Location: Indonesia
Using the LR rigging system and tail frame, the reactor was turned into horizontal before being transported.
Scope of Work description:
Pertamina and their Project partners faced a challenge – how to replace a 30 years old 700-ton RCC Reactor fabricated from Chromoly material. The existing lifting trunnions were inadequate to lift the Reactor in current condition, and the shell material was not suitable for welding of new attachments.
The new Reactor was delivered from the fabricator by ocean vessel and barged to the site for onward transport and installation. An initial proposal to use a central attachment device at the top of the existing Reactor head was rejected on stability concerns, and the partners reached out to Lowther-Rolton for further assistance.
We developed a successful rigging system using “pins” top and bottom, which led through cut holes in the Reactor/Plenum and Stripper shell, respectively. The system was load tested prior to use. The top pin was rigged to the hook of Mammoet’s PTC50 ring crane, while the lower pin was landed to a Lowther-Rolton designed/SPMT mounted tailing frame.
The Reactor was successfully removed and laid down to horizontal during the turnaround in March 2022.
Key Achievements:
- Joined to Project at a late stage to
manage and engineer a major
rigging system due to emergent
scope change. - Managed a complex contracting
environment with many
stakeholders including JV Client. - Operated under lockdown
conditions throughout (Covid-19). - Designed adjustable cantilever
system for use while inserting the
pins into the Reactor.
