Mammoet Japan & Tokyo Juki Sign MOU to Bring Ring Cranes to Japanese Project Sites

8 September 2026
Edited By: Ed Freeman

As industrial projects adopt larger components and more modular construction methods, lifting requirements are moving beyond the capacity readily available in Japan. Deploying specialist equipment from overseas requires extensive local compliance, statutory certification, and on-site operational expertise in accordance with Japanese regulations and industry practices.

(Credit: Mammoet)

To help make these projects possible, Mammoet Japan has signed a Memorandum of Understanding (MOU) with leading domestic crane supplier Tokyo Juki Co., Ltd., expanding the ultra-heavy lifting capability available in Japan. The cooperation establishes a practical framework for deploying Mammoet’s specialist equipment in accordance with Japanese regulatory and site requirements.

By making this capability available during early project planning, customers in Japan can assess heavier and more modular construction methods before designs, fabrication strategies, and site arrangements are fixed. This helps to identify more efficient execution approaches early, when they have the greatest potential to protect project budgets and schedules.

With capacities ranging from 1,600 t to 6,000 t, Mammoet’s Ring cranes lift larger components at greater reach while occupying a relatively small site footprint. This opens new options across the project lifecycle, from assembling and installing larger industrial modules to marshalling, pre-assembling, and loading out offshore wind components.

Reducing the number of lifts and on-site assembly activities also simplifies interfaces, reduces work at height, and supports greater certainty around schedules and total installed cost.

Applications include offshore wind, nuclear construction and maintenance, infrastructure, industrial facilities, and the integration or refurbishment of offshore production units.

“Japan is preparing for projects that will require greater lifting capacity and new approaches to construction,” said Yusuke Kakinuma, Representative Director of Mammoet Japan K.K.

“This cooperation creates a practical route for bringing Mammoet’s specialist equipment and engineering capabilities to Japanese project sites, supported by the local knowledge and resources needed to put them to work.”

“Tokyo Juki has built its business by understanding customer challenges and developing practical solutions for Japanese project sites,” said Taku Tsuruoka, President of Tokyo Juki Co., Ltd.

“Through this cooperation, we will apply our domestic experience, skilled personnel, and site resources to support the deployment and operation of Mammoet’s ring cranes in Japan. We expect this to enable Tokyo Juki to expand into new areas of business involving ultra-heavy lifting, such as offshore wind and nuclear power projects.”