SCM-C7022 tower crane is a kind of self-telescoping crane slewing from the top which is designed and manufactured by SCM. The maximum load capacity is 16t, tip load capacity is 2.2t, and the maximum working range is 70m. Mast section is designed in two sizes, 2x2x3m and 2.5x2.5x5.78m. As the 2m mast section, two types are available for customer option. The first type is composed by one 7.5m basic mast and 14 mast sections, with 51.7m height. The second type is composed by two 7.5m basic masts and 12 mast sections, with 53.2m height. All the mechanisms of the C7022 adopted advanced technology with reasonable structures, superior performance and exact positioning. SCM-C7022 can be rail-traveling, stationery and inner-climbing type.