QTZ80(5512) self-erecting 8t construction tower crane, hammer head type, max load 8t, standard mast section 1.835m*1.835m*2.5m. the main limb material square tube 135*12mm Manganese steel. it is applicable for Building height up to 50 floors (151.2m), loading capacity up to 8t, jib length is 55m. If you have any need of 8t tower cranes, please don't hesitate to contact us.