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1: self-assembly system 2: controllable free slewing, 3: free-fall function 4: ergonomic design, 5: high efficiency - details see: https://www.machineto.com/high-quality-400-ton-zoomlion-crawler-crane-quy400-10102283

ZOOMLION QUY400 Crawler Crane:

1. This crawler crane is equipped with a VOLVO electronic fuel injection engine which has such advantages as strong power, low noise, slight vibration and excellent environmental protection performance.

2. The slewing ring imported from Germany has high reliability and long service life.

3. The PLC controller imported from Finland, which is manufactured specially for military industrial products, has strong shock resistance and anti-interference ability and can adapt to various adverse working conditions.

4. The automatic exhaust device fitted in hydraulic system can discharge the air in the system in time so as to efficiently prevent the hook from getting out of control.

5.The hydraulic system is fitted with several detection points, from which the signals detected will be transmitted to PLC controller. After analyzing the signal, the PLC controller, which has applied the limit load control technology, can make the engine keep in optimal working condition.

6. The contactless and Bus-controlled electrical control lever, which has a wide adjusting range, can ensure excellent jogging performance. The control lever is fitted with a function key, which can avoid inadvertent operation because the operation of the control lever will be of no use without the function key pressed. Such control lever is practical and has a long service life.

7. When PLC control system or touch screen fails, emergency measures can be taken to ensure that the system functions normally.

8. This crawler crane is equipped with a heating & cooling air conditioning system, which has two sets of heating control system. When the air conditioning is used in cold weather, the two sets of heating control system can be used to guarantee optimal heating effect.

9. The crawler crane can carry out self-assembly/dismantling motion without the help of other auxiliary crane; the connecting parts are driven by the power pin cylinder; and the auxiliary mechanism of boom frame is designed distinctively. All the three features make the assembly, dismantling, conversion of the machine on the site and transportation between sites quicker and more convenient.

10. The distinctive method of mounting the ballast is of simplicity, reliability, so the ballast can be fitted and removed easily

Parameter:

Item			Value	Remarks
Max. lifting capacity /Radius		Without superlift counterweightt×m	400×6
		With superlift counterweightt×m	400×8
Main boom lengthm			24~84
Length of main boom with light boom head		Without superlift counterweightm	48~102
		With superlift counterweightm	78~126
Deadweight with basic boomt			350
Fixed jib lengthm			12~36
Max. lifting capacity of fixed jibt			80
Offset angle of Fixed jib°°			10,30
Max. length of main boom with fixed jib		Without superlift counterweightm	72+36
		With superlift counterweightm	84+36
Luffing jib length		Without superlift counterweightm	24~66
		With superlift counterweightm	24~84
Max. lifting capacity of luffing jib		Without superlift counterweightm	140
		With superlift counterweightm	180
Main boom angle under luffing jib working condition °			65,75,85
Max. length of main boom with luffing jib		Without superlift counterweightm	54+66
		With superlift counterweightm	84+84
Max. speed of single rope on drum	Main winchm/min		0~140
	Auxiliary winchm/min		0~140
	Derricking winchm/min		2×0~60
	Luffing winchm/min		0~125
	Superlift derricking winch m/min		0~146
	Hoisting winch for tip boom m/min		0~110
Slewing speedrpm			0~1.0
Traveling speedkm/h			0~1.4
Gradeability%			20%
Ground pressureMPa			0.149
Overall dimensions (L×W×H) of basic machine in transportation conditionmm			13900×3100×3240	With mast
Engine	Rated power/ rotational speedkW/rpm		343/1800
	Torque/ rotational speedNm/rpm		2150/1100~1500
	Emission standard		EU Stage II
Crawler gauge ×ground contact length ×track shoe width mm			7800×9500×1200

Lifting capacity table of main boom with heavy boom head

(Counterweight 140+central ballast 40t)

Boom length(m)	24	30	36	42	48	54	60	66	72	78	84	Boom length(m)
falls Radius	32	20	20	16	14	14	12	12	10	8	8	falls Radius
6	400	305										6
6.5	340	285										6.5
7	305	270	268	264								7
8	260	243	238	231	228							8
9	230	216	212	206	204	196						9
10	205	195	192	186	184	177	160	147				10
11	185	178	175	169	167	160	152	145	134			11
12	170	163	160	155	152	146	139	133	127	120	106	12
14	142	139	136	132	129	124	118	113	108	103	98	14
16	118	118	116	113	111	107	102	97.5	93.5	90	85	16
18	100	100	99	98	97	93.5	89.5	85.5	81.5	78	75	18
20	86	86	86	85	84	82	79	76	72.5	69	66	20
22	76	76	75	74	73	72.5	70	67.5	65	62	59	22
24		67	66	65	65	64.5	62.5	60.5	58	55	53	24
26		60	60	59	58	57.5	56	54.5	52.2	50	48	26
28			54	52.5	52	51.5	50	49	47.5	45	43	28
30			49	47	47	46.5	45	44	43	41	39	30
32			44.5	43	43	42	40.5	40	39	37	35.5	32
34				40	39	38.5	37	36	35.5	33.5	32	34
36				36	36	35	33.5	33	32	30.5	29	36
38				34	33	32	31	30	28.5	27.5	26.5	38
40					31	29.5	28.5	27.5	25	25	23.5	40
44						25.5	24	23	21.5	20.5	19.5	44
48						22.5	20.5	19.5	18.5	17	16	48
52							18	16.5	15.8	14	12.7	52
56								14	13.2	11	10	56
60									11	9	7.5	60
64									9	7	5.7	64
68										5.5	4.5	68
72											3.4	72