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Textile

Dryers for yarn packages and tops

"RFA/HP" dryer


This revolutionary drying equipment, specifically designed for yarn packages, combines the RF technology with a forced air circulation system through the product in a conveyorised type dryer.

It is the first time worldwide that a passing-through air flow can be obtained in yarn packages in a continuous throughput drying equipment.

The “RFA/HP” dryer has the highest hourly productivity among all Radio Frequency dryers having the same size RF generator, yet at a reduced drying temperature.

The air forced through the product is heated up to the desired temperature without using any external (additional) energy source by recovering the heat dissipated by the RF generator. Both the RF energy and the warm air forced through the product contribute to water evaporation. This combined process, other than being extremely efficient, enables a precise control of the product’s internal temperature, thus optimising the drying quality results.

The effectiveness of the air in both cooling the generator and drying the product can be further enhanced by fitting a heat pump in the system, so that the ambient air is treated in 4 distinct phases before being forced through the yarn: filtering, cooling and dehumidifying, heat recovery from the RF generator, heat recovery from the heat pump.

The operation of the dryer is fully automatic and managed through a PLC where all different “recipes” for various yarn package types can be stored and recalled. Bar code scanner for product identification and auto-setting of the machine, modem connection for on-line communication and trouble-shooting, etc. are all optional features that can be implemented upon request.

The outstanding features and performance of the “RFA/HP” dryer demonstrates once again that Stalam is the most innovative and far-sighted manufacturer of RF drying equipment for the textile industry worldwide.

 

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