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Innovative Modular Cleaning System Designed for Loads Up to 1 Ton

Heat-treating contractors, metalforming shops and companies from the automotive and aircraft industries in particular require cost-efficient part cleaning and degreasing equipment capable of handling high capacities. Addressing this demand, Dürr Ecoclean has developed an innovative solvent-based cleaning system, the large-chamber EcoCDuty.

This machine is designed for loads measuring up to 1250 x 840 x 970 mm and weighing up to 1 ton. Operating with hydrocarbons or modified alcohols, it provides high cleaning quality and process reliability at fast cycle times. Additional benefits of this modular unit include its exceptional ease of operation and attractive design.

Heat-treating shops must clean workpieces in large quantities, both before heating and after quenching in oil. With punched and shaped parts leaving the press at just a few second intervals, the part cleaning process must not slow down production. In the automotive industry, suspension components and other aluminium and steel items must have a (laser-)weldable surface. In aircraft manufacturing, honeycomb parts, shaped components and pipes impose high demands on the equipment due to their dimensions and specified cleaning results.

Although products differ, the demands on the cleaning system are the same. It must provide enhanced capacity, process reliability, cost and energy efficiency, and speed. Over and above these properties, high availability, ease of maintenance, eco-friendliness, favorable investment costs and short delivery times are important. In developing the new EcoCDuty, engineers therefore focused on these criteria.

This large-chamber cleaning machine built by Dürr Ecoclean uses hydrocarbons or polar solvents (modified alcohols) and operates under full vacuum. Its modular design ensures adaptability to individual user needs. Configured as a steam degreaser in its standard version, the system is additionally available with one or two stainless steel flood tanks -- e.g., for a process comprising steam degreasing and injection flood washing or steam degreasing, injection flood washing plus a preserving step. Vacuum drying is standard on all three versions. Chlorinated metalworking fluids can be effectively removed by means of appropriately stabilized solvents following oil compatibility testing. Moreover, the unit is perfectly suitable for cleaning off sulphur-containing oils.

Reliable and Economical Operation -- Plus Easy Maintenance

When designing the EcoCDuty, Dürr Ecoclean placed great emphasis on low operating costs and high availability. This starts with the new 7" color display with self-explanatory pictographs that makes the cleaning system simple, safe and quick to operate. The stainless steel flood tanks have a smooth surface and come without internal heating components. This design prevents the formation of chip and dirt pockets which could re-contaminate the parts. Customers who do not yet own a steam heating source can order an optional external steam generator to heat the distillation unit. The flood tanks are heated exclusively by waste heat from the distillation system, i.e., no additional energy input is necessary.

When it comes to part feeding, the EcoCDuty again adapts flexibly to customer needs. Depending on the equipment configuration, it can be loaded manually using a pallet truck or forklift. Moreover, custom loading solutions ranging from semi-automatic single-station to fully automatic multi-station systems are supported as well.

Large maintenance openings offer an additional advantage, as they provide very easy and fast access to all service-related components. This minimizes system downtime for maintenance work.

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Dürr Ecoclean, Inc.

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