Slewing jib cranes are extremely versatile units which can be easily be adapted to the customer's specific requirements. For example, jib cranes are available with jib arm slewing about an integral floor mounted post or wall mounted directly from a building column. Standard post jib cranes are available to slew through 90˚ to 360˚ but limited to site requirements. Electric wire rope or chain hoists are available as options, as are electric or manual trolley and electric or manual slewing method.