徐工 QY 50 K-II

### Core Performance - Max. total rated lifting capacity: **50 t** - Min. rated working radius: **3 m** - Max. lifting moment: **1764 kN·m** - Max. slewing speed: **≥2.0 r/min** ### Boom & Jib - Base boom length: **11.3 m** - Fully extended main boom: **42.7 m** - Max. combined length (main boom + jib): **57.7 m** - Jib options: **8.5 m / 15 m** (standard) - Max. hoisting height (fully extended boom): **≈42.7 m** - Max. hoisting height (main boom + 15 m jib): **≈57.7 m** ### Dimensions & Weight Parameter Value --- --- Overall length (L) **13770 mm** Overall width (W) **2800 mm** Overall height (H) **3570 mm** Total weight in travel state **41000 kg** Front axle load **15000 kg** Rear axle load **26000 kg** ### Travel Performance - Max. travel speed: **80 km/h** - Min. turning diameter: **24 m** - Min. ground clearance: **327 mm** - Approach angle / Departure angle: **17° / 11°** - Max. gradeability: **40%** - Fuel consumption (per 100 km): **42 L** ### Outriggers - Longitudinal outrigger span: **5.91 m** - Lateral outrigger span: **6.9 m** ### Power & Winch - Engine model: **WD615.338 (Euro III)** - Engine rated output: **247 kW / 2200 r/min** - Engine rated torque: **1350 N·m / 1400 r/min** - Main winch max. speed (single line, no load): **≥110 m/min** - Auxiliary winch max. speed (single line, no load): **≥110 m/min** ### Working Speed - Boom elevating time: **88 s** - Boom full extending time: **180 s** - Turning radius at turntable tail: **3.482 m** ---