HF320 crawler type rotary drilling rig adopt pressurized drilling mode, enabling rotary drilling depth is 22m. matching the different specifications of drilling tools, pile hole diameter range up to 500-1200mm.
This machine is applicable to soil, clay, fill soil, silt, silt layer, and some strata contain pebbles, gravel; widely used in high-speed rail trestle piles, slop shield piles, photovoltaic power station foundation pile, power grids, civil construction, new rural construction, municipal construction, landscaping and other projects.