QU20 mechanical crane
QU20 is designed and developed from our long manufacturing experiences of excavators and cranes.And it has combined with lifting, dragline, clamshell, face shovel, backhoe and pile drving functions. It's a fully swing and crawler travel machine powered by a diesel engine with an optional electromotor driving system. It's main parts are fabricated of steel alloys. It applies hydraulic control system which makes it easy to operate. Some of its transition parts are level controlled and this makes it easy of maintenance and reduces its overall weight. It's especially suitable for repeated and continuous work. It's widely used in mineral digging, construction, civil utilities, agriculture andirrigation. By far we have manufactured over 8000 units and sold in the ussr, viet nam, singapore,middle east,africa and other countries and you can find our qu20 excavators, which were made as early as 50 years ago, are still working all over asia. By the end of year 2000 we have produced over 10,000 units of qu20 mechanical excavators and exported over 1000 units to more than 20 countries.
Main technical parameters
Item decription Unit Data Item decription Unit Data Enging Roted Outpwt(6135K-1 diesel) kw 88.2 Gradeability % 36 Enging power(Y280M-4 eiectric) kw/r/min 90/1500 Slewing speed r/min 4.6 Travelling speed km/h 1.5 Crawler Ground pressur Mpa Max.pullig power kN 156 Dimennsions（L×W×H) 13910×6450×3775
Crane
Project Title Symbol units Parameters Super weight t 20 Weight m 20 8 16 6.5 8 3 2.3 1.1 4 3 2 8 Main arm length mm 13000 16000 23000 2300带副臂 30000 30000带副臂 Luffing main arm speed m/s 0.019 Jib tilt angle 。 78 50 7 78 50 78 50 78 50 78 50 Lifting speed m/s 0.259 0.388 0.776 0.388 0.776 Rate drop m/s 0.279 0.418 0.837 0.418 0.837 Rotary rate mm 4000 7800 4700 9300 6000 12400 10800 18000 7900 16000 12300 2130 Upgrade pulley ratio 3 3 3 3 2 2 1 1 2 2 Rotary speed r/min 0-2 Whole quality t 41.92 42.23 42.81 43.43 43.39 44.01 Ground Pressure Mpa 0.87 0.88 0.89 0.90 0.90 0.91