Manitowoc completes its latest generation of Potain luffing jib cranes with the launch of the MR 309 and MR 329. These new models follow the successful introduction of the MR 229 at bauma 2022, which was the first Potain luffing jib crane to come equipped with the cutting-edge Potain Crane Control System (CCS) and Potain CONNECT telematics.
Customers demanded quicker and simpler crane assembly and Manitowoc listened. The jib on the MR 229, MR 309, and MR 329 can be mounted horizontally, section by section, while the reduced windvane spans make installation on tight jobsites easier. Accessible platforms and steps promote secure and efficient worker movement, and the counterjib ballast is installed at working height.
The positioning of the ballast is made easier thanks to slinging rings and a self-centering system. A redesigned luffing mechanism further streamlines assembly, while an integrated jib-end basket further promotes more secure installation, inspection, and maintenance.
The MR 309 and MR 329 have been introduced with maximum capacity variants of 16t or 25t. Despite sharing a common 60m jib and a 3.4t capacity at the tip, their distinct pivot and mast configurations result in differing heights under pivot and load curves.
The MR 309, with its 2m pivot and mast configuration, achieves a height under pivot of 49.2m, reaching a maximum capacity of 4.3t at 55m. In contrast, the MR 329, featuring a 2.45m pivot and mast configuration, attains a height under pivot of 55.2m, with a maximum capacity of 4.7t at 55m.
