Cleaning Unit Eliminates Limestone Deposits and Impurities from Mold Conditioning Circuits

The CDC control unit, offered by Ermanno Balzi, is reported to be an indispensable tool for cleaning molds, capable of eliminating all limestone deposits and other impurities from the molds conditioning circuits. During the molding process these kind of deposits, accumulating over time, obstruct the passage of water, consequentially limiting the cooling efficacy, and thus mold performance.

The CDC is provided with two tanks, one containing a solvent liquid and the other a 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, allowing for maintenance to happen directly on the injection molding machine (IMM) without need for electric supply, and is 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. In order to optimize the cleaning performance of the CDC equipment Ermanno suggests cleaning the thermoregulation circuits one by one to guarantee solvent flow rate where needed. If more circuits are 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, however, it is possible to use a CDC with higher flow rate that is able to feed more circuits at once, which Ermanno says is remedied by its developed CDC C120-P100.

North American customers please refer to DMS Components.