Tower Crane PT4810

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, PT4810

The PT4810 flat top tower crane has horizontal arm support, trolleying, top slewing and hydraulic jacking. The construction tower crane’s maximum jib length is 48m. The load moment is 540 KN.m, and its freestanding height is 30m, while it can reach a maximum height of 120m (2 falls) with attachments.

Without balanced weight and anchors, the slewing flattop crane weighs 21.41t and has a total capacity of 25.1 Kw. With its advanced parameters, stable performance, and excellent quality, the PT4810 topless crane works well for small to mid-sized construction businesses. This affordable flat top tower crane also features advanced safety devices and is easy to maintain.

1. General Specifications of the Flat Top Tower Crane

Item	Performance	Parameters
1	Max. Load	4t
2	Max. jib length	48m
3	Tip load	1.0t
4	Freestanding height	30m
5	Max. height	120m
6	Size of mast section	1.5×1.5×2.2m
7	Material of mast section	All mast sections are manganese Q345B, ∠ 160×12 angle steel; Jib is Q345B.

2. Main Parameters of the Flat Top Tower Crane

Item		Unit	Magnification
			α=2	α=4
Rated load moment		KN. m	540
Max. load		t	2	4
Work radius		m	3 – 48
Load at max. radius		t	1.0
Radius at max. load		m	27.3		14.79
Hoisting height	Independent	m	30
	Adhered		120		60
Outer size of whole crane	Chassis	m	6.0×6.0
	Height of whole crane		Independent		38.284
			Adhered		128.284
	Tip of jib to the slewing center		48.74
	Tip of balanced jib to slewing center		11.425
Self-weight of whole crane	Independent	t	21.41
	Adhered	t	46.36
Balanced weight		t	8.0
Other	Total power of motors	Kw	25.1
	Work grade at max. height	Grade	≤6
	Allowable work temperature	℃	-20 ～ 40

3. Load Performance of the Flat Top Tower Crane
3.1 Load charts
Load chart of 4 falls

Radius (m)	3-14.79	15	16	17	18	19	20
Load (t)	4	3.94	3.67	3.44	3.23	3.04	2.87
Radius (m)	21	22	23	24	25	26	27
Load (t)	2.72	2.58	2.45	2.34	2.23	2.13	2.04
Radius (m)	28	29	30	31	32	33	34
Load (t)	1.95	1.87	1.80	1.73	1.67	1.61	1.55
Radius (m)	35	36	37	38	39	40	41
Load (t)	1.50	1.45	1.40	1.35	1.31	1.27	1.23
Radius (m)	42	43	44	45	46	47	48
Load (t)	1.19	1.15	1.12	1.09	1.06	1.03	1.00

Load chart of 2 falls

Radius (m)	3-27.3	28	29	30	31	32	33
Load (t)	2	1.94	1.86	1.79	1.72	1.66	1.60
Radius (m)	34	35	36	37	38	39	40
Load (t)	1.54	1.49	1.44	1.39	1.35	1.30	1.26
Radius (m)	41	42	43	44	45	46	47
Load (t)	1.23	1.19	1.15	1.12	1.09	1.06	1.03
Radius (m)	48
Load (t)	1.00

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