General description:
Frigo Impianti's “Bi-Flow” Tunnel is a very compact machine, designed for use in production lines, which allows quickly deep-freezing or fast-cooling all those “thin and flat” products that must remain motionless on the conveyor during processing, such as, for example, hamburgers, etc.
The special feature of this machine is its ventilation system that, using a series of micro-perforated metal arms arranged both above and below the conveyor belt, generates thousands of equal and opposing high-speed jets of air that hit the product uniformly, quickly cooling it and keeping it motionless during its passage.
This machine is also ideal for “surface hardening” a wide range of products.

Ventilation system:
The tunnel's principal technical characteristics are:

1. a structure entirely constructed from stainless steel with special techniques for ensuring proper sanitization during washing;
2. a conveyor belt made of certified polyethylene and driven by a gearmotor, which ensures the absence of lubricants and hygiene;
3. a series of turbo fans positioned above the air distribution system.

Electrical control:
The control system consists of a control panel equipped with a touch screen controller that regulates the speed of the conveyor belt, the air and the temperature.