Potain has launched two new luffing jib tower cranes the MR 309 and MR 329 with a choice of 16 or 25 tonne maximum capacities. The regular jib length is 60 metres with jib tip capacity of 3.4 tonnes.
The new cranes follow on from the launch of the MR 229 at Bauma in 2022, the first Potain luffer equipped with the Manitowoc Crane Control System (CCS) and Potain Connect telematics.
The jib on the MR 229, MR 309, and MR 329 can be mounted horizontally, section by section, which along with shorter windvane spans, makes installation on tight jobsites easier. The walkways, platforms and steps, along with counter jib and ballast, can also be installed at normal working heights and no component or normal assembly weighs more than 10 tonnes. The positioning of the ballast is made easier thanks to slinging rings and a self-centring system. A redesigned luffing mechanism also makes assembly easier, while an integrated jib end basket aids installation, inspection, and maintenance.
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The new cranes also feature a jib pivot height of 2.0 or 2.4 metres above the slew ring connection to the tower, as well as improved load charts. The out of service radius is 9.5 to 12 metres without the need for anchoring. The very first unit to be installed on a job, a 309, will erected in the UK on the site of a famous London hotel by Bennetts Cranes, in the next week or so.
Potain’s Thibaut Le Besnerais said: “We've received excellent feedback since the debut of the MR 229, particularly for its ease of erection, minimised out-of-service radius, and the integration of CCS. Furthermore, customers have praised the seamless operation of the crane from the Ultraview CCS cab. With these achievements in mind, we have high expectations for the MR 309 and MR 329 as they round out this innovative new generation of Potain luffing jib cranes.”
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