We are professional manufacturer of tower crane and mast section in China, we also accept OEM & ODM order.
1. Model: TC7520-12(QTZ250)
2. Dimensions: standard section 2,000mmX2,000mmX3,000mm
3. Material: All main chord be made of  Q345B steel
4. Parameter: Maximum hoisting capacity 12 tons, the longest jib is 75m, maximum independent lifting height 48m, maximum attached height 183m
5.  Application: Suitable for construction of medium and high-rise commercial, civil buildings and such large projects as roads and bridges, power stations, etc. especially for intensive tower crane groups.
Quick Detail:
 1. Mast  standard section of 2,000mmX2,000mmX3,000mm.
2. The longest jib is 75m, the jib  combination length decreases progressively 5 meters each, and the minimum jib length is 50m..
3. The maximum hoisting capacity is 12 tons.
4. The maximum lifting capacity at a distance of 75m is 2.0 ton
5. The rated hoisting moment is 250t.m
6. The maximum independent height is 60m and the maximum attached height is 200m.
7. Hoisting mechanism: Adopting a variable frequency motor   55KW . Slew mechanism: Adopting a torque motor    7.5 KWX2 .Luffing mechanism: Adopting a variable frequency motor   7.5KW.
8. Tower crane foundation type: Leg fixing type
Our main products are:
Hammer head tower crane
QTZ63(TC5013),QTZ80(TC5610,TC5610A,TC6010,TC6010A)QTZ100(TC6013-6,TC6013A-6,TC6013-8,TC6013A-8)QTZ125(TC6015-8,TC6015A-8,TC6512-10,TC6512A-10)QTZ160(TC7013-10,TC7013-12)QTZ250(TC7520-12,TC7520-16)
Flat head tower crane QTZ125(TCP6015-8,TCP6512-10)QTZ160(TCP7013-10,TCP7013-12)
 
TC7520-12(QTZ250)
 
The product is a new model. The lifting jib has good feasibility and availability. Lifting mechanism and luffing mechanism adopt variable frequency motor, slewing mechanism adopts torque motor.
 
The maximum hoisting weight is 12T. The longest jib is 75m, can meet the application for the building with large span. Adopting the H3/36B plate type standard section which can be exchangeable with POTAIN's one. The transportation is convenient and use is simple and safe!
 
TC7520-12(QTZ250)
 It is suitable for construction within large scale and crossing intensive tower crane group, like super high - rise building, large hydropower station, large bridge construction, port with heavy hosting weight, metallurgy company and petroleum company in large scale.