What is hammerhead tower crane?

Hammer Head Tower Crane also called Topkit Tower Cranes is the Tower Crane with tower head. The tower head is the fulcrum of tie-bars chains connected to jib and counter jib. This tower crane design makes good advantage of the prosperity of bending vulnerability and pressing invulnerability and lowers the weight of jib & counter jib (simple transforming beam in mechanical model). This type of tower crane is lower in production cost, but is more demanding on the erecting and dismantling circumstances. Furthermore, the tower crane occupies some vertical space, it turns out bad in anti-interference especially at tower crane concentrated working site.  

BQ Hammerhead Tower Crane Model: GHT5013-5(MC80), GHT5516-6(MC110), GHT6011-6, GHT6014-8, GHT5023-10(FO23B), GHT6015-10(H2515-10), GHT6024-10(MC205), GHT6520-10(MC235), GHT7032-12(MC310K12), GHT7027-16(MC320K16), etc.