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OEM Update
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Optimised cleaning quality, reduced cost, high flexibility

By admin December 12, 2013 7:21 am

EcoCCore by Dürr Ecoclean, the new generation of solvent-based part cleaning systems
The new EcoCCore is designed to use non-halogenated hydrocarbons and modified alcohols. Due to a one-third increase in product throughput and load weight it enables a marked reduction of per-unit cleaning cost
With its EcoCCore system now superseding the previous 81C/P equipment series, Dürr Ecoclean is setting new standards in solvent-based part cleaning. This is due, on the one hand, to a one-third increase in product throughput and load weight which yields a marked reduction of per-unit cleaning cost. On the other hand, the new machines are equipped for improved cleaning performance, superior process reliability and significant energy savings. Designed to use non-halogenated hydrocarbons and modified alcohols, the EcoCCore also boasts superior ease of operation, less space demand and a translucent design.
Whether in machining or metal forming, aerospace technology, medical equipment manufacture or other industries – wherever grease-free surfaces must be obtained, solvents are the part-cleaning medium of first choice. Users’ priority lists are topped by process reliability, cost and energy efficiency, high speed, availability, short delivery times and eco-compatibility. Accordingly, when Dürr Ecoclean set about developing the innovative EcoCCore, the focus was placed on these factors. The new system is characterised by an extensive standard equipment level including, e.g. two flood tanks, heat recovery, and full-flow plus bypass filtration capabilities. Switching from non-halogenated hydrocarbons to modified alcohols and back is particularly easy, so the EcoCCore – which operates under full vacuum conditions – is a forward-looking solution which also addresses changing future needs. In combination with appropriate solvents, this system can even remove chlorinated oils from parts surfaces.
High throughput for reduced cost per unitThe work chamber is designed to hold cleaning tanks measuring up to 670 x 480 x 400 mm, thereby offering one-third more loading volume than the 81C/P predecessor system. Throughput can thus be doubled, depending on the basket size. The maximum load weight capacity has likewise been increased by more than 30 percent to 200 kg. With a cycle time of less than 8 minutes this provides a significant reduction in per-unit cleaning cost.
Innovative technology for optimised cleaning qualityA major step towards improved cleaning quality lies in the new preliminary steam degreasing process. Here the oil-containing distillate is not passed into the flood tank as usual but is directed straight into the distilling system. This minimises oil deposits in the flood tank and an undesirable oil enrichment of the solvent. The result is an enhanced degreasing performance that will be found particularly beneficial with parts to be coated or laser-welded after cleaning. In addition, the preliminary steam degreasing step offers advantages under elevated oil drag-in conditions or when a second flood tank is used for a preservation treatment. This is made possible by an almost doubled distilling capacity. Another innovation boosting cleaning performance is the capability to use ultrasound and filtration simultaneously. Here particles are discharged throughout this process cycle, opposed to conventional systems whereby they can settle at the bottom of the work chamber before being filtered. To this end the EcoCCore pumps are equipped with variable-frequency drive units and control the volumetric flow rate in such a manner that the ultrasonic system can exert its effect. This efficient and flexible combined filtration system ensures an effective discharge of particles. Moreover, the unit comes with a frequency-controlled rotary drive for turning and high-accuracy positioning of parts. A “gentle” operating mode prevents sensitive parts from getting dropped or displaced during start-up or handling operations.

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