The copper solenoids must be removed and re-spooled during maintenance of electrical motors or generators. In order to do this, the resin or varnish layers covering the copper solenoids have to be firstly removed. Even if the overhauling of an electrical motor is not possible anymore, it is always worth to remove the resin for recycling purposes, in order to use elsewhere the copper solenoids or to be able to sell pure copper to metal dealers at interesting prices.
SCHWING cleans electrical motors and generators by means of thermal cleaning, by which electrical motors or generators or part of them such as stators and rotors are freed of adherent resins and varnishes under the influence of heat and oxygen. Grease and other residues will also be completely removed during the process and the pure copper gained.