en.Wedoany.com Reported - Bruce Power's nuclear power plant in Tivoli, Ontario, Canada, has mobilized Mammoet's 1,600-ton PTC-35 ring crane to perform a major component replacement (MCR) on Unit 4, including relocating two steam drums and removing and replacing a total of eight steam generators.

Each steam generator weighs approximately 145 tons and will be lifted out and in through the reactor building roof opening. The entire replacement operation is expected to take about six months.

The Bruce nuclear power plant, comprising eight CANDU units across its A and B stations, has a total installed capacity of over 6,550 megawatts, supplying more than 30% of Ontario's electricity demand while also producing medical isotope cobalt-60 for cancer treatment. This MCR project, initiated in 2020, will sequentially replace key components such as steam generators, pressure tubes, calandria tubes, and feeder pipes for six units (Units 3 to 8). Upon completion, each unit will be granted a 30- to 35-year life extension, ensuring the plant's continued operation into the 2060s.

The Steam Generator Replacement Team (SGRT)—a joint venture between Aecon and Framatome Canada—is responsible for the specific construction work, and decommissioned components will be transported to a long-term storage area using self-propelled modular transporters (SPMTs). Compared to crawler cranes of the same capacity, the PTC ring crane offers superior wind stability and advantages in confined spaces, having played a key role in similar replacements for Unit 6 in 2021 and Unit 3 in 2024.

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