“TCRF” dryers for the drying of yarn packages and tops in bump or bobbin form by a combination of RF and forced air circulation

The “TCRF” (Thermo-Controlled Radio Frequency) model dryers represent the outcome of the researches carried out by Stalam in co-operation with Messrs. Loris Bellini as to the drying of yarn packages and tops in bobbin or bump form by means of a combination of RF energy and forced air circulation. They can surely be considered as the most sophisticated batch-type textile dryers available worldwide.

In the “TCRF” dryers a passing-through, inverter-controlled air flow makes it possible to control the product’s internal temperature as desired while the RF energy is applied. The air is recovered from the RF generator cooling system and can be additionally heated up by a steam-fed heat exchanger up to about 90Â°C. An automatic weighing system stops the drying cycle automatically when the desired final weight has been reached. All working parameters and dryer operations are set and automatically controlled through the PLC.

“TCRF” dryers with 1 or 2 trolleys specifically designed for yarn packages, and a dryer model with 2 trolleys suitable for both tops and packages, are available.

Thanks to the accurate drying temperature control, the “TCRF” dryers are particularly suitable for all products whose quality parameters are negatively affected by prolonged thermal treatments or by temperatures above a certain limit, such as bleached and pastel-shade wool or cotton/acrylic blends, direct dyed cotton and viscose yarns, etc.

Technology : air blast, radio frequency
Batch/continuous : batch
Applications : for the textile industry
Other characteristics : with temperature control