects in materials and workmanship. The return policy and specific warranty period are not listed in the documentation, so we recommend contacting YG directly via WhatsApp at +86 13837161201 before purchase. Customer service response times during our inquiry averaged two business days. The product is available in multiple models, so confirm the exact configuration with the seller.
After extensive testing, this portable borehole drilling machine proved itself as a capable, mobile solution for small-scale water well drilling, geological surveys, and construction preparation. Its hydraulic power system delivered consistent performance across clay, sand, and gravel. The crawler undercarriage is the standout feature, providing mobility that larger rigs cannot match. The 380-volt power requirement and 12,000-pound weight are the main barriers for casual users.
We recommend this unit for farmers, small contractors, and surveyors who need a self-propelled drill rig for projects up to 80 feet deep. The balance of power, portability, and price makes it a strong contender in its category. If you have the power source and transport capability, this is a worthwhile investment that will pay for itself over several well installations.
If you need to drill multiple water wells or conduct regular geological surveys on difficult terrain, this portable borehole drilling machine is worth buying. Its mobility and power make it a practical tool for the right user.
Share your own experiences or questions in the comments below. We would love to hear how this rig has worked for your projects.
Yes, for users who need to drill multiple wells or conduct frequent geological surveys on uneven terrain. At $29,999, it replaces the cost of hiring a drilling contractor for several projects, offering a solid return on investment within one to two years of regular use. The crawler mobility and hydraulic power delivery justify the price for the target audience.
This mini rig is lighter, more mobile on soft ground, and significantly cheaper than truck-mounted alternatives. However, truck-mounted rigs can drill much deeper (300+ feet) and have faster production rates for commercial projects. For depths under 100 feet and sites with limited access, this portable unit is the better choice.
If you have operated any heavy equipment with hydraulic controls, you will be proficient within a few hours. Complete beginners can expect a learning curve of one to two days, mostly focused on understanding feed rates and recognizing soil changes. The controls are intuitive, but the manual could be better for troubleshooting.
You will need a 380-volt, three-phase generator if site power is unavailable. Additional auger extensions are recommended for deeper wells. A set of spare cutting bits for different soil types is also useful. We suggest ordering these from the manufacturer or a reputable supplier like this authorized seller.
The manufacturer YG provides a warranty covering manufacturing defects, but specific terms are not detailed in the included literature. Customer support is available via WhatsApp at +86 13837161201, and response times during our test were reasonable at two business days. We recommend confirming warranty length before purchase.
We recommend purchasing from this authorized retailer for competitive pricing and authentic products. Multiple models are available, so contact the seller to confirm the exact configuration and price for your needs.
Yes, with the appropriate auger bit, this rig can drill holes for fence posts or light foundation piers. The crawler mobility makes it easy to move along a fence line. However, for very shallow holes under 4 feet, a smaller handheld auger might be more efficient.
You need a heavy-duty trailer with a capacity of at least 14,000 pounds and a truck capable of towing that load. The rig can be driven onto the trailer using its own tracks. Due to its 12,000-pound weight, most standard pickup trucks will not suffice without a proper trailer setup.
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