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Freezing
Systems

Dale Spiral Freezers are designed around a concept familiar to the food process industry incorporating standard equipment, which is well proven in continuous production. However, design changes have been instituted in the construction of the conveying system to improve accessibility, flexibility, mechanical performance and hygiene. Airflow design and evaporator selection has also been revised to enhance product freezing and product weight loss, Dale Spiral freezers have quickly gained a reputation in the industry for achieving product core temperatures in given retention times.

In designing the equipment, emphasis has been place on flexibility such that each machine can be specified to comply exactly with customer requirements.

The flexibility is not limited to choice of belt width, type or effective belt length but applies also to the specification of materials, designation of, scope of supply and installation.

Both internal and external surfaces of the drum assembly are constructed in stainless steel for a hygiene and durability purpose. In the case of smaller machines, the drum assembly can be of a welded construction and therefore delivered as a complete unit. In case of all other machines the drum assembly is delivered in sections for ease of transportation and especially where installation access is tight.

Dale’s own Blue Belt is being used more and more in the industry and is preferred these days over using stainless steel belting. Both heavy and light products which are either packaged or raw can be frozen on plastic belt depending upon the type of belt selected. Belts can be fitted with unique lane dividers to keep products apart or to transport different products at the same time through the spiral from and onto separate conveyors. 75% of spirals supplied by Dale, have Dale's own Blue Belt plastic modular belts installed on them and we are proud to have it installed on two of the biggest spiral freezers in the Southern hemisphere with through puts of 7.5 and 8 tons an hour of IQF chicken.

Dale was the first company to colour their belts blue in colour so that easy visual detection can be carried out. Dale also supply and stock a wide range of stainless steel grid or overlay belts which are preferred by certain customers.

Optional hygiene systems can be requested and designed into the system from the onset. Full or partial (CIP) cleaning in place systems can be accommodated to clean the entire spiral and evaporator or a simple belt washing system can be provided depending upon the customer’s preference.

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