DENZAI Introduces 2500-ton Crawler Crane by Liebherr – Heavy Lift News
17 Apr 2024

DENZAI Introduces 2500-ton Crawler Crane by Liebherr

DENZAI K.K., a Japanese a specialist in heavy lift and specialized transportation engineering, will introduce a 2500-ton state-of-the-art crawler crane, the LR12500-1.0 by Liebherr. With this introduction, DENZAI will be the first company that owns a LR12500 in Japan and APAC.

The decision for this type of crane was to meet the height and weight requirements for offshore wind power in Round 1 and Round 2 in Japan, and to assemble and construct offshore wind components with the crane for the floating offshore wind farm that is expected to follow.

As the amount of electricity generated by offshore wind increases, the height and weight of offshore wind turbines are becoming larger and larger. The construction of even larger offshore wind turbines is expected to become impossible with the 1350-ton crawler crane, which is the largest crane currently owned by DENZAI. In the Round 1 and Round 2 offshore wind farm projects currently underway in Japan, the weight of the towers will be different from the European specifications, and the Japanese specifications are expected to be even heavier.

In addition, the working radius of the cranes is expected to be larger than in Europe, because some Japanese ports have less strong wharves than those in Europe, and the cranes must be installed further away from the wharves. Furthermore, if the nacelle weight exceeds 800 tons, it will be impossible to lift the nacelle at the far side of the vessel with a single 1350-ton crane. DENZAI estimates that two 1350-ton cranes will be required.

The LR12500 to be introduced, can lift up to 951 tons with a working radius of 48m, thus fulfilling the requirement with only one crane.

The LR12500 will be shipped from the Liebherr plant in Germany in July 2024, and will start operation in October at S-OIL’s Shaheen Project in Ulsan, South Korea. After that, DENZAI plans to operate it in Japan and overseas. Source: DENZAI


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