Manitowoc Potain Lift Solutions delivers a tower crane built for the future

The custom-built Potain MD 689 M25 features a new type of gantry traveling unit, seaside corrosion proofing, and digital connectivity.  www.manitowoc.com France’s Port of Nantes (Nantes Saint-Nazaire Port) received a major upgrade with the addition of a new Potain MD 689 M25. The crane facilitates the loading of larger ships with greater air draughts and increased capacities. It has been operating since March at the port’s naval maintenance and repair quay, replacing a crane that had been in operation since 1960. Potain Lift Solutions provides analysis, product design, and consultation to customers seeking to optimize crane performance in specific applications or for those undertaking particularly demanding or challenging projects. The division collaborated with the port to tailor the crane to its particular needs and the local working environment. It was erected on a gantry that interfaces directly with the Potain Crane Control System (CCS) to travel across 170 m of rails, covering all three of the port’s dry docks. The traveling gantry is the first on a Potain crane equipped with frequency inverter drives (and the drives are also integrated into the CCS). This delivers smooth, stepless motion along the tracks and excellent lifting performance. It also offers onboard assistance, particularly when paired with the Potain CONNECT™ digital platform, for real-time remote diagnostics, machine operation alerts, and remote actions. “Lifting operations in ports have always been dynamic and demanding, with very high economic stakes,” said Sylvain Brunet, Lift Solutions business project manager. “For Nantes Saint-Nazaire Port, the requirements of the industry and the needs of our customers led us to develop an even more robust and innovative solution.” The MD 689 25 was set up with permanent double reeving, providing a maximum lift capacity of 25 t when the jib is at 26 m, and 7.6 t when the jib is extended to its maximum of 75 m. For its working location, the crane was treated with paint to withstand the highly corrosive portside environment, meeting the C5-H standard under ISO 12944. Other customizations included specially designed access and dedicated lighting. This features a lighting system operated from the control station that can be dimmed to avoid interfering with ground operations. There are also work cameras on the trolley and portal, as well as a communications system featuring in-cab microphones and speakers, an external loudspeaker, and channel encryption. www.manitowoc.com Powered by Induportals Media Publishing