What Is an Erection Tower?

Self-erecting tower crane refers to a tower crane that relies on its own driving device to perform actions such as erecting (inverting) the tower and extending (retracting) the boom, so that it is in the state of lifting operation or transportation.

Self-erecting tower crane refers to its own drive

The jib can be divided into a pitch luffing jib (moving arm) and a trolley luffing jib (flat arm) tower crane.

The pitch luffing jib tower tower crane does not achieve luffing by lifting the jib. Its advantages are: it can give full play to the effective height of the jib, the mechanism is simple, and the disadvantage is that the minimum range is limited to the maximum range of 30. %, Cannot be completely close to the tower body, the load will rise and fall with the boom when changing amplitude, and can not change amplitude with load.

The trolley luffing jib tower tower crane achieves the luffing by the trolley mounted on the horizontal jib track. Its advantages are: the luffing range is large, the load trolley can approach the tower body, and it can carry the luffing with the load. Disadvantages Yes: The load condition of the boom is complicated and the structure is required. The boom and the trolley must be on the upper part of the building. The installation height of the spire is 15-20 meters higher than the roof of the building. ^[2]

It consists of three parts: metal structure, working mechanism and electrical system. Metal structures include towers, booms, and bases. The working mechanism has four parts: lifting, luffing, turning and walking. The electrical system includes motors, controllers, power distribution cabinets, connection lines, signals and lighting devices.

The self-erecting tower crane reduces the use cost and shortens the preparation time for putting into use, and is especially suitable for urban and rural housing construction projects ^[1] .