• Benefits of the RF defrosting method

    • Defrosting is achieved in minutes rather than hours/days, even for large product blocks and, if necessary, directly inside packaging used for storage or retail distribution (carton boxes, polyethylene bags, etc.);

    • The processing speed and uniformity minimize the risk of product degradations (drip losses, deterioration of sensorial, chemical and physical characteristics, bacteria growth, etc.), thus helping to preserve at its best the product quality, especially in the case of heat-sensitive products;

    • The product can be obtained at the correct temperature needed for the next stage of processing;

    • Thanks to the high processing speed, radio frequency defrosting can be carried out continuously, with significant logistical advantages in product handling and production scheduling. The production can be organized according to “just-in-time” criteria – a great advantage in the case of sudden orders, last-minute changes in the order or under processing, etc.;

    • Weather and external ambient conditions do not affect the process, so that it can be controlled accurately and consistently;

    • Radio frequency equipment requires much less floor space compared to the traditional, large defrosting rooms/equipment; relevant processing costs can also be reduced drastically compared to conventional techniques.

    Specific features of the RF defrosting equipment

    Radio Frequency at 27,12 MHz.

    Construction in AISI 304 & 316 stainless steel submitted to anticorrosion treatments (passivation, pickling) and shot-peening finish.

    Protection level IP65: the external protection boxes of the RF generator is made of insulating sandwich-type panels with sheeting and bearing frame in AISI 304 stainless steel.

    Wide conveyor belt (up to 180 cm) made of certified food-grade rigid polyethylene modules or solid-surface reinforced polyester, depending on the product to be processed.Built-in conveyor belt & tunnel washing facilities and full internal access for cleaning through the multiple side panel doors.

    PLC control system for multiple product recipes.

    Production capacities can vary depending on the type of product to be defrosted and the final temperature required.

    STALAM RF defrosting equipment is available in sizes from 3 kW to 85 kW (output RF power values). Multiple modules can be combined to increase the production capacity even at a later stage as production requirements increase with business growth.