welcome overseas widely used models QTZ series tower cranes in sale

Spare parts

1.Most structure of tower crane are made of angle steel, such as mast string,mast member; the material is Q345B(16Mn).
2. Most components of the tower crane are connected by pins. The pins are produced by special processed combining carburizing, sulfurizing and nitridation. The surface of pins is wear-proof, can be repeatedly assembled and dismantled without deformation.

Spare parts

  Trolley mechanisms use torque motor and planetary reducer placed in the drum. Its features include simple structure, small volume, light weight, stable drive, good speed regulation properties, which enables convenient, flexible, safe and reliable operation as well as easy maintenance.

Spare parts

  The hoisting mechanism is an AC variable-frequency mechanism, realizing complete stepless speed regulation and fully utilizing motor drive property, featured with wide speed-regulating range and high working efficiency. The mechanical transmission applies mature domestic technique, in which the spur gear or bevel gear work reliably, the rope drum adopts a special Z-shaped grooving technique. The mechanism is equipped with complete and reliable security protection, brake logic control system, capable of realizing “suspension” in the air, and overspeed with light load and largely improving efficiency of tower crane. 

Delivery and package.

Delivery:within 7-10 days after receiving advance payme.

Package:Standard export package.

  Pls tell me your requirments such as the building heught,max load,lift height,span,other specials you want.We will provide you with suitable model according to your request.If have any questions,our technician will help you solve.

On sale.

  Free of charge to accompany clients to inspect machines,to assist in the development of construction plan,to pack machine and delivery as well as assist customers to formulate the installation schedule.

After sale.

1）- One year warranty for the machines.
2）- Offer free quick-wear accessories.
3） Low charge for continue maintenance when warranty is expired.
4）- Exclusive engineer support at any time.
5）Provide free training to end-users.