Description: 1. SZ200 crawler-type multi-well drilling rig is lightweight, efficient, multi-purpose drilling equipment, which can use air, foam or mud rotary for percussive drilling according to different textures. 2. It is widely used in industrial and agricultural water conservancy projects, such as drilling wells, testing wells or other exploration boreholes, particular, in drilling hole for geothermal heating. 3. It can also meet the requirements in other construction project such as reinforcement of engineering basis ,drilling with casing in loose gravel and drilling foundation rock.