12T topless tower crane GHP6040 includes stationary type, travelling type and inner climbing type. Please see following main technical parameters: 

1. Free height: 52.15m 
2. Max load: 12t 
3. Tip load: 4t 
4. Jib length: 60m 
5. Mast section: 2*2*3m 

Besides, we can also supply topless tower crane of 8t, 10t, 18t and 24t. If you have any inquiry, please contact me for details, thanks. Any inquiry will be replied within two working days.