QY70K-I heavy lifting machinery hydraulic transmission 70 ton truck crane hot sale

2. It has the longest boom compared to the same class crane boom. Five-section boom of oval cross-section with special sliders, aligning device and high-tension steel plates contribute to smooth telescoping, reliable alignment, light boom weight and strong lifting capacity.
3. Bi-part jib, comprising one lattice section and one box section.
4. Double cylinder plus ropes for boom telescoping. Thick cable and bearing are imported parts and have reliable performance.
5. Hydraulic transmission for both superstructure and chassis. Each mechanism speed can be regulated steplessly, so smooth movement and easy operation can be gained.
6. Main and auxiliary winch systems can get oil supplied by single pump or double pump. The high efficiency motor of variable displacement has the features of lower speed with heavy load and higher speed with light load.
7. Slewing system with planetary reducer and constant closed-type brake has free sliding function. Straight-tooth slewing bearing activated by a motor and a buffer valve fitted in the hydraulic system contribute to free sliding and reliable inching control.
8. Founding counterweight suspended highly in the rear of the machine makes more space for slewing operation (standard counterweight of 4t +optional counterweight of 1t).
9. Equipped with perfect safety devices: load moment indicator (LMI), hoist limit switch, outrigger pinning device and electric level gauge. And illuminators facilitate night operations.
10. Streamlined integrated operator’s cab with full view, equipped with air-conditioner, roll-up sun shield, shock-absorbing adjustable seat, and soundproof and heat insulation.
11. Lower center of gravity, good stability, high travel speed and manoeuvreability facilitate fast job site transfer.
12. Excellent welding technology for structural members. Welding robot with advance process for key welding make reliable quality products.

Description		Unit	Parameter value
Overall length		mm	13900
Overall width		mm	2800
Overall Height		mm	3575
Axle base	1st ,2nd axle	mm	1470
	2nd ,3rd axle		4105
	3rd ,4th axle		1350
Wheel Base		mm	2304+2075
Total vehicle mass in travel configuration		kg	43000 (not including auxiliary counterweight of 1t)
Axle load	1st and 2nd Axle	kg	17000
	3rd and 4th Axle		26000
Engine Model			WD615.338
Engine rated power		kw/(r/min)	276/2200
Engine rated torque		N.m/(r/min)	1500/1400
Engine rated rotational speed		r/min	2100
Max. travel speed		km/h	80
Min. steady travel speed		km/h	3
Min. turning diameter		m	24
Min. turning diameter at boom tip		m	29
Min. ground clearance		mm	327
Max. grade ability		%	40
Approach angle		°	19
Departure angle		°	11
Braking distance (at 30 km/h, full load )		m	≤10
Oil consumption per 100km		L	45

Max. total rated lifting capacity				t	70
Min. rated working radius				m	3
Turning radius at turntable tail				mm	3550
Max. load moment		Base boom		KN.m	2303
		Fully-extended boom			1129
		Fully-extended boom + Jib			580.2
Outrigger span		Longitudinal		m	6.1
		Lateral			7.3
Hoist height		Base boom		m	11.8
		Fully-extended boom			44.2
		Fully-extended boom + Jib			59.4
Boom length		Base boom		m	11.6
		Fully-extended boom			44.5
		Fully-extended boom + Jib			59.5
Jib offset angle				°	0, 15, 30
Time for boom raising				s	60
Time for boom extending fully				s	80
Max. slewing speed				r/min	2
Telescoping time		Fully extended		s	150
		Fully retracted			100
Outrigger extending and retracting time	Outrigger		Extending	s	30
	beam		Simultaneously
			Retracting		20
			Simultaneously
	Outrigger		Extending		35
	jack		Simultaneously
			Retracting		30
			Simultaneously
Hoisting speed	Main winch		No load	m/min	130
(single line			Full load		75
	Auxiliary winch		No load		108
			Full load		98
Exterior noise level				dB (A)	≤122
Noise level at seated position				dB (A)	≤90