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.