Most scale ice machines have a common technical principle – the water bath in which a deep-frozen ice making cylinder (evaporator) rotates. This water bath is susceptible to arising of noxious bacteria and therefore has to be cleaned several times per week.
Due to time and expense, this is often neglected. A further risk of hygiene and expense of this conventional principle is that the refrigeration means has to be led through the ice making cylinder. The sealing of the refrigeration circulation at the axis of the rotating cylinder is expensive and susceptible to wear-out. Unhealthy refrigeration oil can escape and contaminate the ice.
NOCK manufactures ice machines with an innovative system – a stationary cooling disc (evaporator), meaning that the water storage tank (water bath) does not exist. Fresh water is brought directly onto the cooling disc from the fresh water supply and then scrapped-off after freezing.
The potable water quality directly reaches the cooling disc, and as there is no water bath, no bacteria or mud arises. Sanitisation by UV light or other expensive disinfection is not necessary and there are no problems with the remaining water after disconnecting the machine.
Because the evaporator does not rotate there is a closed circulation of refrigeration means without rotating joints. The access features of the evaporator are tightly soldered, avoiding refilling costs due to leakage.
