The fabric is fed by a spreading and centring unit to the drying chamber, where it passes through a set of patented (Double-Polarity) Radio Frequency electrodes. The fabric conveying system is equipped with motorised rollers that prevent any tension of the fabric. The air circulating in the drying chamber comes from the RF generator cooling system (for heat recovery) and its temperature is suitably controlled. The water vapour released by the fabric is evacuated by an air extraction fan. A sophisticated moisture detection and control system at the exit adjusts automatically both the conveying speed and the RF power delivery in order to maintain the residual moisture content of the fabric as set by the operator, with an accuracy of +/-0.5%.
Stalam’s outstanding efforts in researching innovative drying technologies led to the development, in co-operation with a leading Italian manufacturer of finishing machines, of a revolutionary Radio Frequency dryer for fabrics.
The "RF/T" series dryer can be used not only as a stand-alone drying unit, but also in combination with existing (old or new) equipment like conventional tensionless dryers, relaxation dryers, stenters, thermosetting equipment, and many other finishing machines, especially in the woollen industry (e.g. decatising, pressing and steaming machines): the "RF/T" will increase the efficiency and throughput of existing equipment, in addition to improving the quality of the finished product in terms of dimensional stability, formability and shear rigidity.
high productivity within a small space
rapid process, it takes just a few seconds
the fabric gets dried under low temperature conditions (40-60°C)