US manufacturer Manitowoc has launch the largest topless tower crane in its Asia range: the 80-tonne capacity Potain MCT 2205.
The crane has an 80-metre-long jib which can carry a payload of 23.5 tonnes and is being built at Manitowoc’s Chinese facility in Zhangjiagang.
According to Manitowoc the new model offers similar performance levels to the largest Potain hammerhead cranes, whilst making features of flat-top designs available. These, it said, include simplified transport, ease of assembly, and a more compact profile.
Despite being Zhangjiagang’s largest crane, the top-slewing portion of the MCT 2205 M80, including all 11 sections of jib, can be transported in 16 trailers or containers. The crane’s well-proven mast telescoping system is constructed for Potain’s R99A or R910A mast sections.
The crane can achieve a 71 m height under hook with PA950 fixing angles, or 99.9 m with PA952 fixing angles. It can carry a 23.5 t payload at the end of its full jib configuration, with its maximum 80 t capacity available between 5 – 26.3 m. This extends to 30.5 m when the jib is built to 45 or 50 m, while 72.9 t can be handled towards the end of a four-section, 30 m jib assembly. These capabilities are designed to help it deliver heavier loads further across busy jobsites, whilst reducing its impact on the operation of nearby cranes, says Manitowoc.
With up to 124,000 kg of ballast available, the MCT 2205 comes with two counterjib options – the full 25.2 metre or a 20.2 metre design depending on jobsite requirements.
The crane’s hoisting winch is a 280 LVFC 200 Optima. Supplied with 1,007 m of rope, its 280 hp/212 kW motor enables an 80 t load to be raised at a speed of up to 12 m/min. This same payload can also be propelled horizontally at adjustable speeds up to 25 m/min, courtesy of the 25 DVFC 35 trolley’s 25 hp/18.5 kW motor. Four RVFC 194 Optima+ slewing motors govern the rotation of the upper structure. The crane uses Manitowoc’s V140S Vision Cab.
“Manitowoc has leveraged its decades of expertise in developing large-capacity tower cranes to design a topless crane that meets our customers’ lifting requirements in this new era of construction,” said Kwong Joon Leong, regional product manager at Manitowoc. “We are already seeing a great deal of interest from those working on large infrastructure projects, power plants, and other mega projects that require the lifting of very heavy loads.”
