WRT600

💧 WRT600 600 m Truck-Mounted Straight-Mast Water Well Drilling Rig

The WRT600 is a truck-mounted fully hydraulic water well drilling rig designed for 600 m class deep water wells and rapid relocation between multiple job sites. The machine adopts a straight-mast structure, integrating the mast, power head, hydraulic feed, winch, and operating system on a truck chassis. It has a maximum drilling depth of 600 m, a hole diameter of 140–450 mm, 37 T lifting force, and 15000 / 7500 N·m dual-mode rotary torque. It is suitable for projects such as agricultural irrigation, municipal water supply, industrial water wells, mining area water supply, engineering dewatering, and geothermal surveys.

🚚 Integrated Truck-Mounted Structure for Rapid Cross-Regional Relocation

Compared with crawler or trailer-mounted equipment that requires separate towing, the WRT600 relies on its truck chassis for road relocation, making it suitable for frequent movement between multiple project sites. For water well drilling contractors, mining construction teams, and regional water well service teams, the truck-mounted structure can reduce loading and unloading cycles and shorten preparation time when moving from one drilling site to another.

🏗️ Straight-Mast Structure Emphasizes Stability and Simple Maintenance

The WRT600 adopts a straight-mast structure that does not change mast length through multiple telescopic stages. The overall load path is more direct, making it suitable for continuous rotation, deep-hole drill pipe handling, and high-load water well construction. The straight mast is characterized by a relatively simple structure and intuitive maintenance, but road height limits, site clearance, and turning space must be confirmed in advance during transport and site entry.

📏 600 m Drilling Depth Covers Medium-to-Deep Groundwater Development

With a maximum drilling depth of 600 m, it can be used in areas with deep groundwater levels, unstable shallow aquifers, or projects requiring a larger water-finding margin. The 600 m class capability can meet most agricultural and industrial deep water wells and is also suitable for medium-to-deep groundwater development in mining areas and infrastructure projects. Actual well depth should still be based on hydrogeological conditions and the target aquifer.

🕳️ 140–450 mm Hole Diameter Adapts to Various Well Casings and Pump Types

The drilling diameter range of 140–450 mm allows different well completion structures to be designed according to well casing, screen pipe, submersible pump, and expected water yield. Agricultural and community water wells usually do not require the maximum diameter for long periods, while mining, industrial, and high-flow water supply projects may require larger well diameters. Therefore, hole diameter selection should serve the final well completion objective.

💪 37 T Lifting Force Improves Deep-Hole Drill String and Casing Handling Capacity

The 37 T lifting force and 6 T axial pressure provide a large margin for tripping drill pipes, recovering DTH hammers, and some casing operations. At 600 m class hole depths, drill pipe weight, borehole wall friction, and casing weight all increase. If abnormal pulling resistance occurs, the cause should first be determined through hole cleaning and downhole condition assessment, and maximum lifting force should not be relied upon alone for forced pulling.

🔄 15000 / 7500 N·m Dual-Mode Torque Adapts to Different Formations

The rotary system has a maximum torque of 15000 / 7500 N·m, corresponding to maximum rotation speeds of 70 / 140 r/min. Low speed and high torque are more suitable for large-diameter, hard rock, and high-resistance hole sections, while the high-speed gear is suitable for stable formations with lower resistance. During construction, adjustments should be made dynamically according to rotary load, cuttings return, and drilling tool conditions.

🚀 7 m Feed Stroke Reduces Drill Pipe Handling Frequency

The feed stroke is 7 m, used with 3 m or 6 m drill pipes. 6 m drill pipes help reduce the number of connections and improve continuous drilling efficiency; 3 m drill pipes are more suitable for sites with limited space or ordinary handling conditions. The fast lifting speed of 30 m/min and fast advancing speed of 41 m/min are mainly used for drill pipe handling and power head return.

💨 1.2–3.5 MPa Air Pressure Adapts to Medium and High-Pressure DTH Drilling

When using DTH hammer drilling, the recommended working air pressure is 1.2–3.5 MPa, and the air consumption is 16–55 m³/min. Air compressor selection should consider hole diameter, hole depth, DTH hammer specifications, rock hardness, and altitude simultaneously. If pressure is reached but displacement is insufficient, insufficient impact and difficult cuttings removal will still occur.

💎 Hard Rock Conditions Such as Limestone, Sandstone, and Granite

After entering relatively intact rock formations, medium and high-pressure DTH hammers can be configured for DTH drilling. Hard rock construction should ensure DTH hammer lubrication, drill bit condition, and continuous hole cleaning. If cuttings return decreases, air pressure becomes abnormal, or rotary resistance increases, timely assessment should be made for bottom-hole cuttings accumulation, air leakage, or drilling tool wear.

🌧️ Mud Rotary Drilling Can Be Used in Soil, Clay, and Gravel Layers

For loose formations such as soil, clay, sand, and gravel layers, a mud pump and suitable drilling tools can be configured for mud rotary drilling. Mud circulation can carry drill cuttings and help stabilize the borehole wall; when the upper loose layer is thick, casing can also be combined to establish a stable hole section before entering the lower rock layer and switching to the DTH process.

🧱 Mixed Formations Are Suitable for Sectional Switching of Drilling Methods

Many water wells have loose overburden in the upper part and gradually transition to weathered rock and intact hard rock in the lower part. The WRT600 can use mud rotary drilling or casing wall protection in the upper part and switch to a DTH hammer in the lower part, reducing the problem that a single process cannot adapt to the entire hole section.

💧 Strong Aquifers and Water Inrush Sections Require Adjustment of Hole Cleaning Methods

After entering high-yield aquifers, groundwater will change cuttings removal and DTH hammer working conditions in the hole. Construction personnel should record the depth of main water-producing layers and adjust air supply, hole cleaning, and casing plans according to water inflow. During well completion, screen pipes and water-stop sections should also be set according to aquifer positions.

🏜️ Arid and Water-Scarce Areas Can Leverage the Advantages of Pneumatic Drilling

In suitable rock formations, DTH drilling mainly relies on compressed air impact and cuttings removal, with low dependence on large amounts of drilling water. Therefore, it is suitable for arid agricultural areas, remote mining areas, and projects lacking a stable mud water source. If the upper loose layer is thick, mud or casing assistance may still be required.

🌾 Agricultural Irrigation and Farm Water Supply

The WRT600 can be used for irrigation wells in farmland, orchards, pastures, and greenhouses. The 600 m class depth provides a larger water-finding margin in areas with deep groundwater levels, while the truck-mounted chassis facilitates rapid relocation between multiple farms and hole positions.

🏘️ Municipal and Community Water Supply

Villages, communities, and public facilities can use the WRT600 for deep groundwater development. For concentrated population or long-term water supply projects, hydrogeological surveys and water quality assessments should be completed before drilling to determine well depth, well diameter, screen pipes, and pump type.

🏭 Industrial Water Wells and Construction Camp Water Supply

Factories, industrial parks, and large construction camps can use the WRT600 to drill production auxiliary water wells, cleaning water wells, and domestic water supply wells. The truck-mounted platform is suitable for frequent relocation of engineering projects and also helps reduce the organizational cost of separately transporting the drilling rig.

⛏️ Mining Area Water Supply and Dewatering Projects

Mining areas can use the WRT600 to drill camp water supply, dust suppression, equipment cleaning, and auxiliary production water wells, and can also undertake some dewatering boreholes according to hydrological design. Mining area roads and sites are often rough; before entry, the road passage, turning, and platform bearing conditions of the truck chassis should be confirmed.

♨️ Geothermal Surveys and Temperature Gradient Holes

The 600 m class drilling depth can also be used for some geothermal surveys and temperature gradient holes. Geothermal projects require additional consideration of formation temperature, circulation medium, casing, and cementing requirements. Formal geothermal development wells should be equipped with drilling tools and well completion plans according to special designs.

🧵 3 T + 1.5 T Dual Auxiliary Winches Reduce On-Site Manual Burden

The equipment is equipped with a 3 T large auxiliary winch and a 1.5 T small auxiliary winch, which can be used for handling DTH hammers, drill pipes, casing tools, air hoses, and other accessories. Reasonable use of the dual winches can improve drilling site organization efficiency and reduce high-frequency manual handling.

⚡ 132 kW Diesel Power Meets Continuous Construction

The equipment is equipped with a 132 kW diesel engine to provide power for rotation, feed, winch, and auxiliary systems. During long-term hard rock or deep hole construction, focus should be placed on maintaining engine cooling, air filtration, and the fuel system. At dusty sites, the frequency of filter element and radiator cleaning should be increased.

📦 26 T Total Machine Weight Requires Advance Planning of Roads and Sites

The total machine weight is approximately 26 T, and the transport dimensions are approximately 10 × 2.48 × 3.75 m. Although the truck-mounted chassis facilitates road relocation, before project entry it is still necessary to confirm road width, bridge load capacity, height limits, turning radius, and drilling site ground bearing capacity to avoid being unable to set up for operation due to insufficient road or space conditions after arrival.

⚠️ Precautions for Truck-Mounted Drilling Rig Construction and Relocation

Before daily start-up, check the truck chassis, mast, hydraulic system, power head, winch, drill pipes, and high-pressure air hoses; during drilling, continuously observe air pressure, torque, cuttings return, water return, and pulling resistance; before relocation, the mast and working mechanisms must be restored to a safe transport state, and the equipment must be secured according to road transport requirements.

Due to differences in actual geological conditions, downhole tools, drilling angles, and operating methods, the final drilling efficiency, drilling depth, and well completion results should be based on on-site conditions.

📊 Main Technical Parameters