Application: Used for industrial/civil water wells and geothermal air conditioner, especial good at hard rock/stone/sand drilling; with characteristic of big drilling diameter, deep drilling depth and quick drilling speed etc. Parameters: Technical;;parameter Model;No.; DVT-30/60 Drilling;diameter 50-150mm Drilling;depth 30-60m Drilling;angle 45-90 One;time;advance;length 1000mm; Electric;motor; 4-5.5kw Drill;sewing;speed; 0-78 Pressure 0.5-0.8mpa Air;consumption; 6/min total;weight 230kg;