Inner climbing tower crane has three attached frames, from down to up respectively are load bearing attached frame, antirotation attached frame and transition attached frame. The distance between two adjacent attached frames is nine to twelve meters, three attached frames all are on the girder Steel, and they connect with the girder Steel by bolts. The girder Steel is put on the concrete beam of core tube elevator hoistway, and they connect with each other by bolts to assure that connection of girder steel and building structure is reliable. All attached frames can be dismantled to assure the cycle use and function conversion. 

    Load bearing attached frame is mainly to bear the vertical-down acting force generating in every kind of working condition. Antirotation attached frame is mainly to bear the torsional moment and bending moment generating in every kind of working condition, and serve as the climbing pathway in the process of climbing and at last it serves as antirotation attached frame. Tower crane only uses load bearing attached frame and antirotation attached frame to fix tower body in normal working condition, but before climbing we need to install the third attached frame to serve as transition attached frame, so as to assure the reliability of climbing track. Climbing height is the distance between load bearing attached frame and antirotation attached frame. 

1. Overload protection:If the material is over the capacity, the crane will give a sharp warning for protection itself
2. Emergency brake: If the operation staff encounter some emergency situation, we could start the emergency brake system to protection the related treasure.
3. Control Method: Room control or remote control to avoid any injure to the operation staff
4. Main lifting motor: with thermal protection and currency protection

1. What’s the information should I provide when inquiry?
More details or drawings, more better.
A: Lift capacity
B: span
C: lift height
D: power source
Or other specials you give us will be more appreciated.
2. How many operating methods for my selection?
Standard operating methods:
A: pendent controller with push buttons.
B: remote control with push buttons
C: cabin(space capsule seat) control with joystick.
Choose any type as you like.
3. Can this type work in hazardous environment?
Sure! Can customize for you, acid proof or explosion proof, no problem for that.
4. How long is your warranty?
Our warranty is 12 months after received the goods.
5. Can you provide the serious lifting tools?
Sure, we can provide any lift tools such as lift sling belt, lift clamp, grab, magnet or other specials as your requirement!