CRC in underwater crane rescue

A Manitowoc crane that slipped off a bank into 70ft of water has been successfully rescued by Florida-based Crane Rental Corporation (CRC) in a tandem lift.

CRC used a Manitowoc 2250 crawler crane with MAX-ER attachment (500t capacity) and a 600t Terex AC 500-2 hydraulic truck crane to lift the submerged Manitowoc 4600 dragline. The total weight lifted was 484,000 pounds.

CRC had to supply pre-lift plans and submit them to the Mining Safety and Health Administration for approval. It also supplied a lift director, skilled riggers and certified crane operators for the job.

The company has performed nearly a dozen recoveries after similar accidents and has engineered specialised rigging for such projects.

Engineers assessed the machine and had to predict the components’ stored energy before divers cut the boom, mast and heavy-duty wire rope. Underwater cameras and communications were essential as the divers’ exposure had to be limited at the depth.

DEMAG AC-700 joins Wagenborg fleet

Dutch lifting services and heavy transport company Wagenborg Nedlift has strengthened its crane fleet with a nine-axle Demag AC-700 mobile crane featuring a 60m main boom.

The 700t crane has already completed its first project – a tandem lift of an 185t hydraulic piling hammer with one of Nedlift’s 500t cranes. The hammer was lifted from a quay into an inland ship at the port of Eemshaven.

Nedlift’s AC-700 specification includes 160t counterweight capacity, Sideways Super Lift and the possibility to add a 36m main boom extension and 50m fixed fly jib, as well as 96m luffing fly jib.

The crane, to be used in the petrochemical, oil and gas industries, was supplied with an extensive safety package, including features like platforms and railings to work fully secured on top of the main boom and jib.

Malina Crane’s sporting challenge

Malina Crane of the Czech Republic has performed a tandem lift using a Terex Explorer 5800 and an AC 250-1 all-terrain crane at a new sports arena in in Frydek-Místek, Czech Republic.

Malina Crane said limited space and an oversized 28t load measuring 30m wide had to be overcome when lifting the prefabricated steel roof structure into place at the arena in Frydek-Místek.

The AC 250-1 operated with a main boom length of 41m and 21m working radius, while the Explorer’s main boom was telescoped to 42m at a working radius of 24m. These settings allowed the cranes to lift the load precisely to the required 18m height.

Malina Crane president Radek Malina said the project had also been useful to assess the fuel consumption of Terex’s single-engine concept compared to a two-engine design.

Mr Malina said: “Now we have seen it clearly: the single-engine concept is in fact significantly more fuel efficient.”

He said another benefit of the single-engine design was the ability to switch off the engine at any time during a job, without turning off the IC-1 crane control system.

The multi-use sports arena features an ice rink.

Davis Crane in big Terex truck crane order

North Texas based lifting company Davis Motor Crane Service has signed its largest-ever Terex order for a single crane model.

The company has ordered five 40t Terex T 340-1 cranes from Terex distributor Scott-Macon Equipment to help it access confined job sites in northern Texas while achieving high lift capacities. The order represents an upgrade of Davis Crane’s fleet of 35t truck cranes.

The short 10.8m unit’s length and narrow 2.4m driving width allows navigation of the congested Dallas-Forth Worth market streets and northern Texas region, while the 28.7m telescopic boom length and maximum tip height of 44.8m gives capabilities for use on multi-storey building projects in downtown markets.

Keith McKee, general manger of Davis Crane, said the T 340-1 gave the company the ability to provide a 40t class truck crane without going to a boom truck. He said the construction industry still preferred a truck crane over boom trucks.

Boom Booster increases Terex CC 8800-1 lift capacity

Terex has launched the Boom Booster kit for its CC 8800-1 crawler crane designed to significantly increase lifting capacities and reduce transport costs.

The company said the booster kit was ideal for heavy lifting applications with long-boom configurations, such as wind turbine erection and power plant installation, as well as on petrochemical projects.

Terex said the Boom Booster, available with new crane purchases or retrofits, increases the CC 8800-1 crane’s lift capacity by 90% thanks to up to 72m of lift-enhancing boom structure.

The wedge-shaped lower and upper adapters flare out to a 10m width, nearly three times the standard boom width, for structural integrity. Five 10m long intermediate segments offer the ability to meet up to 50m length needs.

Terex said the kit could be shipped in standard 12.2m open-top containers for transportation cost-efficiency. In markets with container weight limits of 28t, Terex said nine truckloads are required for transportation to site, while 40t container limits means seven truckloads are possible.

Poland’s EWPA become Terex distributor

Terex Cranes has announced EWPA Maszyny Budowlane as an authorised crane distributor for Poland. EWPA will provide local equipment sales, and service and parts support for Terex all terrain, rough terrain and crawler cranes, delivering lift capabilities from 32t to 3,520t.

EWPA was founded in 1989 and is headquartered in Komorniki, near Poznan. With workshops in Wroclaw and Lodz, EWPA has been an authorized distributor for Terex Construction since 1999. The firm has 20 branches in Poland and over 30 team members in its service and support department.