Radio frequency dryer RF/T

continuousfor the textile industryfabric

Overview
The fabric is fed by a spreading and centring unit into the drying chamber, where it passes through a set of patented Double-Polarity radio-frequency (RF) electrodes. The conveying system uses motorised rollers that eliminate fabric tension. Process air is drawn from the RF generator cooling circuit for heat recovery and its temperature is accurately controlled.

Moisture management and drying control
Water vapour released by the fabric is evacuated by an extraction fan. An on-line moisture detection system at the dryer exit automatically adjusts both conveying speed and RF power delivery to maintain the operator-set residual moisture target with an accuracy of ±0.5%.

Main features

• Spreading and centring unit for controlled fabric feed
• Patented Double-Polarity RF electrode system for tensionless drying
• Motorised rollers preventing fabric tension during conveyance
• Air circulation from RF generator cooling system with heat recovery and controlled temperature
• Extraction fan for efficient vapour evacuation
• Automatic exit moisture detection that adjusts conveying speed and RF power
• Modular design for integration with existing finishing lines
• Low process temperature (typ. 40–60 °C) and very short cycle times (seconds) even on heavy fabrics

Technical specifications

• Drying technology: Double-Polarity Radio Frequency (RF) electrodes
• Fabric handling: spreading and centring unit; motorised rollers for tensionless conveying
• Air handling: process air from RF generator cooling system (heat recovery) and extraction fan for vapour evacuation
• Moisture control: on-line exit moisture detection with automatic adjustment of conveying speed and RF power
• Residual moisture control accuracy: ±0.5%
• Typical process temperature: 40–60 °C
• Drying time: very short (seconds), depending on fabric type and thickness
• Design: modular for easy integration with relaxation dryers, tenter frames, curing machines and other finishing equipment
• Typical applications: wool and textile finishing lines requiring tensionless drying and precise moisture control