Case

Development of coal shipping equipment at Port of Vostochny, Russia

We participated in the project at the Port of Vostochny, the largest coal transshipment base in the Russian Far East area, to expand the site and build an additional terminal. We developed a set of coal loading & shipping equipment to meet customer expectations and doubled the annual coal-handling capacity to about 30,000,000 t from 16,000,000 t.

Development of a mining excavator capable of stably operating 2,000 meters under the sea

We participated in a project for mining seafloor hydrothermal deposits, which are expected to be a domestic source of marine mineral resources. MITSUI MIIKE MACHINERY developed a mining excavator that can operate stably and efficiently in deep sea at a depth of 2,000 meters. And this project succeeded in testing mining of seafloor hydrothermal deposits for the first time in the world.

Development of equipment for excavating hard rocks at sites where blasting is not possible

Since excavation by blasting is difficult at sites near a residential area, it is necessary to excavate by machine. However, excavating hard rocks takes time. Hence, Tasisei Corporation and MITSUI MIIKE MACHINERY jointly developed a machine that could excavate even hard rocks freely. Consequently, it became possible to efficiently perform excavation even in areas with hard rocks.

Development of an efficient, small hydroelectric power generation system

In response to a request from Kyushu Hatsuden, which engages in small hydroelectric power generation projects in the Kyushu region, we undertook the development and introduction of a small hydroelectric power generation system for a new power station scheduled for construction. We succeeded in creating an environment that could generate approximately 5% more power than the amount our customer had planned, while assuring rapid response in the event of an unforeseen situation.

Development of low-cost pool upgrade method

There were many cases in which an aging concrete pool had to be renovated, but there was no budget for totally renovating the pool. Hence, maintenance costs were running high due to life-prolonging measures, such as inexpensive painting renovation and sheet affixing renovation, and repeated maintenance every few years. Therefore, instead of removing the entire pool and constructing a new one (rebuilding), we developed a stainless lining upgrade method of reusing the body of the existing pool and affixing a stainless lining inside the pool. We succeeded in reducing costs and construction time and making the appearance and durability of the pool comparable to those of new ones.