He recognizes the need for tools and machinery for the building industry and domestic construction. Together with design engineers and tradesmen, he develops the first mobile tower crane in The TK 10 can be transported easily and is simple to set-up at the construction site. It is also the first product of the Hans Liebherr Maschinenfabrik engineering works , founded in in Kirchdorf.

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Liebherr LR with PowerBoom for the first time in operation Liebherr May 21, 0 1, 3 minutes read The Lloyd shipyard in Bremerhaven was the arena for the largest conventional crawler crane in the world this April and May. Take the most powerful crawler crane in the world, an enormous floating crane and add one of the largest jack-up vessels which has to be equipped with enormous stilts, and you have the ingredients for a superlative construction site.

This is what was on offer to the numerous crane fans who visited the quayside opposite the shipyard during the past few weeks in order to observe the exciting events up close through binoculars, telephoto lenses and with photographic drones. The special ship for building offshore wind farms was awaiting completion at Lloyd.

Built in Hamburg, it had been towed to Bremerhaven in order for the four enormous jack-up legs to be installed. The challenging task of installing these enormous stilts was entrusted by the shipyard owners to the Dutch heavy load and crane specialists, Mammoet, with its Liebherr LR crawler crane.

This was the second time that the Dutch company had assembled its gigantic crane. This means the double lattice mast booms extend over a length of 48 meters, in parallel to one another. The ten-strong team from Mammoet had planned that it would take four weeks to set up the crane on the shipyard premises. The work proceeded smoothly with assistance by Liebherr service engineers from the crane factory in Ehingen.

The crawler crane was standing meters tall after only 12 days, however, ready for lifting. The actual craning work on the jack-up vessel started with the most technically challenging lift.

With its 65 ton hook block and fastening equipment, the crawler crane was lifting a gross load of more than tons here, with a reach of 23 meters.

First of all, the LR had to lift its load to the maximum hook height of meters in this setup configuration. It was not possible to lift in with the high cables of the ship crane, as a result of which the steel cylinder was first suspended above the deck of the ship.

Installation into the complex and extremely large hydraulic system of the jack-up vessel took about four hours. Using large pulley blocks, the pipe was turned into the correct position whilst being lowered. The gigantic jack-up platform will thus be able to operate irrespective of the sea state. Mammoet had a hydraulic fastening system developed especially for this order.

By means of a hydraulic hand pump, the pins of the fastening equipment of enormous size were released within minutes under control from the operating after lifting in. There was no need for fastening devices on the load — four holes in the steel cylinder were sufficient. These elements weigh tons and were lowered onto the base of the dock basin before the ship was positioned over them.

Industrial divers then secured the feet to the bottom ends of the pipes using fastening equipment pulled upwards by the crawler crane through the jack-up legs. Work in the shipyard proceeded round-the-clock on this project. The lifts of the following day were prepared overnight, and if possible the load was attached already.

Then, the actual installation work took place in daylight. Following one week, all four jack-up legs of the special ship were already towering upwards.

A previous order of this kind involving installing somewhat smaller jack-up legs in a jack-up vessel was undertaken using two crawler cranes of a smaller lifting capacity working in tandem.

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DIN 15401 PDF

Liebherr LR13000

It was the first time that this crane is used with the P-boom double boom , on his first job the crane was used with main boom and luffing jib. Unfortunately is in many cases some material missing to show the huge dimensions of the crane. The slewing ring has a 4. Only the slewing ring with drives has a weight of 36 tonnes. The full counterweight weights tonnes with the two beams, each 25 tonnes, included. The tailswing is


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