Self-Erecting Tower Crane Qtz125 (TC6515)

• Customization: Available
• After-sales Service: 24 Hours
• Warranty: 1 Year
• Model NO.: QTZ125(TC6515)
• Certification: CE, ISO9001, ISO9001: 2000
• Condition: New
• Maximum Lifting Height: 200-250m
• Maximum Lifting Weight: 10t
• Installation: Jack-Up
• Moving Type: Wheel
• Type: Top-Slewing Crane
• Free Standing Height/Max. Height: 50m/150m
• Jib Length: 3---65m
• Size of Mast Section: 1835*1835*2500mm
• Application: Construction
• Power Source: Hydraulic
• Sling Type: Wire Rope
• Tower Crane Type: Slewing Tower Crane
• Transport Package: Container
• Specification: QTZ125
• Trademark: MINGWEI
• Origin: China
• HS Code: 8426200
• Production Capacity: 15 Sets/Month

Product Description

QTZ125 tower crane was designed by China Construction Scientific Research Institute Construction Mechanization Sub-Institute and developed by our company. It is a multiple-function hydraulic auto-lift tower machine characteristic of upper-circumgyrating, horizontal arm and variable range with small cabin. The machine is scientific in design and beautiful in appearance. The independent driver's room and its broad visual field provide a nice work environment for the operator. The crane is convenient to operate and easy to maintain and repair. It is an ideal construction machine for construction enterprises.

The machine has four kinds of work structures: Lifting, circumgyrating, variable ranges, and top lifting. The four structures can work in combination as well as independently so as to improve work efficiency. The top lifting structure is used to increase the height of the tower or lower the tower. The lifting control of this machine has three choices: Frequency conversion stepless speed adjusting, double speed wire winding motor speed adjusting, and tri-speed motor speed adjusting.

The circumgyrating control has two options: Frequency conversion stepless speed adjusting and wire winding motor speed adjusting. The range adjustment control has two selections: Frequency conversion stepless speed adjusting and tri-speed motor speed adjusting. The above settings can be made according to the demands of the customers.

All the models work stably and can fully satisfy different needs. The lifting arm can rotate 540 to the left and right. The circumgyrating and range adjusting are agile and reliable, and the hoisting positioning is accurate. Thus the crane can satisfy the need for vertical and horizontal transportation in construction operation.

Tower Crane Model:QTZ125(TC6515)
Free Standing Height/Max. Height:50m/150m
Jib Length :3---65m
Mast Section/Material:∠125×125×12 /Q345B
Size of Mast Section, L×W×H:1835×1835×2500
Collar Ties Situation: Distance between first collar tie and the ground 35000mm
          Other Distance 25000mm
         Suspension Height no more than 25m
Balanced Weight /Jib Length: 22.5t/65m.20.4t/61m.17.7t/55m
Total Power:62Kw

Loading Chart:
Jib Length 65m                               
2 Falls

m	3-26.09	27	28	29	30	31	32	33	34	35
t	5	4.807	4.608	4.424	4.251	4.09	3.938	3.796	3.662	3.536
m	36	37	38	39	40	41	42	43	44	45
t	3.417	3.304	3.198	3.096	3	2.908	2.821	2.738	2.659	2.583
m	46	47	48	49	50	51	52	53	54	55
t	2.51	2.441	2.375	2.311	2.249	2.191	2.134	2.079	2.027	1.976
m	56	57	58	59	60	61	62	63	64	65
t	1.928	1.881	1.835	1.791	1.749	1.708	1.668	1.63	1.593	1.557

4 Falls

m	3-14.2	15	16	17	18	19	20	21	22	23	24
t	10	9.422	8.78	8.213	7.709	7.259	6.853	6.486	6.152	5.848	5.569
m	25	26	27	28	29	30	31	32	33	34	35
t	5.312	5.075	4.855	4.651	4.461	4.284	4.119	3.963	3.817	3.68	3.55
m	36	37	38	39	40	41	42	43	44	45	46
t	3.428	3.312	3.203	3.099	3	2.906	2.817	2.731	2.65	2.572	2.497
m	47	48	49	50	51	52	53	54	55	56	57
t	2.426	2.358	2.292	2.229	2.169	2.111	2.055	2.001	1.949	1.899	1.851
m	58	59	60	61	62	63	64	65
t	1.804	1.759	1.716	1.674	1.633	1.593	1.555	1.518

Jib Length61m                              
2 Falls

m	3-26.96	27	28	29	30	31	32	33	34	35
t	5	4.922	4.787	4.596	4.418	4.251	4.095	3.948	3.809	3.679
m	36	37	38	39	40	41	42	43	44	45
t	3.556	3.439	3.329	3.224	3.125	3.030	2.940	2.854	2.772	2.694
m	46	47	48	49	50	51	52	53	54	55
t	2.619	2.547	2.479	2.413	2.349	2.289	2.230	2.174	2.120	2.067
m	56	57	58	59	60	61
t	2.017	1.968	1.921	1.876	1.832	1.790

4 Falls
 

m	3-14.66	15	16	17	18	19	20	21	22	23	24
t	10	9.755	9.092	8.507	7.987	7.522	7.103	6.724	6.380	6.065	5.777
m	25	26	27	28	29	30	31	32	33	34	35
t	5.512	5.267	5.040	4.830	4.634	4.451	4.280	4.120	3.969	3.827	3.693
m	36	37	38	39	40	41	42	43	44	45	46
t	3.567	3.448	3.334	3.227	3.125	3.028	2.936	2.847	2.763	2.683	2.606
m	47	48	49	50	51	52	53	54	55	56	57
t	2.533	2.462	2.394	2.329	2.267	2.207	2.149	2.094	2.040	1.988	1.939
m	58	59	60	61
t	1.890	1.844	1.799	1.756

Jib Length 55m                           
 2 Falls
 

m	3-28.7	29	30	31	32	33	34	35	36	37
t	5	4.941	4.751	4.573	4.407	4.251	4.103	3.965	3.834	3.710
m	38	39	40	41	42	43	44	45	46	47
t	3.592	3.481	3.375	3.274	3.178	3.087	3.000	2.916	2.837	2.760
m	48	49	50	51	52	53	54	55
t	2.687	2.617	2.549	2.485	2.422	2.362	2.305	2.249

  4 Falls

 

m	3-15.58	16	17	18	19	20	21	22	23	24	25
t	10	9.717	9.095	8.543	8.048	7.603	7.200	6.834	6.500	6.194	5.912
m	26	27	28	29	30	31	32	33	34	35	36
t	5.652	5.411	5.187	4.979	4.784	4.602	4.432	4.272	4.121	3.979	3.845
m	37	38	39	40	41	42	43	44	45	46	47
t	3.718	3.598	3.483	3.375	3.272	3.174	3.080	2.991	2.905	2.824	2.745
m	48	49	50	51	52	53	54	55
t	2.670	2.598	2.529	2.463	2.399	2.338	2.279	2.222

Basic Parameters:   
Slewing Bearing
Hydraulic Jacking Mechanism
Trolleying Mechanism

Mechanical Factor		Hoisting Mechanism		M5
		Slewing Mechanism		M4
		Trolleying Mechanism		M4
Hoisting Mechanism	Motor	Model		YZRDW250M-4/8
		Power(kW)		37/37
	Height Limiter	Model		FKDX-G
	Wire Steel Rope	Specification		6X37-16-1770-I
		Max. Attraction (N)		25000
	Falls	a=2		a=4
	Hoisting Speed(m/min)	80	40	40	20
	Rated Load(t)	2.5	5	5	10
	Min. Rate of Descent	m/min		≤5
Slewing Mechanism	Motor	Model		YZR160M1-6
		Power(kW)		5.5×2
		Rotating Speed(r/min)		908
	Reducer	Model		XX4-120AI
		Drive Ratio		195
	Coupler	Model		YOX280A
	Rotating Pinion	Modulus     m		12
		Number of Teeth     z		17
		Modification coefficient		+0.5
	Rotating Speed	r/min		0.61
	Single row four-point contact ball slewing bearing	Model		011·45·1400
		Modulus     m		12
		Number of Teeth     z		131
		Modification coefficient		+0.5
	Motor	Model		Y132M2-4
		Power(kW)		7.5
	Rated Oil Cylinder Working Pressure	Mpa		25
	Max. Jacking Force	t		63
	Oil Cylinder Stroke	mm		1600
	Locating Distance	mm		2100
	Oil Cylinder Diameter	mm		φ180
	Oil Cylinder Piston Diameter	mm		φ125
	Jacking Speed	m/min		0.4
	Motor	Model		YZTDE180M-4/8/24
		Power(kW)		5/3.7/1.1
	Wire Steel Rope	Specification		6×19-9.3-1550
	Reducer	Model		XX3-14.40
		Drive Ratio		39.7
	Trolleying Speed	m/min		58.6/29.3/8.79