TECHNOLOGY REPORT | CHAIN HOISTS
will play a significant factor in project planning, and from a manual hoisting point of view, that will always provide a cost efficient means to do the job and when you compare that to pneumatic and electric systems that’s a significant increase in costs, whether that’s generators, or power backed up or the actual units themselves or fully automated systems, none of these will come in at the same cost as manual hoisting so for us it’s difficult to see a time when manual hoisting will become obsolete. At the end of the day everything has to get lifted into place by something,” he says.
“The difficulty is, everyone is used to the types of clamps they use but we are trying to break that mould and get away from tradition by offering something that’s different, that is more versatile. That’s the challenge we have, trying to break that norm to try something new instead of using a clamp or piece of equipment they have always used.” One of its clients is an oil and gas company in Denmark, which orders the clamps in their hundreds for their offshore projects, supplied through its supply chain distributor, which is a key contract for Tiger Lifting and a major driver delivering that clamp to the marketplace. The company was open to using the clamp because it was similar to ones they had used before, sold in Scandinavia. Sutherland says aside from offshore applications, the CSS could be used in the rail network sector and Tiger Lifting recently had a meeting with the stakeholders on the HS2 High Speed Rail Network project in Ryslip, UK, to discuss the versatility of its clamps. It also launched some new product lines and upgrades last year including its TAH21 Air Hoists and ULT series hoists, designed for mining, industrial and general engineering applications where headroom is limited such as locomotive battery bays, pump chambers and underground workshops.
The industrial air hoists are also used in
shipyards, offshore construction, power stations, automotive plants, foundries, and heat treatment plants. The hoists operate at air pressures of between 4 and 6 bar and comply with the requirements of ASME B30.16 and EN14492-2.
OFFSHORE PROJECTS EMM, one of the largest manufacturers of bespoke rigging in Europe, recently supplied Allseas with some new Tiger 5t
R Irizar Forge provides smart offshore lifting solutions
single fall air hoists accompanied with beam clamps and chain hoists for the major decommissioning preparations for the removal of two gas production platforms in Morecambe Bay, UK. The South Morecambe field was
discovered in 1974 and commenced production in 1985; it extends over license blocks 110/2a and 110/3a on the UK Continental Shelf. DP3 and DP4 each comprise six wells and a single installation connected via two pipelines (24” and 2” nominal bore) to the Central Processing Platform CPP1. The DP3 and DP4 installations and pipelines are operated by Spirit Energy Production UK Limited. They were installed in 1985 and are normally unattended installations (NUIs) supported by four leg steel jackets in 22m - 25m water depth. As production is in decline and design capacity is significantly above current production rates there is a focus on ensuring that the South Morecambe field continues to maximise economic recovery of the remaining reserves. As a result, a series of simplification projects are taking place to reduce operational expenditure, reduce maintenance and integrity burden and to optimise facilities. As part of this strategy, the decision has been made to decommission the DP3 and DP4 installations and infrastructure. The scope of work with Tiger Lifting includes; engineering, preparation, single- lift removal and disposal of DP3 and DP4 platforms (6760-t topsides and 2700-t jackets); design, fabrication and installation of lifting aids (horseshoes), reinforcements, lift points, grillage and sea-fastening; platform preparations (including cutting
and removal of risers, caissons and conductors, cutting of platform legs and strengthening of topsides) and removal and disposal of subsea infrastructure (mattresses, spools, cables, umbilicals and anti-scour frames). Despite the pandemic, Irizar Forge faced
one of its biggest challenges last year, delivering a SWL 1000t hook block to be installed in the DLV-2000 pipe layer vessel, a pipe layer built in 2016 currently sailing under the flag of Panama and a major offshore project. The DLV-2000 vessel is used for installing large subsea spools, laying infield umbilical and lifting subsea distribution units. Maria Lasa Irizar, sales and managing
director, Irizar Forge, says 2020 was ‘a strange year in all respects’. The global pandemic disrupted normal activity at the company and it was forced to explore new communication channels. “To be open minded and think out of
the box is essential. The company I lead is 100-years-old and we always need to look forward even if there are difficulties. We have a great team behind the scenes which is necessary to produce excellent products, maintain operations and quality management. The players we contact are willing to see safety-related cost-efficient products. Safety is not about pricing, it is about getting to market optimal solutions with safety as a first priority,” she says. “We try to be as efficient as possible, using less raw materials with smart processing to be sustainable as a company, having as a result eco-friendly products. Also, product lifecycle is increasing thanks to new forging technologies; additionally, product surface quality has improved
www.hoistmagazine.com | May 2021 | 39
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