Description: 1. Gl120y high air pressure dth drill powers the moving of the oil hydraulic motor, rotation, propelling and lifting, swing angle location and so on by diesel ( or electromotor) driving the hydraulic oil pump. 2. The dth hammers consumes the pressure air only when drilling. It can save energy (fuel oil or electric quality) as 40%-50% as the total pneumatic drill. It can also work with drill rods and button bits for rock drilling. 3. Gl120y is good for blasting hole in surface mine, water electric building, road construction and stone project. Main technical parameters Hole diameter 90-140mm Hole depth 30-90m Hammer 4, 5, 6inch Drill rod 60mm, 76mm, 89mm Air pressure 1.05-2.4mpa Air consumption 11.3--24mï/min Max. Hole hight (horizontal) 3.1m Angle of guide up 45ï, down 60ï Max. Swing angle of frame right 35ï, left50ï Boom swing left 45ï right 45ï Angle of boom up 48ï, down 19ï Lift up >30000n Rotary speed 0-90r/min Rotation torque 3000n.M Traveling speed 0-2.5km/h Braking wet-type double disk, release hydraulic oil, spring application Grade ability 26ï Transportation dimensions 6000*2300*2400mm Weight 7.0t Engine yuchai 70kw or cummins engine 56kw Optional parts: wet-type dust collection, dry-type dust collection, cummins diesel engine