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Hitachi

Corporate InformationEnvironmental Activities

[Image] Use water with more care.

The latest advanced water treatment facility has been adopted to recycle valuable water resources.

Kyushu Works, Hitachi Automotive Systems, Ltd. engages in the design, development, and manufacture of the "propeller shaft" essential to the 3 functions of a car, "run, turn, stop" and the "piston" of the engine. The company believes that the preservation of the global environment is of utmost importance in production activities. Therefore, the factory is actively working to manufacture in an environmentally conscious way, and is especially focused on "recycling water", by collecting and reusing the industrial water used during the manufacturing process. Distillation-type decompression-dehydration devices and advanced water treatment equipment were introduced in 2005 to reinforce the wastewater treatment plant. Wastewater recovered from the manufacturing process goes through pressurized flotation separation, sludge disposal, adsorption filtration, ion-exchange resin washing, and is reused again as industrial water during the manufacturing process. Through these efforts, the factory reduced wastewater and industrial water use. In 2014, the factory also achieved the final disposal rate of less than 0.1 % by sorting, reusing and recycling the industrial waste. In addition, LED lights and high-efficiency transformers were installed, and compressors and pumps were changed to those with inverters as a part of energy conservation activities.

[Image]Not just water and recycling of waste,but the conservation ofenergy is important too.

2,700 fluorescent lampsin the factory were changed to LED lights.

Eco-Factories & Offices Select Certification Item

[Image] Efficient water recycling

Efficient water recycling
Implemented a scheme for reusing or recycling all water used in all production processes (FY 2015)

[Image] Recycling of waste and other resources

Recycling of waste and other resources
Achieved a final disposal rate of less than 0.1%, and 100% registration rate in electronic manifests in Japan (FY 2015)

Product Information

[Image] Propeller Shaft

Propeller Shaft
The drive shaft (propeller shaft) receives and transmits the rotation and torque (rotational force) generated by the engine to the rear wheels via differential gear.

[Image] Piston

Piston
The piston converts the explosive power of the fuel's combustion gas into mechanical force (rotation), and is the heart of the engine. It is one of the most important parts for the car to run.