High efficiency tower machine

The utility model provides a high efficiency tower machine, it includes install the body of the tower on the basis, by the lower supreme hydraulic lifting up device who installs in proper order on thebody of the tower, stock, lower seat, standard festival hoisting device on, bearing, swing drives device, control chamber, central tower, install the jib loading boom in central top of the tower portion, install amplitude changing device, amplitude trolley, lifting hook on the jib loading boom to reach electrical control, hoisting mechanism, its characterized in that: the jib loading boom adoptstwo jib loading boom structures of being extended to both sides respectively by central tower, and has set up one set of amplitude changing device, amplitude trolley and lifting hook respectively withsymmetrical arrangement's mode on two jib loading booms, arrange in central top of the tower portion with two hoisting mechanism that corresponding side jib loading boom is formed a complete set respectively, control chamber a