

The YG crawler water well drilling rig is equipped with multi-stage rotation speeds, adjustable torque, multiple drill pipe specifications, and an adaptive air pressure system, making it a highly adaptable piece of well digging equipment for various drilling scenarios. The rig supports drill pipe lengths from 1.5 m to 6 m, allowing free switching between fast shallow well construction and efficient deep well operation. The overall power, climbing ability, and advance stroke have all been optimized to industrial grade. If you want to buy cost-effective water well drilling equipment for sale, you can combine the detailed parameters with the water well drilling machine price for comprehensive selection.
Water Well Drilling Equipment for Sale Parameters
| Model | YG-180 | YG–200 | YG–300 | YG–300A | YG–400 | YG–600 |
| Drilling hole diameter | 140-254 mm | 140- 305 mm | 140-325 mm | 140-325 mm | 140-350 mm | 140-350 mm |
| 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 |
Key Points for Matching an Air Compressor to a Water Well Drilling Rig
The air compressor is the “heart” of an air-driven water well drilling rig, and its performance directly determines the drilling speed and hole wall stability. Compressed air plays three core roles in drilling: driving the down-the-hole hammer to break rock, blowing cuttings out of the hole bottom, and using air pressure to support the hole wall and prevent collapse.
Matching an air compressor should be evaluated from three aspects:
First, matching the geological conditions. Loose formations (sand layers, soil layers) have lower requirements for air pressure and air volume, and a medium displacement can meet the cuttings removal needs; hard rock formations require a high-pressure, high-flow air compressor to ensure the down-the-hole hammer gets enough impact energy. Taking YG-600 as an example, its working air pressure requirement reaches 1.7-3.5MPa, so the corresponding air compressor rated pressure should be no less than 3.5MPa, and a pressure margin should be left to compensate for pipeline losses.
Second, drilling depth determines displacement and pressure. For shallow wells (within 100 meters), an air compressor with a displacement of 10-17m³/min can be used; for medium-deep wells (100-300 meters), more than 20m³/min is needed; for deep wells over 300 meters, the displacement is recommended to be no less than 25-30m³/min, and a high-pressure screw air compressor should be selected. In the YG series, the air consumption of YG-400 and YG-600 both reach 17-35m³/min, so a corresponding grade of air compressor unit is required.
Third, match the power form with on-site conditions. Diesel mobile air compressors are highly mobile and suitable for field drilling without grid coverage; electric air compressors have lower operating costs but are limited by power supply conditions. For most water well drilling scenarios, a diesel-driven screw air compressor is a more practical choice.
Special attention should be paid to the fact that the actual output pressure of the air compressor should be higher than the rig’s nominal working air pressure. For example, YG-300 is marked with a working air pressure of 1.7-3.3MPa. If the air compressor rated pressure is only 3.3MPa, in plateau areas or with long pipelines, the actual pressure reaching the down-the-hole hammer may be less than 2.5MPa, causing a significant drop in drilling efficiency.


What Factors Affect the Water Well Drilling Machine Price?
Differences in water well drilling machine price are not accidental, but the result of multiple variables working together. Understanding these variables is the premise for making a reasonable purchasing decision.
First, drilling capability parameters. Drilling depth and hole diameter are the basic coordinates for pricing. A rig with a drilling depth of 200 meters and a hole diameter of 300mm and a model with a drilling depth of 600 meters and a hole diameter of 350mm differ by orders of magnitude in structural strength, power configuration, and hydraulic system specifications. The power difference between YG-180 and YG-600 (55kW vs 115kW) and the one-time advance length difference (3.4m vs 6.6m) are directly reflected in manufacturing costs.
Second, core component configuration. The brand of the diesel engine, hydraulic pump and valve group, rotary power head, and the quality grade of the crawler chassis have a significant impact on the overall price. Rigs using first-tier brand power systems have higher purchase costs, but their failure rate and long-term maintenance costs are noticeably lower.
Third, operation and hidden costs. Price should not be judged only by the purchase price. Fuel consumption level, frequency of wearing part replacement, convenience of maintenance, and speed of after-sales service response together form the full life cycle cost of the equipment. If selection is guided only by the initial price, higher costs may be paid later in operation.
Fourth, market supply and demand and delivery conditions. Delivery cycle, transportation method, and payment terms also affect the final transaction price. The pricing strategies for stock machines and customized machines are different, and freight differences between regions can also reach tens of thousands of yuan.


Why Choose YG Water Well Drilling Rig?
Among the many water well drilling equipment for sale options, the core advantages of the YG series are reflected in three aspects:
Complete parameter coverage and precise selection. From YG-180 to YG-600, six models form a continuous coverage of drilling depths from 180 meters to 600 meters. Users can precisely match the machine to actual well depth needs, avoiding the resource waste of “using a big machine for a small job” or the insufficient capacity of “using a small machine for a big job.” YG-300 and YG-300A provide two advanced length options at the same drilling depth (6.6m and 3.4m), adapting to different drill pipe configuration habits.
Practical power configuration and reasonable energy efficiency. The power gradient ranges from 55kW to 115kW, corresponding step by step with drilling depth and hole diameter, avoiding insufficient power caused by “a small horse pulling a big cart” or fuel waste caused by over-configuration. The working air pressure uniformly starts at 1.7MPa, and the upper limit increases with the model up to 3.5MPa, matching the working conditions of mainstream down-the-hole hammers.
The crawler walking system has wide adaptability. The whole series comes standard with a 2.5km/h walking speed and 30° climbing ability, providing good transfer mobility in complex terrain such as hills and mountains, reducing dependence on auxiliary transportation equipment.
FAQs about Water Well Drilling Rig
Q: Is lifting force important for deep well drilling?
A: Very important. As the borehole deepens, the self-weight of the drill pipe increases, and the risk of sticking rises. YG-600 has a 28-ton lifting force, suitable for 600-meter deep wells, leaving a sufficient safety margin for tripping operations.
Q: Can a water well drilling rig also drill dewatering wells and monitoring wells at the same time?
A: Yes. The YG series water well drilling rig is not only suitable for agricultural irrigation wells and drinking water wells, but can also construct foundation pit dewatering wells, groundwater monitoring wells, and geothermal exploration holes. By simply changing the corresponding drill bit and drill pipe configuration according to hole diameter and well depth, the same machine can adapt to various engineering drilling tasks, improving equipment utilization.
Q: What is the relationship between air compressor displacement and rig air consumption?
A: The air compressor displacement should be slightly higher than the rig’s rated air consumption, and a margin of 10%-20% is generally recommended. If the displacement is exactly equal to the rig’s air consumption, insufficient air supply may occur when there are pipeline leaks or at higher altitudes, leading to poor cuttings removal and even sticking.
Q: How to choose drill pipes?
A: For open sites and deep well projects, 6-meter drill pipes are recommended to reduce rod connection time; for projects with limited space and frequent short-distance moves, 1.5/2/3-meter short drill pipes are preferred.

Speak with Our Product Manager
Water Well Drilling Equipment for Sale
The YG series water well drilling rig is sold to domestic and international markets, covering the full range of models with drilling depths from 180 meters to 600 meters. It is suitable for agricultural irrigation wells, industrial water supply wells, geothermal wells, and geological exploration hole construction.
To obtain the water well drilling machine price and delivery cycle for a specific model, please provide the following information so we can quickly match a solution:
1. Planned drilling depth and target hole diameter
2. Geological overview of the construction area (rock layer type, hardness)
3. Whether there are special configuration requirements (such as a specific brand of diesel engine, customized drill pipe specifications)
We will provide model recommendations and a formal quotation based on your project parameters.







