Tower crane, 12T,QTZ250

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Feature:Tower Crane	Condition:New	Application:construction	Rated Loading Capacity:2.1T
Rated Lifting Moment:250t . m	Max. Lifting Load:12T	Max. Lifting Height:221m	Span:70m
Place of Origin:Jiangsu China (Mainland)	Brand Name:Tengda	Model Number:QTZ250(TC7021/6528/6036/5544/5050/4558/4060)	Warranty:ONE YEAR
After-sales Service Provided:Engineers available to service machinery overseas	Color:RED OR YELLOW

item		Unit	parameter
			a=2	a=4
rated hoisting moment		t^.m	250
working radius		m	3.15~70
Load capacity at max radius		t	2.1
Max load capacity		t	12
Hook height	Independent type, Traveling type	m	50,51
	Attached type		221	70
Working speed	Hoisting	m/min	0~100	0~50
	Trolleying	m/min	0~50
	Slewing	r.p.m	0~0.6
	Traveling	m/min	12.5—25
Mechanism power	Hoisting	KW	55
	Trolleying	KW	5.5
	Slewing	KW	2×5or2×95Nm
	Traveling	KW	4×1.7/3.4
Standard section size		2×2×3

R	a	R (max)m	C (max)t	25	30	35	40	45	50	55	60	65	70
70	4	17.8	12.00	7.05	6.23	5.15	4.34	3.71	3.20	2.79	2.44	2.15	1.90
70	2	31.8	6.00	6.00	6.00	5.35	4.54	3.91	3.40	2.99	2.64	2.35	2.10
65	4	19.23	12.00	8.92	7.21	5.99	5.07	4.36	3.79	3.32	2.93	2.60
65	2	35.9	6.00	6.00	6.00	6.00	5.27	4.56	3.99	3.52	3.13	2.80
60	4	21.35	12.00	10.05	8.01	6.79	5.78	4.98	4.13	3.83	3.40
60	2	39.85	6.00	6.00	6.00	6.00	5.98	5.18	4.33	4.03	3.60
55	4	22.87	12.00	10.86	8.45	7.37	6.28	5.43	4.76	4.20
55	2	42.7	6.00	6.00	6.00	6.00	6.00	5.63	4.96	4.40
50	4	23.04	12.00	10.96	8.90	7.43	6.34	5.48	4.80
50	2	43	6.00	6.00	6.00	6.00	6.00	5.68	5.00
45	4	23.42	12.00	11.16	9.09	7.58	6.46	5.60
45	2	43.75	6.00	6.00	6.00	6.00	6.00	5.80
40	4	23.8	12.00	11.30	9.25	7.73	6.60
40	2	40	6.00	6.00	6.00	6.00	6.00