Activities Directed Toward Creating a Society Based on Recycling

We are working to limit the discharge of waste material from business activities, as well as to recycle and make effective use of that material.

Measures to reduce environmental impact

In order to build a recycling-oriented society, we at the Sumitomo Heavy Industries Group are controlling the discharge of waste from our business activities, recycling waste, and making efficient use of resources as well as working on initiatives to reduce the burden on the environment through our business activities.

Limiting the generation of waste and reducing the amount of waste discarded

In Japan, our target for the amount of waste discharged in fiscal year 2013 is a 13% reduction relative to fiscal year 2007. In fiscal year 2012, we worked to increase the efficiency in production activities, do away with waste, and limit the amount of metal scrap and other such waste generated. As a result, emissions amounted to 28,116 tons, which was a 17% reduction from fiscal year 2007, and which achieved the 12% reduction target for fiscal year 2012. The target for the amount of waste discarded was under 0.5% of emissions, and the 3.4 tons of waste discarded in fiscal year 2012 was only 0.01% of emissions, which exceeds the target by a significant margin. In terms of basic units, this represents a 3% increase.

The combined figure for Japan and other countries shows an increasing trend in emissions due to production increases in other countries. In terms of basic units, however, the trend is diminishing.

Waste generated

Waste generated (basic sales unit)

Zero Emissions in FY2012 Achieved by Entire SHI Group

Zero emissions of waste

The SHI Group has defined factories at which the amount of waste disposed of as landfill as a percentage of total waste (the landfill rate) is less than 0.5% as zero emissions factories. We have been promoting this program since FY2005, and as a result in FY2012 we achieved zero emissions at all seven works and all eight Group companies. We were also able to achieve a zero emissions rate of 0.01% for the SHI Group as a whole, greatly exceeding the target. We are operating in other countries with the target of making less than 10% of total waste go to landfill. In fiscal year 2012, the figure was 2.2%, which achieved the target.

The combined figure for Japan and other countries shows that the shift to recycling is progressing smoothly, and the percentage of waste going to landfill was 0.7% in fiscal year 2012. Recycling by separation of waste materials is crucial for the achievement of zero emissions.
We intend to continue with rigorous separation of waste so that we can maintain zero emissions, and our aim is to have factories that are kind to the global environment.

Reducing Water Consumption

Water use

Reducing water consumption is linked to protecting resources and reducing discharge into public water systems. The SHI Group has set a target of reducing water consumption in FY2013 by 25% compared to FY2005 levels. In FY2012, we continued to install visible water pipes (aboveground installation) in order to identify water leaks and eliminate waste. As a result, we achieved a 39.5% reduction from FY2005 levels. For FY2013, we will aim for further reductions without allowing ourselves to be limited by target figures. We have also been engaging in reduction activities in other countries since fiscal year 2010.

Combined figures for Japan and other countries also show a diminishing trend.


Energy-saving activities at Nihon Spindle Mfg. Co., Ltd.

Nihon Spindle Mfg. Co., Ltd., which is a member of our Group, is a development proposal-type enterprise with a demonstration center. It develops and manufactures dust collectors, clean rooms, precision air-conditioning equipment, machine tools, tire manufacturing equipment, cooling towers, building materials (schoolroom partitions, etc.), etc.

The main factory of Nihon Spindle Mfg. Co., Ltd. is located in Amagasaki City, Hyogo Prefecture. An Environmental Committee was set up there, and in fiscal year 2011, an Energy-Saving Committee was also established that includes managers from each of the company's three business divisions as members.

The Environmental Committee takes the lead in all of the company's environmental protection activities. It engages in detailed monitoring with energy-saving patrols, improvement programs, and other such activities. The Energy-Saving Committee is responsible for headquarters functions, working from reports and other input provided by the Environmental Committee to formulate improvement plans and issue instructions for implementation and so on.

These two organizations have further increased the company's capabilities for promoting energy-saving activities, and the company has cleared all the Sumitomo Heavy Industries Group environmental targets.

Energy-Saving Committee

Examples of Energy-Saving Activities

Energy saving in machine tools
The following measures were implemented to save energy with machine tools that consume more electric power.
  • Reduce standby power for machine tools 4-8% per day by standardizing work and upgrading maintenance (cleaning and replacing filters, changing oil, etc.)
  • Reduce standby power for machine tools 34-65% per day by improving hydraulic actuation circuits
Green logistics
A full-time logistics team controls logistics operations for the whole company. Continuous engagement in measures like the following resulted in a 30% improvement (basic unit CO2/deadweight tons) in fiscal year 2012 relative to the reference year (FY2006). This achieved the Group target.
  • Improve loading ratios by placing vehicle dispatch list on companywide network and coordinating among business divisions
  • Promote consolidation (shipping jointly with other companies) of loads with nearby companies
  • Promote modal shift using railway container transport, etc.
Measures to deal with electric power supply shortages
In order to deal with electric power supply shortages during the summer of 2011, the company enacted power-saving measures in work shifts, indoor temperature settings, reduction in the number of lights turned on, and so on. The following equipment investments were also made on an emergency basis. As a result, the company met or exceeded the required government target (17% or greater reduction at peak times) and cooperated throughout the power-saving period.
  • Convert to gas heat pumps for office air conditioning (power saving of 2.50% per month)
  • Change office window sashes to double panes (power saving of 1.50% per month)
  • Change to inverter compressors (power saving of 0.10% per month)
  • Increase number of skylights in factory roof (power saving of 0.20% per month)
  • Install power monitors on main facilities and equipment (power saving of 1.00% per month)
  • Change spot coolers to cool air blowers (power saving of 1.96% per month)
  • Upgrade factory electric fans to energy-saving models (power saving of 0.37% per month)

Change to double-paned windows

Skylights in factory roof

We intend to continue with efforts in environmental protection and electric power saving through measures like these to reduce standby power to equipment and by working steadily on cumulative activities. We also intend to expand the environmental protection activities and energy-saving activities at the company's factory to our factories in China and Malaysia, to promote overseas programs to reduce CO2 emissions, as well.