New jacking system for nuclear decommissioning project

13 June 2019

ALE has delivered a unique jacking system for the removal of a reactor core on a nuclear decommissioning project in the UK. The company used its in-house steel fabrication capability to tailor-make the steel structure for the jacking system based on its Mega Jack 800 technology.

The project started in 2017 when ALE was tasked with designing, manufacturing, testing, installing and operating the core jacking system for the removal phase of an out-of-service nuclear reactor in the UK.

ALE took its Mega Jack 800 jacking system and tailored it to meet the needs of the project. The team created an extended feed-in system for the lifting cassettes, a unique turntable to sit underneath the reactor, an interface system, a recovery frame, a containment tray, gutter tray, and effluent management system.

ALE’s fabrication capability is accredited to CE standards, including the higher Execution Class 3 level under BS EN1090, a European standard that regulates the fabrication and assembly of steel and aluminum structures. The project is expected to be completed in the H2 of 2019.

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