DMD280/280L Mechanical Top Drive Drilling Rig for Water Drilling and Air Drilling

DMD-280/280L mechanical top drive drilling rig is a kind of drilling equipment independently developed by the company that integrates the functions of water drilling and air drilling (China invention patent: ZL201510479602.4). The drilling rig adopts a 5-speed manual automobile gearbox and a mechanical top drive power head. It has a wide speed range, convenient forward and reverse switching. high mechanical transmission efficiency. and greatly reduced power energy consumption. it is more efficient and energy-saving, which solves the problems of difficult air DTH hammer drilling in soil layers and low construction efficiency of rotary drilling rigs in hard rock layers. gravel and pebble layers.