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• The innovative jib system adopts embedded block, plug-in boom head and international advanced U section jib, which has excellent lifting performance and safe and reliable lifting work.
• The unique stretch and retract technique avoids the bend of the core pipe and cylinder and the break of the boom caused by disoperation, improving the safety of the operations.
• Eight patent techniques ensure the smooth, high efficiency and energy conservation of the lifting, rotation, and luffing systems.
• Adopt the new hydraulic motor with big torque starting point, making the secondary lifting safer.
• The torque limiter adopts colorful LCD display, realizing the intelligence of the failure diagnosis. The precision is ahead of the industry.
• The humanity design makes the cab and control cab more spacious, and easy to operate.
• Six unique manufacturing technologies ensure the high quality.

| Dimension | Unit | QY50K-Ⅱ | 
| Overall length | mm | 13750 | 
| Overall width | mm | 2800 | 
| Overall height | mm | 3520 | 
| Weight | 
 | 
 | 
| Total weight in travel | kg | 41000 | 
| Front axle load | kg | 15000 | 
| Rear axle load | kg | 26000 | 
| Power | 
 | 
 | 
| Engine model | 
 | WD615.334(domestic III) | 
| Engine rated power | kW/(r/min) | 247/2200 | 
| Engine rated torque | N.m/(r/min) | 1350/1400 | 
| Travel | 
 | 
 | 
| Max. travel speed | km/h | 80 | 
| Min. turning diameter | m | 24 | 
| Min. ground clearance | mm | 291 | 
| Approach angle | ° | 17 | 
| Departure angle | ° | 11 | 
| Max. grade ability | % | 40 | 
| Fuel consumption for 100km | L | 45 | 
| Main performance | 
 | 
 | 
| Max. rated total lifting capacity | t | 50 | 
| Min. rated working radius | m | 3 | 
| Turning radius at turntable tail | m | 3.482 | 
| Max. lifting torque | kN.m | 1764 | 
| Base boom | m | 11.3 | 
| Fully extended boom | m | 42.7 | 
| Fully extended boom+ jib | m | 57.7 | 
| Longitudinal outrigger span | m | 5.91 | 
| Lateral outrigger span | m | 6.9 | 
| Working speed | 
 | 
 | 
| Boom luffing time | s | 88 | 
| Boom full extension time | s | 180 | 
| Max. swing speed | r/min | ≥2.0 | 
| Max. speed of main winch (single rope) (no load) | m/min | ≥110 | 
| Max. speed of aux. winch (single rope) (no load) | m/min | ≥110 | 

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