Heat exchanger for decorative electroplating

Case study no. 18:
Jewelry electroplating


Initial situation

In a decorative electroplating plant in Spain, an existing system of electrically heated tanks was to be replaced due to fire protection measures. To this end, the existing pools were to be retained, but no longer operated with electric heaters. In addition, high product quality and controllability are required, as jewelry is electroplated with very expensive materials.


Task definition

Replacing electric heaters with internal heat exchangers requires a precise design of the exchangers in a small space. Corrosion resistance to all types of chemicals combined with simple installation should keep investment costs as low as possible. Precise performance specifications and geometries of the baths are important for this.



Calorplast immersion type heat exchangers are available in all sizes. In this case, we use the mini exchanger. With a similar space requirement to an electric heater, it can take over its tasks 1:1. These mini-exchangers are still manufactured to customer specifications and supplied ready for installation.



The risk of fire in decorative electroplating, with all its negative consequences, is significantly reduced by using heat exchangers powered by heating water. The high industrial production quality of corrosion-resistant heat exchangers also ensures trouble-free and low-maintenance operation.



Conceptual image of idea and innovation