When procuring a new cleaning system, investment costs often tip the scales, for example when selecting process technology or equipment. However, costs downstream must also be considered.

Resource efficiency as a part of the life cycle cost consideration

Energy expenditure for evaporating open baths

Per m² bath surface, dependent on temperature

At 80°C, the average heat output is approx. 8 kW. Of this, only some 60% is caused by pure evaporation losses. The remainder is therefore affected by the energy needs of the parts to be processed and general heat losses.

Water loss from open baths

Per m² bath surface, dependent on temperature

The water lost from open bath systems is also affected significantly by temperature and the necessary extraction capacity.

Plant systems in an energy efficiency comparison

The type of system selected fundamentally determines the overheads in energy efficiency terms.

Comparison of energy consumption

Without considering the effects caused by the new approach to a cleaning bath, a water-based single chamber system has been revealed as the more efficient system with the greatest opportunities for increased efficiency. As a double chamber system, this effect is increased by the distribution of the basic load on a higher throughput.

  Single chamber system
Hydrocarbon water-based
Single chamber system
Double chamber system
Serial immersion system
Power drain
Full load operation (kW)
33.5 27.5 45.0 91.0
Max. throughput (Loads/h) 5(Cycle time 12 min) 5(Cycle time 12 min) 9(Cycle time 6.5 min) 13.3(Cycle time 4.5 min)
Energy requirement (kWh/load) 6.7 5.5 5.0 6.8

An example of energy saving

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