As a topless tower crane with no cathead, the Potain MDT 268 from Manitowoc offers contractors greater space utilization on sites where multiple cranes are working or where height restrictions are an issue. The jib can also be erected section by section on tight jobsites where space is limited. The largest model in the redesigned MDT range, the 268 is available in a J10 version with an 11-ton maximum capacity and a J12 version with a 13.2-ton maximum capacity. Both versions have a 213-foot jib, with several additional shorter jib options available for greater lifting capacities. Also on display, the second model in Potain’s Igo T range of self-erecting cranes, the T 85 offers working heights between 66 and 115 feet with variations achieved via either telescoping or adding auxiliary sections. Maximum tip height is 157 feet.
The CTL 1600 luffing jib tower crane is the largest in the line, with 2.5 times the load moment and a 10-meter longer jib than the next model down.
Largest in the tower crane line, Potain MD 560 B has a 550 tonne-meter rating and is available in 25- or 40-ton versions.
Potain's Igo range of self-erecting tower cranes are electrically powered, bottom-slewing models that can use either jobsite power or power from a portable generator. The cranes are designed to self-erect by employing a system that includes a mast-mounted hydraulic cylinder (activated via an electrically powered hydraulic pump), jib cylinders and a mast and jib pendants.