Radio frequency dryer TCRF series

hot airdry airbatch

Overview
The TCRF (Thermo-Controlled Radio Frequency) dryers combine radio-frequency energy with forced air circulation to control internal product temperature during batch drying of yarn packages and tops. They are designed to minimise thermal damage to heat-sensitive fibres while maintaining consistent drying results.

Operation
An inverter-controlled through-flow air system regulates the product's internal temperature while RF energy is applied. Drying air is recovered from the RF generator cooling circuit and can be reheated by a steam-fed heat exchanger up to approximately 90°C. An automatic weighing system stops the drying cycle when the target final weight is reached. All process parameters and dryer operations are set and managed via PLC.

Available configurations

• 1-trolley models dedicated to yarn packages
• 2-trolley models dedicated to yarn packages
• 2-trolley models suitable for both tops and packages

Applications
Particularly suitable for products sensitive to prolonged thermal exposure or temperatures above a defined limit, such as bleached and pastel-shade wool, cotton/acrylic blends, direct-dyed cotton, and viscose yarns.

Benefits

• Precise control of drying temperature by combining RF energy and inverter-regulated airflow
• Energy savings up to 25% compared with standard RF-only technology
• Reduced labour and easier loading/unloading; predisposed for integration in automated, robotised dyeing plants

Technical specifications

• Technology: Thermo-Controlled Radio Frequency (TCRF)
• Energy: RF energy combined with forced air circulation
• Airflow control: inverter-controlled through-flow for internal temperature regulation
• Air recovery: from RF generator cooling system
• Additional heating: steam-fed heat exchanger (air up to approx. 90°C)
• Automation: PLC-controlled operation
• Weighing system: automatic weighing to stop cycle at target weight
• Configurations: 1 or 2 trolleys; 2-trolley versions for tops and packages
• Suitable for: heat-sensitive fibres and delicate blends
• Energy efficiency: up to 25% electricity savings vs standard RF
• Integration: designed for integration into fully automated dyeing lines with robotised handling