Oven with controlled air December 2014 Spray 25 Environmental responsibility Machine suppliers may address environmental responsibility in two areas: 1. Optimize the finished container 2. Optimize the process to produce it The finished aerosol container may be three-piece, IE or DWI. The new DWI technology not only has economic advantages, but offers the following significant opportunities to support environmental responsibility: • DWI aluminum cans are made from coil material, which includes a significant amount of recycled material. Suppliers can offer recycled content exceeding 50%. • DWI aluminum cans use up to 30% less material than IE cans • DWI steel (tinplate) cans may be collected with magnets from household waste streams. With the new DWI monobloc steel cans, brand owners can combine the advantages of a monobloc can with the benefit of steel cans The can-making process requires energy, air and operating supplies such as water, lubricants, coolants and detergents. Newer machines, such as highly efficient ovens, typically help reduce the amount of air needed by 25%. In several steps, a can maker may save up to 80% of thermal energy2 with improvements such as controlled exhaust systems and decentralized thermal oxidation. Mall Herlan also offers cogeneration systems. In summation, the process of can manufacturing is related to the environmental sphere of Vanderbilt University’s three spheres of sustainability. Together with the social and economic spheres, these agendas reflect the responsible machine supplier’s commitment to sustainability. SPRAY Endnotes 1. http://www.vanderbilt.edu/sustainvu/who-we-are/what-issustainability/ 2. J. Haeske, CanTech International November 2012
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