Working principle: The pneumatic down-the-hole hammer is a pneumatic impact tool powered by compressed air. The impact energy and frequency generated by it can be directly transmitted to the drill bit, and then driven by the rotary drive of the drill rig and the drill rod to form the pulsating crushing ability of the rock. At the same time, the compressed air discharged by the down-the-hole hammer will be used to crush the rock particles. Exhaust from the body, so as to achieve the purpose of hole bottom percussion rotary drilling to clear the hole.
Applicable strata: The applicable strata for down-the-hole hammer drilling can include almost all igneous and metamorphic rocks, as well as sedimentary rocks above medium-hardness. For hard rock and hard rock, the use of down-the-hole hammer drilling is more advantageous. For rock formations prone to hole deviation, such as well-developed schistosity, bedding, or rock formations with uneven softness and hardness and multiple fractures, energy efficiency prevents or reduces hole deviation. It can overcome the difficulty of drilling in certain pebble and boulder layers.
Application areas: solid mineral exploration, engineering geological survey, water well drilling construction, blast hole construction, anchoring and grouting engineering construction, foundation engineering construction, mine shaft construction, underground tunnel construction, etc.
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