The CDC test station was designed to remove limestone is deposits from thermoregulation circuit molds. Once set, these kinds of deposits during the molding process, can obstruct water flow, thus limiting cooling efficacy. The limestone itself acts as an insulation layer between the thermoregulation fluid and mold. One millimeter of limestone deposit insulates as much as 10 mm of steel, meaning that thermoregulating a mold with limestone deposits in the circuit affects the performance as much as shifting channels several millimeters from the molding surface.

The CDC test station is provided with two tanks, one containing solvent liquid while the other contains passivating liquid. The first liquid descales the calcareous deposit, while the latter restrains the corrosive action of the solvent occasionally left in the circuit. The CDC is completely pneumatic and equipped with a cooling circuit automatic emptying device.

The CDC machine is able to clean the circuits as long as a minimum solvent flow rate is guaranteed. If the channel is completely closed the CDC machine cannot be used. In order to optimize the cleaning performance of the CDC equipment we suggest cleaning of the thermoregulation circuits one by one to guarantee solvent flow rate where needed. If more than one circuit is connected in parallel the solvent automatically flows where the pressure drop is lower and the cleaning efficacy will be lower in the obstructed channels. In case of standard maintenance it is however possible to use a CDC with a higher flow rate able to feed more than one circuit at a time. This is what CDC C120-P100 was developed for.