Machine models

Zoomlion QY30V431–QY50V532: boom mechanisms and carrier controls

What the QY50V532 boom diagram actually describes

Zoomlion's May 2012 training book divides this main boom into a base section and four sliding sections. A separate derricking cylinder changes the boom angle. The telescope cylinders extend the nested sections; they do not perform the derricking function.

This distinction helps identify which movement a seller means when reporting a boom problem.

The illustrated telescope mechanism combines two cylinders with wire ropes. Its first cylinder moves the first sliding section and carries the remaining sections with it. The second cylinder and rope arrangement coordinate the other sliding sections.

A description such as “hydraulic boom” leaves out that mechanical connection. The book also identifies welded upper and lower parts forming the U-shaped boom body.

The jib is another assembly, combining a lattice section with a rectangular telescoping section. The rooster sheave serves single-line hoisting at the boom head. It does not give that single line the crane's full multi-part lifting capacity.

Match the actual boom and reeving to the operating chart before planning a lift.

Source: Zoomlion QY50V532 Boom Structure and Installation, Version 01, May 2012.

QY50V532 carrier instruments and hydraulic equipment

The original sales booklet describes a four-axle carrier, not a three-axle truck. Its technical table labels the turning measurement as a diameter. Treating the same number as a radius would double the space implied by the published figure.

The booklet also separates maximum main-boom height from the height with a jib installed.

For servicing access, the engine hood's side door opens upward toward the electrical equipment. The hydraulic specification describes a change from three pumps to four and a filter-condition warning at the oil tank. Those details identify this V532 arrangement more closely than an unqualified comparison of rated tonnage.

Source: Original Zoomlion QY50V532 sales booklet, chassis, hydraulic equipment and technical parameters.

Che Xia's May 2011 chassis-electrical training explains the two needles in the air-pressure gauge: one monitors the front reservoir circuit, the other the intermediate and rear circuit. The low-air warning must clear at the prescribed pressure before driving. A separate parking-brake lamp concerns the applied parking brake.

Neither should be confused with the PTO indicator, which reports the power take-off selection.

The training also marks emergency steering and the fifth-outrigger retraction indicator as optional equipment. An unused lamp position therefore does not prove that its associated system is installed. Read the fitted controls and machine documentation together when identifying the carrier.

Source: Zoomlion QY50V532 Crane Chassis Electrics, Che Xia, May 10, 2011.

Earlier reference entries and original manufacturer corrections
Model and field	Earlier entry	Manufacturer figure and scope	Source

Entries in this reference
Listing-entry count
7

Short answer

Zoomlion QY30V431–QY50V532: boom mechanisms and carrier controls: hydraulic truck cranes.

Selected configuration figures
Configuration	Documented field and quantity
QY30V431	Gross Power 266.9 hp Operating Weight 64,816 lb
QY30V521	Gross Power 276.3 hp Operating Weight 69,887 lb
QY30V531	Gross Power 266.9 hp Operating Weight 69,887 lb
QY40V521	Gross Power 325.9 hp Operating Weight 81,064 lb
QY40V531	Gross Power 331.3 hp Operating Weight 81,064 lb
QY50V522	Gross Power 325.9 hp Operating Weight 89,221 lb
QY50V532	Gross Power 331.3 hp Operating Weight 89,221 lb

QY30V431 to QY50V532 specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Zoomlion	QY30V431 to QY50V532	7	QY30V431, QY30V521, QY30V531, QY40V521, QY40V531, QY50V522, and 1 more

Boom
Specification	QY30V431	QY30V521	QY30V531	QY40V521	QY40V531	QY50V522	QY50V532
Min Height @ Max Raise Angle	37.08 ft	36.42 ft	36.42 ft	38.39 ft	38.39 ft	38.06 ft	38.06 ft
Max Height @ Max Raise Angle - No Jib	113.52 ft	132.88 ft	132.88 ft	133.21 ft	133.21 ft	138.13 ft	138.13 ft
Min Working Radius	9.85 ft	9.85 ft	9.85 ft	9.85 ft	9.85 ft	9.85 ft	9.85 ft
Max Working Radius	91.87 ft	104.99 ft	104.99 ft	98.43 ft	98.43 ft	104.99 ft	104.99 ft
Max Elevating Angle	80 degrees	80 degrees	80 degrees	80 degrees	80 degrees	80 degrees	80 degrees
Max Lift Capacity	70,548 lb	70,548 lb	70,548 lb	88,185 lb	88,185 lb	121,254 lb	121,254 lb
Number Of Sections	4+jib	5	5	5 + 2 jibs	5 + 2 jibs	5	5

Dimensions and weight
Specification	QY30V431	QY30V521	QY30V531	QY40V521	QY40V531	QY50V522	QY50V532
Transport Length	42.33 ft	42.66 ft	42.66 ft	42.33 ft	42.33 ft	43.64 ft	43.64 ft
Transport Width	8.21 ft	8.21 ft	8.21 ft	9.03 ft	9.03 ft	9.03 ft	9.03 ft
Transport Height	11.16 ft	11.16 ft	11.16 ft	12.01 ft	12.01 ft	11.98 ft	11.98 ft
Ground Clearance	0.73 ft	0.73 ft	0.73 ft	0.94 ft	0.94 ft	0.86 ft	0.86 ft
Width W/ Outriggers Extended	20.02 ft	20.02 ft	20.02 ft	21.66 ft	21.66 ft	22.64 ft	22.64 ft
Carrier Length	35.29 ft	35.29 ft	35.29 ft	36.89 ft	36.89 ft	38.06 ft	38.06 ft

Carrier Engine
Specification	QY30V431	QY30V521	QY30V531	QY40V521	QY40V531	QY50V522	QY50V532
Model	WP10.270	WD615.50	WP10.270	WD615.44	WP10.336	WD615.44	ZLJ5414
Gross Power	266.9 hp	276.3 hp	266.9 hp	325.9 hp	331.3 hp	325.9 hp	331.3 hp
Power Measured @	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm	2,200 rpm
Max Torque	811.4 lb-ft	922 lb-ft	811.4 lb-ft	922 lb-ft	922 lb-ft	922 lb-ft	922 lb-ft
Torque Measured @	1,600 rpm	1,600 rpm	1,600 rpm	1,600 rpm	1,600 rpm	1,600 rpm	1,600 rpm

Operational
Specification	QY30V431	QY30V521	QY30V531	QY40V521	QY40V531	QY50V522	QY50V532
Operating Weight	64,816 lb	69,887 lb	69,887 lb	81,064 lb	81,064 lb	89,221 lb	89,221 lb
Number Of Axels	3	3	3	4	4	4	4

Variants — Source comparison annotation
Source guide	Differing-field count reported
QY30V431 to QY50V532	16

Ratios
Figure	QY30V431	QY30V521	QY30V531	QY40V521	QY40V531	QY50V522	QY50V532
Engine horsepower per 1,000 lb of weight	4.1	4.0	3.8	4.0	4.1	3.7	3.7