tower crane QTZ80 Model: QTZ80; Jib length: 56~ 60m; tower cranes Height: 45m; Tip load: 1.0~ 1.3t; Max load: 6t. tower cranes for sale Mast sections adopt square steel, which is overall structure ( 1800 x 1800 x 2800) or mobile tower cranes single angle iron split structure ( 1600 x 1600 x 3000) , construction tower cranes main materials may select Q345B. china tower cranes The mechanism adopt domestic famous factory products, reliable in performance, good governing performance and shockless. tower cranes suppliers Frame and lower table adopt advanced design concept and adopt standard container transport, tower crane manufacturers save long-distance transport freight.