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ENVIRONMENT Avoiding waste by using recyclable aluminium cores The aluminium we use is sent to us in large coils 10,000 metres in length, that are wrapped around either a cardboard or aluminium ‘core’. We purchase approximately 23,000 of these in Europe every year to manufacture our beverage cans. This means there is potentialy 23,000 cardboard coil cores sent to landfill waste sites each year in Europe alone. Avoiding waste When the coil supplied has an aluminium core, they can be crushed flat and sent back responsibility <strong>case</strong> study to our aluminium suppliers and recycled, creating no waste. Two of our four European suppliers have therefore been converted to using aluminium cores, with the intention of converting the remaining two by the beginning of 2007. This change reduces the amount of waste going to landfill and greatly reducing the amount of transport needed to return the coil cores to suppliers, due to our ability to crush and compact the metal cores on site ready for transit. WASTE MANAGEMENT Reducing waste to landfill and eliminating unnecessary transports Onsite waste bins containing the old cardboard coil cores waiting to be picked up by suppliers Used new aluminium cores after having been crushed and palletised on site ready for recycling
ENVIRONMENT Working with steel suppliers to reduce waste We have launched a number of projects in relation to the steel we use to manufacture beverage cans. Each project is different and has varying impacts. A common theme through them all is the minimisation of scrap steel or coil packaging going to landfill sites around the world, together with the additional benefits of the reduction of transport required. ”By working with suppliers we share the benefits with the whole industry” Maximising steel coil weights We aim to maximise the steel coil weights used within our sites to help achieve the following environmental benefits: • Less fuel and trucks used to deliver the coils. • Less packaging required (wood, metal and plastic). • Less use of forked lift trucks at our site reducing fuel consumption. Three of our major steel suppliers have been asked to look at producing the maximum responsibility <strong>case</strong> study possible coil weights within their production constraints that can be processed at our steel plants within their coil handling capabilities. The project is progressing well despite the constraints experienced by the suppliers in the restriction of maximum ‘payloads’ that can be transported by truck within Europe. Reducing packaging We also have a project looking at reducing the amount of packaging used by suppliers on their steel coils arriving at our sites. The constraint on this project is to not compromise the level of protection required for the coils in transit, but to establish the lowest acceptable level of packaging necessary to prevent damage to steel whilst being transported and to protect it against the weather (steel rusts!). The environmental benefits for this are less packaging and less packaging disposal required (waste). Laser welded coils Steel coils are traditionally welded by conventional non-laser methods. When coils of this nature are run at our sites, the line is stopped and the section of coil containing the weld is cut out – usually two or so meters. With the introduction of laser welded coils, our lines have detectors that identify the laser weld position on the coil and alert line operators who then momentarily stop the line to sweep out the can cups formed at the line of the weld with subsequent minimal loss of metal. The benefits here are: WASTE MANAGEMENT • Easier maximisation of coil weights as Rexam allows a higher ratio of laser coil welds than “conventional” welds. The benefits of higher coils weights are listed earlier. • More steel per coil is used to make cans. This means that there is better use of the energy used to produce the coil. • Less scrap is produced during the process. These changes per coil may not seem that much, but when you consider the number of coils used (over 12,000 p.a.) and the number of steel cans produced (over 4 billion p.a.), the impacts are significant.
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