Large Horsepower Deep Geotechnical Pneumatic Drilling Machine High Efficiency ST260

Underground Deep High Drilling Efficiency Pneumatic Drilling Rig designed for maximum performance in challenging geological conditions.

This multi-functional drilling equipment is primarily suitable for drilling wells, agricultural irrigation wells, geothermal air conditioning holes, and other well applications. It is especially effective for water intake projects in mountainous areas and rock strata.

• Large drilling diameter, deep drilling capability, fast footage, flexible and efficient operation
• Equipped with high-torque hydraulic motor and large-bore hydraulic cylinder for propulsion
• Pump set design facilitates convenient maintenance
• Excavator crawler chassis provides strong off-road capability
• Independent modular design with superior maneuverability
• Combined positioner can be adjusted and replaced according to different types of drill rods and impactors
• Ensures accurate positioning and centering for optimal performance

1. Unscrew and discard the oil filter
2. Clean the filter shell by self suction and dredge the front and rear differential pressure through holes
3. Check whether the differential pressure transmitter is normal
4. Fill the new filter element with oil and apply a layer of oil on the sealing ring of the filter element
5. When installing the filter element, screw it until it contacts the sealing gasket, then manually tighten it by 1/3 turn
6. After startup, check whether there is leakage

After two times of tripping in, the thickness of the muck is determined through the number on the display. After assessing the softness and hardness of the dropped address, if there is a lot of soil and it is hard clay, a drill bucket smaller than the pile diameter is used to solve the problem of slipping.

Because there is a large gap between the diameter drill bucket and the hole wall, the dropped soil is under the action of the total amount of drill pipe bucket and pressure. Through the gap between the drill bucket and the hole wall, the small-diameter drill bucket can normally drill when it contacts the solid soil. The large-diameter drill bucket is squeezed into the small hole after two times of running in, so that the large-diameter drill bucket can normally enter the small hole.