Drilling depth: 300m
Drilling diameter: 140-325mm
Main motor power: 85kW
MKDQZ-300A Pneumatic Water Well Drilling Rig
Overview
The MKDQZ-300A is an ultra-short, lightweight crawler-mounted pneumatic DTH(Down-the-Hole) water well drilling rig designed for 300m-class medium-shallow borehole projects, especially for narrow construction sites and frequent relocation needs. Powered by an 85kW Yuchai diesel engine with proven down-the-hole air percussion drilling technology, it maintains a high penetration rate of 15-35m/h in soft soil, sand-gravel layers, and hard rock formations such as granite and limestone. With a maximum drilling depth of 300m and a bore diameter range of 140–325mm, this rig is widely suitable for residential water wells, farm irrigation, foundation dewatering, and mountainous drinking water projects.
Specifications
| Model | MKDQZ-300A |
Weight | 6.8T |
Drill hole diameter | 140-325mm |
Drill hole depth | 300m |
Single push length | 3.3m |
Travel speed | 2.5km/h |
Climbing ability | 30Max. |
Engine power | 85kW |
Working air pressure | 1.7-3.0MPA |
Air consumption | 17-36m3/min |
Rotation speed | 40-70rpm |
High leg stroke | 1.4m |
Drill pipe diameter | Φ76 Φ89mm |
Drill pipe length | 1.5m/ 2.0m /3.0m |
Rig lifting force | 18T |
Rapid rise speed | 22m/min |
Fast feeding speed | 40m/min |
Width of loading | 2.6m |
Hoisting force of winch | 2T |
Swing torque | 5700-7500N.m |
Dimensions | 4100*2000*2260mm |
The penetration efficiency | 15-35m/h |
The engine brand | Yuchai |
1. 300m Rated Drilling Depth with 140–325mm Wide Bore Range
This pneumatic DTH(Down-the-Hole) drill rig delivers a rated drilling depth of 300 meters and adapts to bore diameters from 140mm to 325mm, fully covering most construction needs of domestic water wells, farm irrigation wells, foundation dewatering wells and small industrial water wells. One single unit handles both small-diameter deep water wells and large-diameter shallow dewatering holes, eliminating extra investment in multiple equipment for different project types.2. 85kW Yuchai Diesel Engine, Fuel-Efficient & Globally Serviceable
Equipped with an original 85kW Yuchai diesel engine, it features sufficient power reserve and excellent fuel economy, with a complete global after-sales network and spare parts supply system. The equipment maintains stable output even in high-temperature, high-altitude and dusty field environments with low failure rate, effectively reducing unplanned downtime and long-term operating costs.3. 15–35m/h High Penetration Rate with DTH Percussion Technology
Adopting proven DTH(Down-the-Hole) air percussion drilling principle, the rig achieves a penetration efficiency of 15–35m/h in typical hard rock strata. Compared with traditional mud rotary drilling rigs, it greatly improves rock-breaking speed in dense geological conditions, significantly shortens single-well construction cycles, and enables drilling teams to take on more projects within the same operating period for higher profitability.4. Dual-Spec Drill Pipes with Multiple Length Options for Flexible Adaptation
The rig is compatible with Φ76mm and Φ89mm drill pipes, and supports three length specifications of 1.5m, 2.0m and 3.0m. Users can flexibly match drill tool solutions according to well depth, bore diameter and geological conditions, and can adapt to different construction needs without additional procurement, improving the equipment's scenario adaptability.
5. 18T Reliable Axial Lifting Force for Safe 300m Deep Hole Operation
The main hoisting system provides 18 tons of axial pulling force, which can smoothly lift the full set of drill tools within 300m depth, and effectively deal with downhole emergencies such as pipe sticking and burying. The robust lifting capacity ensures safe and efficient tripping operations, reduces operation risks for on-site construction crews, and extends the service life of drill tools.Get a quote
For inquiries regarding the price, specifications, or configuration details of the MKDQZ-300A water well drilling rig, please contact us.
Company Introduction


Shandong Mikton Heavy Industry Technology Co., Ltd. (Shandong Mikton), located in Shandong Province, is a modern heavy-industry technology enterprise integrating R&D, design, manufacturing, sales, and service. The company owns standardized production plants and modern office buildings, employing over 300 people. Equipped with advanced production lines, precision processing facilities, and a strict quality control system, Shandong Mikton specializes in the manufacturing and innovation of construction and mining equipment, with main products including drilling rigs, excavators, and other heavy machinery. Guided by technology and driven by quality, the company serves customers both domestically and internationally, dedicated to delivering efficient, durable, and intelligent heavy equipment and comprehensive solutions to the global market.


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