Stalam has developed a rapid in-line defrosting equipment based on the Radio Frequency technology that allows a significant reduction of drip losses and minimises product deterioration due to bacterial growth. This fast, uniform and controlled heating method offers great flexibility in production scheduling and is the ideal solution for many tempering, softening and defrosting processes.

Benefits

Defrosting in minutes

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 liners, etc.).

No drip loss, no product degradation

The process speed and uniformity minimise the risk of product degradation (drip losses, deterioration of sensorial, chemical and physical characteristics, bacteria growth, etc.), thus helping to preserve at its best the product quality.

Higher product yield

Defrosting can be achieved with virtually nil drip loss, that means eliminating completely the weight losses (up to 6-8%) caused by conventional defrosting methods. The improved yield brings immediate economic benefits that allow for an RF equipment pay-back period as short as 6 to 12 months.

Uniform and controlled treatment

The product can be obtained at the correct temperature needed for the next process. Also, weather and external ambient conditions do not affect the treatment, so that it can be controlled accurately and consistently.

Less floor space, reduced process cost

Radio frequency equipment requires much less floor space compared to the traditional, large defrosting rooms or equipment; defrosting costs are also reduced drastically, thanks to the absence of energy losses to the ambient.

In-line process

Thanks to the high process speed, radio frequency defrosting can be carried out continuously, with significant logistic advantages in product handling and production scheduling. The production can be organised 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.

• Radio Frequency at 27,12 MHz.
• Construction in AISI 304 stainless steel submitted to anti-corrosion treatments (passivation, pickling) and shot-peening finish.
• Protection level IP65: the external protection boxes of the RF generator are 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 (for packaged products) or solid surface reinforced polyester (for "naked" products).
• 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
• Modular design