This variant provides still further flexibility in spiral freezer design. Designed primarily for vertical airflow, these units can either be used with a spiral freezer (to throw air to the top of the spiral, then draw down through the centre) or mounted above a straight belt, blowing directly down onto the product in a tunnel freezer.

The primary defrost design consists of a stainless steel spray sparge running along the length of the unit. Supported above the coil face, this sparge contains spray nozzles set out to give even coverage over the coil face, providing an effective warm water defrost.