Dürr Ecoclean’s EcoCCore incorporates preliminary steam degreasing

The resulting enhanced degreasing performance offered by the Dürr Ecoclean EcoCCore is particularly beneficial with parts that will be coated or laser-welded after cleaning. It also offers advantages under elevated oil drag-in conditions or when a second flood tank is used for a preservation treatment. The unit is designed to use both non-halogenated hydrocarbons and modified alcohols. It operates under full vacuum conditions and is based on a standard equipment level in that it has two flood tanks, heat recovery, and full-flow plus bypass filtration capabilities. The EcoCCore, which occupies around 5% less floor space than the 81C/P it supersedes, has a work chamber designed to hold cleaning tanks measuring up to 670 by 480 by 400 mm, thereby offering one-third more loading volume. Throughput can thus be doubled, depending on the basket size. The maximum load weight capacity has likewise been increased by more than 30% to 200 kg with consequential per part cleaning cost reduction. EcoCCore pumps are equipped with variable-frequency drive units that control the volumetric flow rate in such a manner that both ultrasound and filtration can occur simultaneously. This means that particles are discharged throughout the process cycle instead of settling at the bottom of the work chamber before being filtered. 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. Internal heating elements have been removed from the stainless steel flood tanks. This design eliminates particle trap points or chip accumulation thereby reducing any re-contamination of parts. Both flood tanks are heated entirely with thermal energy recovered from the distilling circuit. The heat input from the distilling system can be adjusted as needed in multiple stages. As a result, energy is saved and a high throughput can be achieved even with high oil drag-in rates. The EcoCCore is simple to operate using its 7-inch colour display based on self-explanatory pictographs. A temperature needs to be preset only for the first flood tank; a matching setting for the second tank is then selected automatically. Process tracking and maintenance, too, are rendered intuitive and more convenient by the integrated part visualisation system.