A deep well drilling rig with vertical spindle structure is a versatile drilling machine built for two major tasks: water well construction and geological core sampling. Unlike dedicated single-purpose machines that only handle one type of work, this unit switches between borewell drilling and rock coring by changing matched accessories. Operators use it primarily for domestic and agricultural water well projects, and can also deploy it for shallow to medium-depth geological exploration when needed.
Many contractors searching for water well drilling equipment for sale overlook the value of multi-function design. A machine that only drills water wells sits idle during periods when exploration projects are available. A multi-purpose rig keeps your equipment working year-round across different project types. For teams that want to expand their service offerings without buying separate machines, this type of hydraulic water well drilling rig delivers clear practical advantages.
Deep Well Drilling Rig Technical Specifications
| Model | YG-180 | YG–200 | YG–300 | YG–300A | YG–400 | YG–600 |
| Drilling hole diameter | 140-254mm | 140-305mm | 140-325mm | 140-325mm | 140-350mm | 140-350mm |
| Drilling depth | 180m | 200m | 300m | 300m | 400m | 600m |
| One-time advance length | 3.4m | 3.4m | 6.6m | 3.4m | 6.6m | 6.6m |
| Walking speed | 2.5km/h | 2.5km/h | 2.5km/h | 2.5km/h | 2.5km/h | 2.5km/h |
| Climbing angles (Max.) | 30 | 30 | 30 | 30 | 30 | 30 |
| Equipped capacitor | 55kw | 65-70kw | 84kw | 75.8kw | 92kw | 115kw |
| Using air pressure | 1.7-2.5mpa | 1.7-3.0mpa | 1.7-3.3mpa | 1.7-3.0mpa | 1.7-3.5mpa | 1.7-3.5mpa |
| Air consumption | 17-31m³/min | 17-30m³/min | 17-35m³/min | 17-35m³/min | 17-35m³/min | 17-35m³/min |
| Drill pipe length | 1.5m, 2.0m, 3.0m | 1.5m, 2.0m, 3.0m | 1.5m, 2.0m, 3.0m,6.0m | 1.5m, 2.0m, 3.0m | 1.5m, 2.0m, 3.0m,6.0m | 1.5m, 2.0m, 3.0m,6.0m |
| Drill pipe diameter | 76mm, 89mm | 76mm, 89mm | 89mm, 102mm | 76mm, 89mm, 102mm | 89mm,102mm,108mm | 102mm,108mm,114mm |
| Rig lifting force | 15t | 12t | 20t | 16t | 22t | 28t |
| Swing speed | 45-65rpm | 45-70rpm | 45–115rpm | 40–70rpm | 45-115rpm | 45–115rpm |
| Swing torque | 3200-4600(N.m) | 3500-4800(N.m) | 6200-8500(N.m) | 5700-7500(N.m) | 6500-9000(N.m) | 8500-11000(N.m) |
| Dimension | 3800*1500*2200mm | 4000*1750*2450mm | 5900*2000*2850mm | 4100*1950*2600mm | 5900*2100*2850mm | 6000*2200*2850mm |
| Weight | 4500kg | 5800kg | 9000kg | 7000kg | 10000kg | 12000kg |
Core Features of Deep Well Drilling Rig
- Vertical Spindle Drive Structure: The vertical spindle transfers rotation torque directly to the drill string through a hardened steel shaft supported by multiple bearing sets. This design delivers stable drilling force and high guiding precision, which matters greatly when drilling through mixed gravel and soil layers. The rigid spindle structure resists deflection during deep hole drilling, keeping the borehole straight and preventing drill pipe sticking issues.
- Dual Drilling Mode Compatibility: The rig supports both pneumatic drilling and mud circulation drilling. Pneumatic drilling works fast in hard rock formations, while mud drilling stabilizes borehole walls in loose unconsolidated layers. Operators switch between modes on site based on actual ground conditions; no major machine reconfiguration required. This flexibility means one machine handles a wider range of geological scenarios.
- Multiple Mobile Chassis Options: Buyers choose between crawler-mounted and trailer-mounted chassis based on their work environment. The crawler water well drilling rig excels on rugged, uneven terrain with poor road access, while the trailer version offers easier highway transport for teams that move frequently between towns.
- Adjustable Spindle Speed Range: The spindle offers multiple speed settings to match different drilling tasks and rock types. Lower speeds deliver higher torque for hard rock coring, while higher speeds increase penetration rate in softer soil layers for water well construction. Operators select the appropriate speed based on formation hardness and drilling method.
- Integrated Winch Lifting System: A built-in winch handles drill rod lifting and lowering during normal drilling operations. The winch system works in coordination with the vertical spindle feed mechanism to speed up rod connection and disconnection cycles, reducing non-drilling time on every project.
Deep Well Drilling Rig Applications
1. Domestic and Agricultural Water Wells: Rural households, farms and small communities rely on this equipment to drill reliable underground water supply boreholes. The mud drilling mode prevents hole collapse in soft soil common in farmland and residential areas. Both small shallow wells and medium-depth water sources fall within the working range of this rig.
2. Geological Exploration and Core Sampling: The rig extracts intact rock core samples for mineral prospecting, geotechnical investigation and pre-construction site surveys. The vertical spindle design maintains a good core recovery rate in various rock types, providing reliable geological data for engineering and resource assessment projects.
3. Small Infrastructure Borehole Work: Road construction teams, building contractors and municipal engineering crews use the rig for foundation investigation holes, grouting holes and other small-diameter drilling tasks. The compact footprint and flexible mobility make it suitable for construction sites with limited working space.
4. Mountainous and Remote Area Drilling: The crawler water well drilling rig reaches sites that truck-mounted rigs cannot access. Mountain villages, remote mining camps and hilly farmland areas all benefit from the off-road capability of the tracked chassis.
5. Geothermal Drilling Projects: Small and medium geothermal heating projects use the crawler water well drilling rig to drill shallow to medium-depth geothermal boreholes. The stable spindle structure ensures straight holes that meet geothermal installation requirements, and the dual drilling modes handle both overburden soil and bedrock sections efficiently.
6. Mining Site Water Supply Drilling: Mining operations need reliable water sources for dust suppression, equipment washing and worker use. The deep well drilling rig drills dedicated water supply boreholes directly on mining sites, eliminating the need for long-distance water transport and reducing operational costs for mine operators.
Depth and Diameter: The Two Numbers That Drive Your Decision
Every water well project starts with two requirements: the target depth and the required diameter. These two numbers determine everything else—the drill pipe size, the torque needed, the engine power required.
- Depth determines reach. A shallow well for residential use might need only 50-80 meters. An agricultural well for irrigation often requires 150-300 meters. A municipal water supply well can exceed 400 meters. The YG series deep well drilling rig covers depths from 180 to 600 meters.
- Diameter determines yield. A 140mm hole supports a small pump for a single household. A 200mm hole supports a larger pump for a farm or small community. A 300- 350 mm hole supports high-volume pumping for municipal or industrial use. The YG series covers diameters from 140 to 350mm.
- The trade-off: Drilling depth and hole diameter are inversely related. The deeper you go, the smaller the diameter you can maintain. The larger the diameter, the shallower the maximum depth. If you need a 350mm diameter well, you cannot reach 600 meters with the same rig. Decide which is more important for your project—depth or yield—and choose accordingly.
Water Well Drilling Equipment For Sale
Every deep well drilling rig manufactured by YG Machinery undergoes full performance testing before leaving the factory. The vertical spindle structure, dual drilling mode compatibility, and multi-chassis options make this equipment a practical choice for contractors who want to handle both water well and core sampling projects with one machine. Whether you run a rural water well drilling business, a small geotechnical survey team or a mixed construction drilling service, our complete model lineup covers drilling depths from 180 meters up to 600 meters to match your project scale. If you are looking for a reliable hydraulic water well drilling rig that also handles core sampling work, send us your project parameters — including target drilling depth, borehole diameter and typical geological conditions — and our team will recommend the most suitable model configuration and provide a detailed quotation.
