HW Crawler rotary drilling rig uses two drilling types, self weight pressure adding type and cylinder pressure adding type, which can drill 5-22meters depth, 500-2000mm diameter with different drilling rigs. This drilling rig fits to normal earth, clay, silt, mud, and some ground which includes part of pebbles, gravel, strong weathered rocks. It suits to many projects, including house construction, high speed rail contact network support, slope protect pile, city construction, new countryside construction, power grid transformation and garden greening, etc.
This tool operation is simpel,variety size of device could be used for different ground screw. This driver is shipped completely assemble.When we push the reverser,the host machine will contrarotate,Then ground screw will be drilled out.When the ground screw work normally,the adjusting knob of control instrument can be adjusted to maximun.It can ensure the host machine output the biggest torque.
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