1.Brief introductions of YQZ-30 hydraulic core drilling rig YQZ-30 hydraulic core drilling rig is a small portable diesel oil drilling machine. It is mainly used for prospecting and exploration, geophysical exploration,drilling engineering such as road construction and blasting hole, shallow oil, natural gas and groundwater drilling. It also can be used for engineering drilling of dam grouting and tunnel ventilation and drainage. The drilling depth of YQZ-30 hydraulic core drilling rig is 30 meters. The open hole diameter is 89mm, and the final hole diameter is 75mm. 2.Features of YQZ-30 hydraulic core drilling rig ·Oil pressure automatic feeding mechanism, high drilling efficiency. ·Using the upper ball clamp mechanism, non-stop re-chuck ·Handles are centralized, easy to operate, safe and reliable. ·Compact structure, small floor space. ·The shell of drill rig and gearbox are made of aluminum. The shell reduce the weight of the fuselage. · Easy to decomposition and move, suitable for working in hilly terrain, mountainous areas and other complex terrain. 3. Technical parameters of YQZ-30 hydraulic core drilling rig Main engine Drilling depth 30m Drill pipe diameter 42mm Open hole diameter 91-110mm End hole diameter 75 mm Drilling rig weight 198kg(No power) Drilling rig dimension 1400*600*1055mm Windlass Maximum hoist capacity 4kn Coiling block diameter 90mm Wire rope diameter 8mm Maximum length 18m The band type brake diameter 200mm The band type brake width 35mm Vertical shaft Rotating speed 136/338/578r/min Stroke 400mm Maximum pressure 8kn Lifting power 10kn Oil pump Model YBC20/125 Rated pressure 12.5Mpa Rate of flow 20ml/r Rated rotate speed 1500r/min Power Diesel engine R180 Cooling type water-cooling Rated power 5.67KW Rated rotate speed 2600r/min 4.Configuration list of YQZ-30 hydraulic core drilling rig Item Specification Unit Quantity Hydraulic core drilling rig YQZ-30 Platform 1 Drill pipe including joint 42 m 30 Reducing nipple joint 57/57 pc 2 Reducing nipple 89*57 pc 1 Opening pipe 89 pc 1 Alloy bit 91 pc 1 Reducing nipple 73 pc 1 Core barrel 73 pc 1 Diamond bit 75 pc 1 Water pump diesel engine power set 1 Drill tower 3m set 1 Wire rope 10mm m 20 Rope cappel pc 4 U shape ring pc 1 Flat square main rod 2m/pc pc 1 Reducing nipple for main rod pc 1 Water faucet pc 1 Lifter pc 1 U-fork 57 pc 1 Safety clamp 57 pc 1 Pliers 24 pc 1 L-wrench 73/89 pc 2