A 50-storey residential development on the riverfront in Chicago is being built using a Potain MD 485 B M20 tower crane.
Sim Lian Group is using two Liebherr 280 EC-B 12 Litronic flat top cranes for heavy lifting jobs at a public housing development in Singapore.
ALE has installed a 1,650t ton, 140m-long bridge in Sweden, using a combination of SPMTs, barges and jacking equipment.
A crane accident has been blamed for a 23USt AC unit falling almost 30 stories into a busy New York street. However, with no official report, it remains possible that other causes may have been to blame. Cranes Today understands that the load may in fact have been removed from the crane before the unit fell.
A man was seriously injured yesterday after a lift cylinder on a truck mounted lift failed, dropping the bucket to the ground.
The man, Joe Henry, 41, was working from a 2006 Altec lift in the Springdale area of Pittsburgh when the rod on the main lift cylinder sheared, allowing the pole type top boom to drop while he was using a chainsaw. He suffered four broken ribs, a collapsed lung, a broken wrist and a head injury above the right eye.
Henry was working for Mike’s Tree Service, trimming some large conifers around an industrial premises and was around 12 meters up when the incident occurred. He was harnessed into the platform at the time. An OSHA inspector has visited the scene and made plans to have the lift cylinder inspected and tested.
This photo clearly shows the damaged lift cylinder
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A boom truck lifting a tree in East Falls, Philadelphia, Pennsylvania, overturned yesterday injuring a man in a bucket truck.
The boom truck, owned by Arader Tree Service, was apparently supporting a large tree limb while the man in the bucket truck was cutting it free, the crane overturned and either it or the tree smashed the bucket from the end of the boom. We understand that the man’s injuries are not life threatening.
An All Terrain crane was called in to recover the stricken boom truck, which was able to retract its boom and appeared to have suffered surprisingly little damage.
he overturned boom truck
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Japanese crane manufacturer Tadano has marked the shipment of its 1,000th 80-tonne rough-terrain crane, the GR-800EX, a model launched in “chaotic circumstances” due to the 2011 Great East Japan Earthquake.
The ensuing tsunami caused damage among Tadano’s supply chain and its suppliers, resulting in a temporary shut-down of the rough-terrain crane assembly line, said Koichi Tadano, President and CEO of Tadano. Many customers were not able to receive machines they had ordered, said Tadano.
“The GR-800EX was introduced to the market under chaotic circumstances. However, it has come to have a reputation for its reliability, high quality, and environmentally friendly performance, especially in energy development jobsites – mainly in North America, the Middle East and Russia – and mining jobsites.”
Tadano noted that the huge fluctuations in the exchange rate of the Japanese yen, which often has a negative impact on exports from Japan, had not blunted customer demand. “After the exchange rate stabilised and became more favourable due to the weaker yen, GR-800EX production accelerated, and we achieved the milestone of 1000 units produced and shipped within the outstandingly fast period of four years.”
The crane is popular on job-sites where harsh environmental conditions affect performance, while the importance of the job makes make it difficult to replace cranes experiencing downtime, explained Tadano.
Technical features include one of the highest boom capacities in class, with a rounded boom made of lightweight high-strength, high-tensile steel.
Higher fuel efficiency is achieved via a fuel monitoring system, an eco-mode system which reduces fuel consumption by adjusting the engine speed during crane operation, and a positive control system, reducing fuel consumption by hydraulic pump displacement restrictions during engine idling.
The crane also features Tadano’s AML L safety monitoring system with asymmetric outrigger extension control, to make maximum lifting capacity available for each configuration, and ensure that the safety controls cannot be turned off.
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Liebherr recently introduced two operator assistance systems for its crawler cranes: the Horizontal Load Path control assistance system and the Vertical Line Finder.
The Horizontal Load Path increases comfort during crane operation, allowing the load to be moved to the projected position more efficiently. The control assistance system also facilitates the coordination of loads during lifting operations with more than one crane.
Activated from a button on the joystick, the Horizontal Load Path function allows the load to move horizontally at a constant height. The boom and hoist winches are coordinated with the push of a single button to improve user friendliness with the crane.
This feature allows for precise load transportation for assembly work or work with concrete buckets. It also provides easier positioning of the load in blind spots and short suspension lengths to save time when positioning the load.
Liebherr’s Vertical Line Finder ensures that the load on the rope is hoisted with perfect verticality to prevent load sway and possible collisions with obstacles or people.
Through exact vertical hoisting of the load, the crane operation becomes smoother and there is less stress on the boom and steel. To employ the Vertical Lind Finder, the operator presses a button on the joystick, and the crane’s boom and hoist winches as well as swing are brought into the correct position. Crosshairs on the monitor show whether the rope is in vertical position. The function of this assistance system is interrupted as soon as the crane operator releases the button and/or the maximum lifting capacity of the crane is reached.
Key features of the Vertical Line Finder include no sway of the load caused by diagonal pull when starting the lift, increased safety on the jobsite, less wear of the boom, easier lifting of the load even with obstructed view, and well-balanced load distribution during lifting operations with more than one crane.
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The “Seegold” is a new motor ship for shuttle services on Lake Constance. In May two Liebherr mobile cranes have launched the 100-tonne ship’s hull into the water.
Tight spaces and the low capacity of the quay in Friedrichshafen made the lift a challenge. In use were an LTM 1350-6.1 from the Wiesbauer company, and an LTM 1400-7.1 from Paule.
The Seegold was built in the Lux-Werft in Bonn. The first stage of the journey to Lake Constance for the 32 metre long and 7.8 metre wide ship progressed along the river Neckar.
In Heilbronn Wiesbauer lifted the ship out of the Neckar and loaded it on to a Spedition Kübler low loader. Finally, the heavy transport made his way to Friedrichshafen, where the final lift took place.
“Due to the space required and the supporting pressures, we worked on the planning for around three months,” says Jochen Wiesbauer, managing director of Wiesbauer GmbH & Co. KG. Finally, the experts decided to use an LTM 1350-6.1 from their own fleet, and an LTM 1400-7.1 from Hermann Paule GmbH & Co.KG. The lift itself ran smoothly: the two Liebherr mobile cranes launched the ship’s hull into the water with a tandem hoist. Thereafter, the separately transported wheelhouse was placed on the hull.
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Liebherr unveiled the new 300-tonne LTM 1300-6.2 at the Bauma 2013, featuring a brand new power concept to operate the superstructure. Instead of the twin-engine concept normally used on cranes in this class this crane is powered by a single engine with a mechanical shaft. Gear shafts are routed from the distributor gear in the substructure via two mitre gears through the centre of the slewing ring to the pump distributor gear in the superstructure. Several dozen models of this new crane have since proven their worth on sites around the world.
The LTM 1300-6.2 with the Liebherr single-engine concept won the ESTA Award of Excellence in the Innovation Category in April 2015 in Paris. The innovative concept was assessed on the basis of multiple factors – the mechanical shaft achieves high efficiency, the weight reduction enables the load capacity of the crane to be increased, the maintenance requirement is reduced and ECOmode minimises fuel consumption. The jury described Liebherr’s single-engine solution as a simple, coherent concept which will establish itself as a new standard on mobile cranes.
Operators of the LTM 1300-6.2 have delivered a very positive assessment of the new crane. Uwe Langer from RIGA MAINZ GmbH & Co. KG is full of praise. “We are very satisfied with the LTM 1300-6.2. In technical terms the crane delivers very good handling, high flexibility, outstanding load capacities and short set-up times due to very simple ballasting among other things.”
Jörg Holtappels, Managing Director of Baumann Schwertransporte und Autokrane, says, “We are delighted with the new LTM 1300-6.2. The machine is very easy to handle and simple to set up. We noticed the low fuel consumption as soon as we picked up the crane to drive it here. We haven’t missed a separate engine for the superstructure because even when the crane is operating, the fuel consumption is comparatively low.” Uwe Langer confirms the efficiency of the crane superstructure. “The fuel consumption is identical to a twin-engine crane. Recently we have a site where normally a twin-engine crane would be a benefit. But once again the fuel consumption was no higher. The ECOmode works perfectly. The crane driver does not even notice the coupling and decoupling processes.”
Amados Salces, owner of French crane contractor Locagrues and his dispatcher Alexis Sacquet are also delighted with the new crane. “The fuel consumption is surprisingly low. It uses even less than our 220-tonne machine with twin engines. The crane superstructure on the new LTM 1300-6.2 operates very sensitively and precisely. The engine is well damped, very pleasant.”
Crane contractor Gräser-Eschbach has used the LTM 1300-6.2 frequently to erect tower cranes. Frank Eschbach says “We keep the crane very busy. We erect lots of construction cranes, primarily using just the 78 m telescopic boom. No other crane comes close to matching its performance.” Crane driver Peter Schneider praises ECOmode. “Handling with ECOmode works perfectly. It’s a brilliant feature. The crane is fantastic to drive. It’s a really top machine.”
The positive feedback from the customers confirms Liebherr’s decision not to fit a separate superstructure engine was the right one. The second crane to feature the Liebherr single-engine concept is the 5-axle LTM 1160-5.2 which was unveiled at the Conexpo in Las Vegas in 2014. This year Liebherr has presented this new crane to the European public at the Intermat in Paris.
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