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across its entire manufacturing operation. “The merger of the two companies and consequent

uniformity in their product range as well as processes and IT concepts has been implemented successfully and effectively. As a result, the entire product portfolio is no more than three years old, and since both companies have been concentrating on energy efficien- cy and saving resources since the middle of 2000, the machine solutions are the state of the art today in terms of energy and water consumption, as well as material savings,” he says.

Above: Motan’s technical centre at Friedrichs- dorf allows hands-on evaluation

Technologies such as Motan’s ETA plus dryers play a

role in this. The ETA plus system uses a system of sensors to determine the optimal energy requirement for the drying process and automatically adjusts it as required. The system can also be used with heat exchanger technology to feed return air energy directly back into the process. And the Silentline double walled material conveying pipes help to reduce heat losses and energy-wasting leakages from the materials handling system.

Centre: Ulrich Eberhardt,

Motan Holding – Sustainability is the key to

value creation

Lower right: Thomas

Brüser, Gefran - Saving energy is the hot topic in plastics


Creating value is key “We are convinced that sustainability is the key to value creation,” says Eberhardt. “Times have changed and conserving resources is now not just ecologically desirable but also an urgent necessity. In many parts of the world, many basic materials and energy in particular are scarce and expensive. In short, with the meteoric growth of many large emerging economies, resources are increasingly in short supply. Nowadays people everywhere want to exploit savings potential with a view to cutting costs.” Battenfeld Cincinnati CEO Jürgen Arnold says the company’s Blue Competence programme extends far beyond its own operation, involving not only its own machine designers but also its suppliers. In addition, the combination of the former Cincinnati Extrusion and Battenfeld Extrusion- stechnik operations into the single entity it is today presented an opportunity optimise efficiency

52 INJECTION WORLD | September 2013

Making the right drive choice Thomas Brüser, managing director of the German subsidiary of Italy’s Gefran, confirms that energy saving is one of the top priorities for plastics machinery buyers today. “Saving energy is currently a hot topic in plastics manufacturing. Such savings can be made by replacing hydraulic drives with electric ones or only using hydrau- lic drives where they are absolutely essential. Gefran has developed the frequency inverters and servo inverters necessary to do that,” he says. Brüser says a servo-hydraulic drive can produce

energy savings of as much as 25% compared with a purely hydraulic drive system. If a hydraulic drive is replaced with a fully electric system, the potential saving is around 35%. The main obstacles to conversion are the long service life of modern machines, the fact that certain large applications cannot be taken on with all-electric technology, and cost. “Electric motors are still more

expensive. But that is bound to change in the next few years, because a lot of research is being done into electric motors in the car industry in particular. As the numbers rise, the price will fall,” he predicts. Find out more about the VDMA Blue Competence initiative here

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