< PreviousL iebherr has achieved a new milestone in the construction of the new Heavy Lift Crane (HLC) 150000-3000: the mechanical connection between the lower slewing column and the machinery frame has been made to create the lower slewing unit of the HLC. The Heavy Lift Crane series (HLC) by Liebherr is specially designed for the installation of offshore wind foundations and substations as well as the installation and decommissioning of offshore platforms. In June 2018, Liebherr-MCCtec Rostock GmbH and the Oslo-based company OHT agreed the contract for the Heavy Lift Crane 150000-3000 for Alfa Lift, the worlds’ largest custom-built offshore wind foundation installation vessel. With a maximum lifting capacity of 3,000 tonnes at 30 metres and 1,000 tonnes at 76 metres outreach, the HLC 150000-3000 is ready for a wide range of applications and a key feature of OHT’s Alfa Lift. The Norwegian contractor’s new build vessel, of Ulstein Design, is currently under construction in China, due for delivery next year. During the manufacturing of the HLC 150000-3000, lowering the 180-tonne machinery frame into the 500-tonne, lower slewing column is an important milestone for a crane of this size, establishing the foundation for further processes. The machinery frame is the heart of the Liebherr heavy lift cranes, containing electric motors, the hydraulic pumps and the main switchboards. The HLC 150000-3000 was realized in close collaboration between OHT and Liebherr. The manufacturing processes are now in the final phase at the Liebherr site in Rostock. Following the electrical and hydraulic connection of the machinery frame and the lower slewing column, the next milestone to reach will be the connection between the upper and the lower slewing unit. The Liebherr HLC 150000-3000. The 180-tonne machinery frame was lowered into the 500-tonne slewing column. Artist’s rendition of Alfa Lift carrying 10 XXL monopiles and transition pieces. The radius of the slewing unit is 14m. 40 PLANT / MACHINERY / VEHICLESwww.pmvmiddleeast.comDECEMBER 2020 CRANES MANUFACTURING OF THE LIEBHERR HEAVY LIFT CRANE 150000-3000 FOR ALFA LIFT REACHES KEY MILESTONET he SGC-90 is an electric ring crane suited to projects in the nuclear, logistics, construction, and off shore wind sectors. Nicknamed ‘The Little Celeste’, the SGC- 90 was developed in response to market demand for heavy lift cranes with capacities greater than 80.000 TM. Its ring diameter is 35 metres, maximum counterweight is 2.700 tonnes, and maximum load moment is 99.000 tonnes. It can be confi gured in a variety of ways, with main boom lengths of 100, 120, and 130 metres and a small jib of 200 tonnes. The Sarens heavy duty and light jib can also be used to reach further or attain a higher hook height. The mobilisation and demobilization of the SGC-90 match that of the SGC-120, approximately four to fi ve weeks. While all Sarens’ other SGCs are hydraulic cranes, the SGC-90 can be connected to the electric grid and be fully powered without a traditional fuel source. Uniquely, the Little Celeste can even produce its own energy, recovering and reusing the electricity it generates each time it lowers a load. When connected to the national grid, it recovers all produced energy and feeds it back, reducing energy consumption by up to 40%. Because it runs on electricity, the SGC- 90’s operation is very silent. It is energy- effi cient and environmentally friendly, emitting no exhaust and posing no oil contamination hazards. Finally, the crane is maintenance-friendly and reliable, with no hydraulic pumps, fi lters, or engines. The Sarens RDTS team developed the concept of the crane in-house, performing all calculations and coordinating with diff erent contractors to construct the crane on a tight timeline. Although the crane was developed during the Covid-19 pandemic, this did not impact progress because Sarens had already implemented rules and procedures to minimise possible health impacts and promote employee safety. The Little Celeste conforms to the latest crane standards for safety and security. Directive, static, and dynamic overload tests as well as function and safety tests have all been successfully performed according to the Machinery Directive. 41 PLANT / MACHINERY / VEHICLESwww.pmvmiddleeast.comDECEMBER 2020 CRANES SARENS LAUNCHES SGC-90 ELECTRIC RING CRANET he Men From Marr’s (Marr Contracting) and tech start- up BuildAI are collaborating to fast-track artifi cial intelligence (AI) on work sites. In what is the fi rst strategic partnership and signifi cant investment since BuildAI launched in 2019, The Men From Marr’s have taken a minority stake in the start- up and their cranes will be the fi rst in the world to adopt BuildAI technology, a cloud based AI software system that automatically reports construction progress. BuildAI uses advanced AI technology to improve construction effi ciency by combining years of AI computer vision research and development with decades of experience in construction and commercial environments. Adding BuildAI's artifi cial intelligence to Marr's cranes would allow Marr’s and its clients to use real-time data to dramatically improve overall project outcomes. Simon Marr, managing director, Marr Contracting, said: “Despite the massive technological advancements that we’ve seen in other sectors, our industry hasn’t changed much in terms of technology over the last 20 years. Where manufacturing productivity has grown by 3.6 per cent, construction productivity growth is sitting below 1 per cent. This is why we’re joining forces with BuildAI to bring developments in technology on-site to allow us to automatically gather and analyse real-time lifting data. It’s the missing link for us in delivering even safer, faster and more cost-eff ective solutions for our clients.” Kristian Butcher, CEO and co-founder, BuildAI, said: “BuildAI will do for the construction industry what Apple has done for phones – our AI technology is a quantum leap forward from current manual methods akin to upgrading from a Nokia to a smartphone. While manufacturing has long been enjoying the benefi ts of automation, it has taken more time for hardware and AI to become sophisticated enough to respond to the dynamic environment of a construction site. Similar to self-driving cars, BuildAI uses cameras to monitor cranes and the movement of materials and workers, and then relays that data to an AI system which crunches the numbers in real-time onto a cloud-based dashboard.” “The possibilities for improved effi ciency, profi tability, productivity and safety are endless, with AI set to boost productivity of the biggest and most expensive equipment on site – cranes – by 25 per cent. It will also support safety controls, such as perimeter edge protection, which are in place to reduce the risk of falls from height," added Butcher. All of Marr’s cranes – including the M2480D which is the world’s largest capacity tower crane – are currently fi tted with remote data logging and monitoring systems, and with the world-fi rst addition of BuildAI's technology, Marr’s will be able to access this data from anywhere in the world to see how effi ciently their cranes are being used and how they are interacting with the overall project schedule. “BuildAI won’t just allow project teams to unlock the full potential of their resources and realise some long overdue productivity gains but it will entirely reshape the way work sites are run, allowing for more fl exibility and diversity. This technology will allow boots-on-the-ground staff to make it home for dinner, enable an aging workforce to upskill, inspire the next generation (digital natives) to forge a career in construction and facilitate the work-life balance needed to improve diversity and inclusion, bringing more women and primary carers into the industry,” said Butcher. MARR CONTRACTING USES ARTIFICIAL INTELLIGENCE TO ANALYSE REAL-TIME LIFTING DATA Simon Marr, managing director, Marr Contracting, and Kristian Butcher, CEO and co-founder, BuildAI. 42 PLANT / MACHINERY / VEHICLESwww.pmvmiddleeast.comDECEMBER 2020 CRANESRELIABLE, DURABLE & COMFORTABLE TYRES Trax MATuff SOD 325/95 R24 Mixed/All Position Special Utility/ Drive Position Please consult your nearest Apollo Tyres distributor for inquiry : UAE : Middle East Tyres, Dubai, Phone: +971 (4) 2557172 Oman : Rimal Sarooj, Muscat, Phone: +968 24699396 Kuwait : Federal General Trading & Contracting Co WLL, Phone: +965 22262449 Qatar : Al Hitmi Tyre Trading Co Q.S.C, Phone: +974 440167032/40 Bahrain : Abdulla Yousif Fakhro & Sons BSC (c), Phone: +973 17275000 KSA : Al Jomaih Tyres Company: Al Riyadh Phone No. 011 239 9902 / Jeddah Phone No. 012 697 5000/ Dammam Phone No. 013 833 7777• Choice of Euro IV-compliant petrol or diesel engines • Manual or automatic transmission • 4x2 and 4x4 options available STARTING FROM AED48,500 PLUS VATNext >