The DTH drilling rig (down-the-hole drilling machine) is a kind of drilling machine, which is mainly used for drilling in rock formations. The down-the-hole drilling rig uses the impactor and the DTH drill bit.
[pdf] Power frequency direct coupling screw type Coaxial integrated structure without any loss, reduce vulnerable parts, high rotation rate. Direct drive coaxial integrated design, dust-proof sound insulation cotton, 70 decibels, protection level IP55, waterproof and dustproof.
[pdf] Environmental protection and durability; Low vibration and low noise; High efficiency, heavy load, silent. Compact design does not need to occupy a big space, working quiet. Widely used in automobile repair and services industry.
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