FEATURE INDUSTRIAL CLEANING
MODULAR SOLVENT-BASED cleaning system for heavy loads
Heat-treating shops must clean workpieces in large quantities before heating and after quenching in oil. A solvent-based system from Dürr Ecoclean provides process reliability
H
eat-treating contractors, metalforming shops and businesses
in the automotive and aircraft industries in particular require cost-efficient part cleaning and degreasing equipment capable of handling high capacities. To address this demand Dürr Ecoclean has developed an innovative solvent-based cleaning system. The large-chamber EcoCDuty is designed for loads measuring up to 1250 x 840 x 970 mm and weighing up to 1 tonne. Operating with hydrocarbons or modified alcohols, it provides high cleaning quality and process reliability at fast cycle times and is exceptionally easy to operate. 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 intervals of just a few seconds the part cleaning process must not slow 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, favourable investment costs and short delivery times are important.
ADAPTABLE TO INDIVIDUAL USER NEEDS This large-chamber cleaning machine 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 available with one or two stainless steel flood tanks eg 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
12 MARCH 2016 | FACTORY EQUIPMENT
quick flooding and draining of the work chamber and tank is ensured by powerful frequency-controlled pumps. This technology reduces non-productive times and speeds up cleaning processes, thereby reducing costs. Furthermore, these versions comprise a separate filter circuit for each tank. Full-flow filtration of the solvent is provided in the supply and return flow lines by means of three filter units per flood tank. These can be fitted with bag or cartridge filters. As a result, even exceptional cleanliness specifications can be reliably met.
effectively removed by means of appropriately stabilised solvents following oil compatibility testing. Moreover, the unit is perfectly suitable for cleaning off sulphur-containing oils.
HIGH CLEANING QUALITY AT REDUCED COST To ensure a high cleaning quality the EcoCDuty is provided with a pre- degreasing feature using steam. This innovative technology directs the oil- laden solvent straight into the distillation circuit, minimising oil enrichment of the solvent and oil deposits in the flood tank for superior performance. This is made possible by a powerful distillation system capable of handling 400 or 500 litres/hour depending on the solvent employed. The oil collected by distillation is automatically removed via the standard oil discharge system which has a capacity of four litres per hour. Customers who encounter high oil input rates can add a second unit, doubling the capacity of the distillation system to eight litres per hour. To remove particulate contaminants from the solvent the distillation system is preceded by a filter unit. This system further contributes to the good cleaning result and prolongs the service life of the solvent. On EcoCDuty versions with a flood tank
Configured as a steam degreaser in its standard version the system is available with one or two stainless steel flood tanks
RELIABLE AND ECONOMICAL OPERATION When designing the EcoCDuty Dürr Ecoclean placed great emphasis on low operating costs and high availability. This starts with the 7" colour 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: no additional energy input is necessary. When it comes to part feeding the EcoCDuty adapts to customer needs. Depending on the equipment configuration it can be loaded manually using a pallet truck or forklift. Moreover, it supports custom loading solutions from semi-automatic single-station to fully automatic multi-station systems. Large maintenance openings offer an
additional advantage as they provide very easy and fast access to all service-related components. This minimises system downtime for maintenance work. To protect the system from dirt and heat in harsh production conditions, a roof with internal ventilation is available to match the machine's attractive design.
Dürr Ecoclean T: 01926 474080
www.durr-ecoclean.com
/ FACTORYEQUIPMENT
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56