• 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 misoperation, 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