DMiningwell MW280 diesel machine portable hydraulic crawler water well drilling rig
What is a water well drilling rig? Simply put, a water well drilling rig is a mechanical device which drills water wells and completes downhole pipelines, well washing, etc. It includes power equipment and drilling bits, drill pipes, core tubing, and drilling frames.
Water well drilling rig mechanism
1. Hydraulic oil pump: it is a double-type high-capacity pump to provide power for the power head. The small displacement pump powers the quadruple leg cylinders, the landing mast cylinders and the weighting/lifting cylinders.
2. Four legs: the small drilling equipment consists of hydraulic cylinders and fixed frame. The height of the body can be adjusted to support and stabilise the body at the work site.
3. Mast: A frame structure made of jumbo steel tubes, channel steel and angle steel welded together. The inner groove of channel steel on both sides is used as a power head to run up and down to ensure the verticality of the hole. The rise and fall of the well mast is done by hydraulic cylinders.
4. Power head: The mechanism using gear reducer has a large diameter mandrel in the middle of the low speed shaft. The upper end of the mandrel can be connected to the hose connection of the concrete pouring equipment to inject concrete; the lower end of the mandrel is connected to the drilling rods and bits through the blue plate. The high-speed shaft is driven by a high-torque hydraulic motor.
With the core design concept of ‘high efficiency, stability and intelligence’, MW280 drilling rig is specially designed to cope with complex geological conditions and diversified engineering needs. With a maximum drilling depth of 280 metres and drilling diameters ranging from 140 to 305 mm, the MW280 is capable of precise operations in deep water well construction, mining resources exploration and geothermal energy development. Combined with the 70 kW high-power electric motor, the power output is surging, which can easily penetrate rock layers, gravel layers and other geological structures, and significantly improve the drilling efficiency.
Power System Upgrade Equipped with customised high-strength hydraulic power unit, the power output is smoother and the energy consumption ratio is optimised by 15%. Meanwhile, the intelligent speed control system can automatically adjust the drilling speed according to the hardness of the geological strata, realising the intelligent mode switching of ‘high-speed drilling in soft strata and stable speed breaking in hard strata’, avoiding overloading of the equipment and prolonging the service life of the key components.
Stability and adaptability are both guaranteed Adopting the reinforced crawler chassis design, the ground clearance is as high as 400mm, and the climbing ability is more than 35°, which makes the driller move freely even in the muddy, mountainous and other complicated terrains. In addition, the drilling rig is equipped with an automatic levelling system, which can complete the adjustment of working attitude within 3 minutes, ensuring that the deviation of drilling verticality can be controlled within 0.5% to meet the needs of high-precision engineering.
Application Scenarios: Multi-field Coverage, Maximising Value
- Water well drilling field In agricultural irrigation and urban water supply projects, MW drilling rigs can complete the construction of more than 50 deep water wells per year with a single unit and increase the water output rate by 20% due to its large-diameter drilling capacity and fast well formation efficiency. Especially for the hard rock layer water extraction project in arid areas, its efficient rock breaking performance effectively solves the pain point of traditional equipment, which is ‘slow progress and high loss’.
- mining engineering construction It is suitable for accurate drilling of mine roadway support holes, blasting holes and resource exploration holes. The equipment is equipped with automatic anti-jamming system, which can monitor the torque change in real time and adjust the drilling strategy automatically, reducing the jamming rate by 80% in complex ore layers, and greatly improving the construction safety.
- Geothermal drilling (geothermal development) For the demand of clean energy development, the MW280 drilling rig optimises the design of deep hole sealing and high temperature prevention, which can still work stably in 150℃ stratum environment. Combined with special drilling tools, it can realise one-time drilling of geothermal wells, reduce the cost of secondary operation, and help the new energy industry to reduce cost and increase efficiency.
- Expansion of civil engineering In foundation pile holes, bridge anchor holes and other municipal projects, the equipment’s miniaturised body and precise positioning function enable it to be flexibly deployed in narrow construction sites, making it the ‘invisible champion’ of urban infrastructure projects.
| MW280 crawler water well drilling rig | |||
| The weight（T）
|
7.6 | Drill pipe diameter（mm）
|
Φ76 Φ89 |
| The hole diameter（mm）
|
140-305 | Drill pipe length（m）
|
1.5m 2.0m 3.0m |
| Drilling depth（m）
|
280 | Rig lifting force（T）
|
17 |
| One-time advance length（m）
|
6.6 | Rapid rise speed（m/min）
|
25 |
| Walking speed（km/h）
|
2.5 | Fast feeding speed（m/min）
|
30 |
| Climbing angles（Max.）
|
30 | Width of loading（m）
|
2.7 |
| Equipped capacitor（kw）
|
75 | Hoisting force of winch（T）
|
2 |
| Using air pressure（MPA）
|
1.7-3.0 | Swing torque（N.m）
|
4500-6000 |
| Air consumption（m³/min）
|
17-31 | Dimension（mm）
|
5900×1850×2360 |
| Swing speed（rpm）
|
40-70 | Equipped with hammer | Medium and high wind pressure series |
| The penetration efficiency（m/h）
|
15-35 | High leg stroke（m）
|
1.4 |
| The engine brand | Yuchai engine | ||
