Spiral door EFA-SST® ISO-60

aluminiumfor cold storageindoor

Overview
The EFA-SST® ISO-60 is an insulated high-speed spiral door designed as the closing door for thermo-regulated zones. It combines spiral mechanics with double-walled EFA-THERM® laths and precision seals to minimize air and temperature exchange. Engineered for frequent cycles under strict insulation requirements, the door is suitable for cooling rooms and airline catering applications.

Key benefits & features

• Maximized thermal insulation with EFA-THERM® double-walled, thermally separated laths
• Components selected to withstand cold and high humidity
• High opening speed (up to 2.5 m/s) to reduce temperature exchange during frequent use
• Advanced safety options available (e.g. EFA-SCAN® laser scanner)

Use cases
Designed for transitions between temperature-controlled zones where maintaining constant temperatures is critical. Typical applications include industrial cold rooms, airline catering areas and thermo-regulated logistics facilities.

Additional technical & design details
The door integrates spiral mechanics with thermally separated aluminium profiles and low-wear vertical seals. The horizontal gap between the building connection and the door leaf is closed by an active aluminium lintel seal. For installations with large temperature differences or high humidity, vertical and lintel seals can be optionally equipped with heating bands to prevent freezing and ensure reliable sealing.

Technical specifications

• Insulation: EFA-THERM® double-walled, thermally separated laths
• k-value: up to 0.8 W/m²K
• Door leaf thickness: 60 mm
• Opening speed: up to 2.5 m/s
• Closing speed: up to 1.0 m/s
• Durability: up to 250,000 operating cycles per year
• Standard maximum dimensions: width up to 6,000 mm, height up to 6,000 mm
• Vertical sealing: thermally separated aluminium profiles with low-wear seals (optionally heated)
• Horizontal sealing: active aluminium lintel seal (optionally heated)
• Integrated safety systems available (e.g. EFA-SCAN®)