Construction Machine Tower Crane/Tower Crane/Building Crane/Construction Machine Qtz400L25

• After-sales Service: 24 Hours
• Warranty: One Year
• Certification: ISO9001: 2000
• Condition: New
• Maximum Lifting Height: 150-200m
• Maximum Lifting Weight: 8t
• Model NO.: QTZ400L25
• Type: Tower Crane
• Size of Mast Section: 2.0*2.0*3.0 M
• Jib: 70m
• Free Standing Height: 50m
• Attached Height: 200m
• Application: Construction Usage
• Sling Type: Wire Rope
• Power Source: Hydraulic
• Transport Package: 40hq Container
• Specification: CE ISO9001
• Trademark: Mingwei
• Origin: China
• HS Code: 8426200
• Production Capacity: 200 Units /Month

Product Description

Construction Machine Tower Crane/Tower Crane/Building Crane/Construction Machine Qtz400L25
QTZ400L25 tower crane Technical Parameter:

1. Freestanding height: 78.9m; Travelling height: 80.09m
2. Jib length: 75m/70m/60m/50m/40m
3. Max. Load: 25 t
4. Tip load: 4t
5. Radius: 3.9-75m
6. Mast section: 2.5*2.5*6.0m
7. Anchorage height: 126.9m/174.9m/222.9m
8. Type: Stationary, travelling, other types you need

Main mechanism details
1. Electrical mechanism

Our company use France Schneider contactor, and tests each hoisting mechanism under no-load, static load, dynamic load, etc. To ensure the brake reliable, safe and durable.

2. Hoist mechanism

Brake wheel adopts cast steel materials, surface quenching and external circular, control the beating degree strictly. At the same time, also carrying on balance tests. Each hoisting mechanism is carrying on no-load, static load, dynamic load and so on, guarantee the reliability, safety and durableness.

3. Derricking mechanism

Derricking mechanism with free maintenance planetary reducer and cone brake motor, is well-knit in structure, stable and powerful in trolley, high endurance and low failure rate.

4. Slewing mechanism

Slewing motor adopts winding motor and hydraulic transmission. Slewing is stable and powering.

5. Operation device

Cabin with humanized design, is convenient and comfortable, facilitate for safe driving.

6. Mast section
Welding process use high-strength wire. Main joints use special steel and special process.

Product Parameter 

Rated hoisting moment (kN. m)		4000
Max hoisting moment (kN. m)		4575
Max height of hoisting (m)		Stationary			73
		Anchorages			200
Working Radius (m)		Min Radius			3.5
		Max Radius			70
Max hoisting capacity (t)		Max height of hoisting		≤ 100m	25
				> 100m	12.5
QP2580Hoisting	Fall	2			4
	Lifting Weight /Speed (t/m/min)	1/80	6.25/53	12.5/40	2/40	12.5/27	25/13.5
	Power (kW)	63
BP110Trolleying	Speed (m/min)	0~100
	Power (kW)	11
HPW55B. 100Slewing	Speed (r/min)	0~0.72
	Power (kW)	3× 5.5
Climbing	Working Pressure (MPa)	31.5
	Speed (m/min)	0.46
Counter-weight	Max Working Radius (m)	70	60	50		40
	Counter-weight (t)	28.5	24	19		14.5
Total Power (kW)		90.5 (Excluding Climbing Mechanism)
Design wind speed at the top of the crane (m/s)		Climbing				14
		In Service				20
		Out Of Service		0~20m		36
				20~100m		42
				100m~		46
Working Temperature (º C)		-20~+40
Main supply		~380V/50Hz

Radius and Capacity
70m jib
 

(m)	3.5~17.6		18	20	22	25	28	30
(t)	12.5
(t)	25		24.32	21.48	18.19	16.46	14.34	13.17
(m)	33	35	38	40	43	45	48	50
(t)	12.5	12.02	10.93	10.30	9.46	8.97	8.30	7.90
(t)	11.69	10.85	9.76	9.12	8.29	7.79	7.13	6.73
(m)	53	55	58	60	63	65	68	70
(t)	7.37	7.04	6.59	6.32	5.95	5.72	5.40	5.20
(t)	6.19	5.87	5.42	5.15	4.77	4.54	4.22	4.03

60m jib
 

(m)	3.5~17.9		18	20	22	25	28	30
(t)	12.5
(t)	25		24.93	22.03	18.67	16.89	14.73	13.53
(m)	33	35	38	40	43	45	48	50
(t)	12.50	12.33	11.21	10.57	9.71	9.20	8.52	8.12
(t)	12.02	11.16	10.04	9.39	8.53	8.03	7.35	6.94
(m)	53	55	58	60
(t)	7.57	7.23	6.78	6.50
(t)	6.39	6.06	5.60	5.33

  50m jib
 

(m)	3.5~18.1		20	22	25	28	30	33
(t)	12.5
(t)	25		22.24	18.85	17.06	14.87	13.67	12.14
(m)	35	38	40	43	45	48	50
(t)	12.45	11.32	10.67	9.80	9.29	8.61	8.20
(t)	11.27	10.15	9.50	8.63	8.12	7.44	7.03

40m jib
 

(m)	3.5~18.3	20	22	25	28	30	33
(t)	12.5
(t)	25	22.51	19.08	17.27	15.06	13.84	12.30
(m)	35	38	40
(t)	12.5	11.46	10.80
(t)	11.42	10.29	9.63

Tower Crane Characteristics  
Compared to other company's construction machinery, MINGWEI construction machinery has the following features:
 
1. The using steel is 16M and Q235B which the manufacture is Shanghai Baosteel. After test for qualified, then can use.
 
2. Painting Process. After shot-blast cleaning, spraying anti-rust paint, then spray paint.
 
3.  Welding process use high-strength wire. Main joints use special steel and special process. Mingwei company is the first company to adopt mast sections and main chord robot automatic welding system in China. The system is reliable in performance and high efficiency with high degree of automation, so that one worker can observe several welding systems. The quality and efficiency of welding are greatly improved. In terms of the welding quality of main load structure, the products reach the advanced international standard.
 
4. Electric device. Use international well-known manufacturers' electrical products, such as Schneider.
 
5. Motor, deceleration devices use domestic famous manufacturers' products, eg:  Shanghai, Jiangxi Special Electric Motor Co., Ltd.,Tianjin etc, to ensure the long life.
 
6. For cab, electrical device box, acid cleaning and parkerising, then painting, to ensure a long usage life.
 
7. Machine total weight is 3-5 tons heavier than the same type of tower crane in other manufacturers.
 
8. Each device is in strict test,  then can packed to ship, to ensure that the trouble after leave the factory reduced to the minimum.
 
9. Reliable quality, advanced technology, reasonable price, the best configuration, high safety factor, cost-effective ---MINGWEI products is trust worthy, we can ensure the customers  buy the products assured and use happy.
 
 Our services 
1.  We can do all special design according to your  requirement
2. welcome visit our factory, learn about our factory and products. 
3. 24 hours on line or phone , technical support
After-Sales Service
1. The seller will send one of her professional technicians to the site of buyer to  guide the erecting work.
2. 12(twelve)months (except for wire rope and AC contactor) after the equipment be well erected and we will offer spare parts whole year long. 
3. lifelong time freely provide technical support .
 
Contact Us 
 
Shandong Mingwei Hoisting Equipment Co., Ltd
Ms. Catherine Du 
Mobile: [phone]
  
Our Products including Hammerhead Tower Crane, Flat Top Tower Crane, Inner Climbing Tower Crane, and Construction Building Hoist. 
 
If you want to buy tower crane, and find china tower crane dealer and tower crane seller, Shandong Mingwei is you best selected. Welcome for your inquiry. We will supply the high quality tower crane of reasonable price. Sincerely welcome your inquiry to our products!