A truck-mounted water well drilling rig can cost from tens of thousands of dollars to well over $100,000, depending on drilling depth, chassis, power system, drilling method, and overall configuration. Truck-mounted rigs are generally more expensive than basic portable or crawler models because the drilling system is integrated with a truck chassis for easier transportation between sites. The actual price also depends heavily on the required drilling depth and hole diameter. This guide explains the main cost factors and uses the Kaishan KWMT800 as a practical example of a high-capacity truck-mounted water well drilling rig.
There is no single price for a truck-mounted water well drilling rig because machines with very different capabilities can all be sold under the same general product name.
The first major factor is drilling depth. A rig designed for 200–300 m wells does not require the same drilling structure, power, hydraulic system, or supporting equipment as a machine designed for 600–800 m drilling. As the required depth increases, the overall machine configuration and cost usually increase as well.
Hole diameter also matters. Larger holes require more drilling power and can require larger drill pipes, tools, and supporting systems. A rig capable of drilling a wide range of hole diameters is generally more versatile, but that capability can also affect its configuration and price.
The truck chassis and mobility system are another important cost factor. Unlike a crawler or portable rig, a truck-mounted model combines the drilling system with a vehicle chassis. This allows the machine to travel between drilling locations more conveniently without requiring a separate carrier.
Engine power, hydraulic components, drilling head, winch, air or mud circulation system, control system, and optional equipment can also change the final quotation.

As a general market reference, new water well drilling rigs can range from around USD 15,000 to more than USD 150,000, with large differences between portable, crawler-mounted, and truck-mounted configurations.
For truck-mounted rigs, buyers should be careful when comparing prices from different suppliers. A low-priced machine may have a much lower drilling depth, smaller engine, narrower drilling diameter range, or a different level of equipment.
The useful comparison is therefore not simply:
“Which rig is cheaper?”
It is:
“What drilling capacity and configuration am I getting for the quoted price?”
For a commercial drilling contractor, this distinction is particularly important because a rig that cannot meet the required depth or formation conditions may create additional costs later.
The Kaishan KWMT800 Mounted Truck Well Drilling Rig is designed for larger water well and drilling projects where mobility and deep drilling capability are both important.
Its maximum drilling depth is 800 m, while available depth configurations include 180, 200, 300, 400, 500, 600, and 800 m. The drilling diameter range is 140–400 mm, giving the machine flexibility for different borehole requirements.
The KWMT800 also uses an integrated truck-mounted layout. The drilling rig, power, hydraulic system, circulation system, and other major components are integrated with the chassis, while hydraulic leveling legs help stabilize the machine during drilling.
|
Drilling |
Maximum drilling depth |
800 m |
|
|
Available drilling depth |
180 / 200 / 300 / 400 / 500 / 600 / 800 m |
|
|
Hole diameter |
140–400 mm |
|
|
Drill pipe length |
1.5 / 2.0 / 3.0 / 6.0 m |
|
Power |
Equipped power |
153 kW |
|
Air System |
Air pressure |
1.7–3.5 MPa |
|
Mobility |
Climbing capacity |
Max. 30° |
|
Machine |
Weight |
21,500 kg |
|
|
Voltage |
24 V |
|
|
Dimensions (L × W × H) |
6300 × 2300 × 2850 mm |
These specifications show why the price of a high-capacity truck-mounted water well drilling rig should not be compared directly with the price of a basic shallow-well machine. The drilling depth, diameter range, power, chassis integration, and overall equipment configuration are substantially different.
When requesting a quotation, ask the supplier to clearly state what is included in the machine price.
Depending on the supplier and configuration, the quotation may cover the main drilling rig, truck chassis, diesel engine, hydraulic system, drilling tools, drill pipes, winch, leveling system, control system, or other components.
However, some items may be quoted separately. These can include additional drill pipes, drilling tools, air compressors, spare parts, transportation, import duties, and other local costs.
This is why two suppliers may give very different prices even when both quotations appear to be for an “800 m water well drilling rig.”
Instead of comparing the final price alone, compare the main technical specifications line by line.
|
Item |
What to Check |
Details |
|
Drilling depth |
Maximum and commonly available working depths |
Check whether the rig meets the required project depth. |
|
Hole diameter |
Minimum and maximum drilling diameter |
Confirm the diameter range required for the borehole. |
|
Power |
Engine or total installed power |
Compare the power available for the intended drilling conditions. |
|
Air pressure |
Required working pressure |
Check compatibility with the selected drilling method and compressor. |
|
Mobility |
Truck-mounted, crawler-mounted, or portable |
Consider transportation requirements and site access. |
|
Drill pipe |
Length and available sizes |
Confirm the drill pipe specifications included in the quotation. |
|
Machine weight |
Important for transportation and site access |
Check transportation limitations and road conditions. |
|
Supporting equipment |
Compressor, drilling tools, pipes, and other accessories |
Confirm which accessories are included or quoted separately. |
|
After-sales support |
Spare parts, technical support, and service availability |
Check available technical and spare-parts support. |
A quotation with a higher initial price may include more equipment or greater drilling capacity. Conversely, a lower quotation may exclude important accessories that you will need to purchase separately.
For contractors who regularly move between drilling sites, the truck-mounted configuration can reduce the difficulty of transporting the drilling system from one location to another.
It is particularly useful when the project requires a combination of deep drilling capability and road mobility. The KWMT800, for example, combines a truck-mounted configuration with up to 800 m drilling depth and a 140–400 mm hole diameter range.
For shallower projects, however, a portable or crawler-mounted water well drilling rig may provide a more suitable configuration. The right choice depends on the actual drilling depth, formation, hole diameter, site conditions, and expected workload.
Kaishan provides different water well drilling rig configurations for different drilling requirements, from relatively compact machines to higher-capacity models such as the KWMT800.
For buyers considering a truck-mounted water well drilling rig, Kaishan can evaluate the required drilling depth, hole diameter, formation conditions, and supporting equipment before recommending a suitable configuration.
For an accurate quotation, the most useful information to provide is your required drilling depth, hole diameter, drilling method, and project location. This allows the machine configuration and supporting equipment to be matched to the actual project rather than quoted from a generic specification.
A new water well drilling rig can range from around USD 15,000 to more than USD 150,000 depending on its configuration. Truck-mounted deep-well rigs can be considerably more expensive than basic portable models. The final price depends on drilling depth, diameter, power, chassis, and equipment configuration.
The KWMT800 has a maximum drilling depth of 800 m, with available depth configurations from 180 m to 800 m.
The KWMT800 has a drilling diameter range of 140–400 mm.
Not necessarily. The included equipment depends on the specific configuration and quotation. Buyers should confirm whether the air compressor, drilling tools, drill pipes, and other accessories are included before comparing prices.
The most important information includes required drilling depth, hole diameter, formation conditions, drilling method, project location, and preferred machine configuration. These details help the manufacturer recommend the appropriate rig and supporting equipment.