CJSD Series Crawler-Mounted Water/Air Dual-Purpose Water-Well Drilling Rig

1.Introduction to the CJSD Series Crawler-Mounted Water/Air Dual-Purpose Water-Well Drilling Rig

he CJSD Series crawler-mounted water/air dual-purpose water-well drilling rig is a new-generation pneumatic water-well drill jointly developed by Shandong Jujiang Machinery Group and Jining Jujiang Machinery Research Institute. This model has been specifically designed to address the challenging drilling conditions found in complex geological formations, including Gobi deserts, sandy terrains, large cobblestone layers, granite, weathered rock, silt deposits, and other difficult ground conditions where conventional drilling rigs often fall short due to their single-function capabilities. This newly developed crawler-mounted multi-functional water-well drilling rig represents a significant advancement in the field. It supports a maximum borehole diameter of 650 mm and a maximum drilling depth of 1,000 meters, with specifications selectable according to different construction requirements. The series is engineered for exceptional versatility, offering two distinct drilling methods—mud rotary drilling and DTH (down-the-hole) hammer drilling—within a single machine. This dual-function design enables the rig to adapt seamlessly to a wide variety of complex operating conditions, delivering reliable performance across the most demanding job sites.

2.Features of the CJSD Series Crawler-Mounted Water/Air Dual-Purpose Water-Well Drilling Rig

2.1 The independently developed multi-functional power head is equipped with a three-motor drive system, featuring high-speed, low-torque oblique-axis variable-displacement piston motors with manual adjustment capability. It delivers high rotational speed and substantial torque, and is fitted with a shift cylinder that enables smooth switching between high and low speeds. This design comprehensively accommodates various complex working conditions, providing the drilling rig with powerful and flexible power support for efficient operation.

2.2 Powered by a high-pressure six-cylinder electronic fuel-injection engine, this drilling rig features a power core meticulously crafted by Yuchai Group. Leveraging cutting-edge technology, it achieves intelligent and precise regulation of air and fuel delivery, delivering robust and stable power output. Even under the extreme conditions of high-altitude environments ranging from 3,000 to 5,000 meters above sea level, the engine effectively overcomes challenges such as oxygen deficiency, maintaining continuous and efficient operation. Providing strong and reliable power support for the drilling rig, it stands as the premier power solution for high-altitude engineering projects.

2.3 To ensure drilling stability during operation, the rig is equipped with a heavy-duty undercarriage, reinforced steel tracks with excavator-grade strengthening ribs, and 1.75-meter hydraulic high-support outriggers. These features facilitate convenient transportation and excellent maneuverability, making the rig well-suited for construction operations in complex terrains, including both urban and mountainous areas.

2.4 The rig’s primary hydraulic hoses are constructed with four-layer steel wire reinforcement, engineered to withstand the repeated pressure surges and peak pressure spikes that commonly occur during drilling operations. These hoses offer exceptional tensile and torsional resistance, maintaining structural integrity even under demanding working conditions characterized by intense vibration, jolting, and frequent flexing of hydraulic lines. This robust design significantly extends the service life and ensures the long-term stability of the rig’s critical hydraulic circuitry.

2.5 The cylinder piston rods are treated with a high-frequency hard chrome plating process, which significantly enhances the hardness, wear resistance, and corrosion resistance of the cylinder body. This treatment also improves surface finish and sealing performance, increases surface fatigue strength, and effectively extends the service life of the hydraulic cylinders.

2.6 Equipped with a 40-ton hydraulic clamper with a bore diameter capable of accommodating up to 650 mm, the rig facilitates auxiliary casing running and drill pipe make-up/break-out operations while providing ample clamping force for various drilling tools. Customized configurations are available to precisely match different types of drilling tools, enhancing operational safety, reducing the risk of accidents, and minimizing energy consumption and wear.

2.7. Equipped with dual winches that operate independently and offer flexible control, the rig enables parallel operations. While the main winch is engaged in hoisting tasks, the auxiliary winch can simultaneously assist with other operations, significantly improving overall work efficiency, enhancing load adaptability, and ensuring operational safety.

2.8 The rig’s sheet metal components are constructed from stainless steel, offering excellent corrosion resistance and rust-proof performance. This not only extends the service life of the equipment but also ensures a sleek appearance and facilitates easy maintenance.

3.Parameters of the CJSD Series Crawler-Mounted Water/Air Dual-Purpose Water-Well Drilling Rig

Note: Due to ongoing product improvements, specifications are subject to change without prior notice. Please refer to the actual product for details.