Spiral Freezers
• Cryogenic spiral freezers
• Mechanical spiral freezers
• Cryogenic spiral freezers convertible into mechanical spiral freezers

Freezing Tunnels
• Continuous in-line I.Q.F. freezing tunnel
• “Cryofood” cryogenic freezing tunnel with trays
• “Cryofood” mechanical freezing tunnel with trays
• Quick-freeze linear tunnels

Freezing Chambers
• Mechanical freezing chambers
• Cryogenic freezing chambers

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• Leavening
• Pasteurization
• Baking
• Protection
• New Production Lines


“Cryofood”™ Type Mechanical Tunnel Freezer

Technical characteristics
This type of system is built in a rather different manner compared to traditional mechanical systems, and provides the following advantages:
a) it saves much of the refrigerating potential. This is due to externally mounted motors driving all of the fans, including those installed inside the chamber. This way, no refrigerating potential is drawn from the freezing process.
b) Format flexibility. If needed, the working distance between two trays can be doubled by simply extracting some of the trays (every other tray) and synchronizing the feed rate again
c) Compact size. Given its interesting output capacity, the size of the machine – basic overall dimensions in particular – is rather small. The distribution of volumes has been optimized thanks to accurate engineering.

Functional description of machine
This system is used to obtain the rapid freezing (deep-freezing) of products arranged on trays.
Machine operation is very simple.
A chain device allows trays to advance automatically, from the loading area onto a track that runs along the refrigerated box, and up to the product unloading area after the product has been frozen.


The trays move along the following route:
• arrival from the previous processing station (oven or cooler)
• freezing cycle
• unloading or transfer to other processing stations


At the end of this track, trays are automatically brought back to the loading area.
The track runs along a closed circuit; this means that trays never leave the machine, so there is no need to move them manually.
The trays move along the following route:

• loading
• rapid freezing cycle
• unloading
return to loading area

all is done automatically and without the trays ever leaving the work cycle.

Two motor speed variators placed outside the refrigeration box transmit motion to the conveying mechanism, so product stay-time in the freezing box can be adjusted according to product freezing time requirements.
The cooling of the isolated chamber is obtained by using cold energy of adequate power to cool an evaporator situated inside the chamber and placed above the tray feeding system.
The inside of the chamber is highly ventilated to facilitate the quick freezing of products; heat exchange between air and product occurs at a speed of approx. 3 metres/second throughout the chamber.
The evaporator is equipped with an automatic quick defrosting system that melts any ice formed by humidity condensate. Defrost water is channelled outside the chamber.



Cleaning and defrosting at the end of the work cycle are easy to perform because the box is provided with a door which gives the operator full access to the inside of the machine.
To make maintenance or access to the upper parts of the system easier, the machine is provided with a gangway that surrounds the construction about 3 metres above ground, complete with banister and stepladder, all in accordance with applicable health and safety regulations.
The machine is manufactured in accordance with applicable regulations and is supplied with a certificate of conformity with European Directive EEC 89/392.