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Promotion of eco-product development
Our group promotes the development of eco-products by performing design-for-environment assessment during the designing stage. Our group has registered 108 models as eco-products, including the 15 models it registered in fiscal 2008. TCM also registered their transfer crane (RTG) as a super eco-product*. This is our group second super eco-product after a hydraulic excavator, the ZX200-3 model, registered in fiscal 2007.
Super eco-product mark
*Super eco-products are products and services of Hitachi Group with particularly high environmental efficiency that raises the value of the products and services by suppressing emissions of global warming gas (greenhouse gas such as CO2) and reducing resource consumption.
An example of an eco-product
Machines for loading, unloading and transferring containers, such as transfer cranes, are vital at ports, which are the points of connection between marine transportation and land transportation. TCM developed the first hybrid transfer crane (RTG) in Japan in collaboration with Yaskawa Siemens Automation & Drives Corp., as a part of efforts to improve the environment at container terminals. This transfer crane consumes 40% less fuel by charging an electric double-layer capacitor using energy generated while lowering containers and reusing the energy to raise containers.
The transfer crane uses a smaller engine than usual cranes; consequently exhaust emissions are cut by 40%, and noise is also cut by 14 decibels. TCM registered the transfer crane as a super eco-product because its environmental efficiency is high and it significantly reduces the impact on the environment as described above.
Transfer crane (RTG)
In addition, TCM received the award of excellence in the fiscal 2008 Japan MH (Material Handling) Awards (hardware category, MH systems and equipment) of the Japanese Material Handling Society by developing a transfer crane because the research and development of the hybrid model and the significant reduction that is expected both in costs and in the impact on the environment were highly assessed.
