Sliding door EFA-SST® Therm

spiralmetalfor cold storage

Product overview
The EFA-SST® Therm is a high-speed spiral door with thermally separated EFA-THERM® insulation laths as standard. Designed to minimise heat and cold losses, it achieves U-values up to 1.4 W/m²K. The door is modular and available in Premium, Eco and Basic variants with configurable options.

Key features at a glance

• Max. thermal insulation with EFA-THERM® insulation laths
• Opening speed: up to 2.5 m/s
• Closing speed: up to 1.0 m/s
• Usable up to wind class 4
• EFA-TLG® door light grid standard for Premium and Eco
• U-value: up to 1.4 W/m²K
• Premium: up to 500,000 operating cycles p.a.
• Standard sizes up to W = 5,000 mm, H = 5,100 mm

Excellent insulation
Thermally separated EFA-THERM® insulation laths are fitted as standard to reduce thermal bridging and minimise heat or cold losses. This enables improved temperature control for conditioned areas.

Pivotable frame cover
Pivotable frame covers provide quick access for maintenance and service. Combined with EFA-SmartAssist® remote diagnostics are possible. For Eco and Basic variants the pivotable cover is available as an option.

Safety features
Premium and Eco variants include the EFA-TLG® door light grid as standard; it is available as an option for Basic. Spring breakage detection is integrated in the frames and a bolt lock secures the door during maintenance to prevent unintended movement.

Flexibly adaptable
Endshield options include a straight or slanted variant to allow flush closure on uneven floors and compensate differences up to 200 mm. Endshields are available in rigid metal or flexible rubber versions.

Control
EFA-Tronic® controls can be installed wall-mounted or integrated into the spiral box. EFA-Tronic® Light and EFA-Tronic® Professional offer control solutions to match site requirements.

Optional packages

• Cooling areas package: suitable for -1 °C to -25 °C
• Process package: for logistics and manufacturing applications
• Security 1: mechanical locking, integrable into alarm systems
• Security 2: automatic locking, integrable into alarm systems
• UL certification package: Underwriters Laboratories certification

Characteristics / technical specifications

• Model: EFA-SST® Therm
• Insulation: EFA-THERM® thermally separated insulation laths (standard)
• U-value: up to 1.4 W/m²K
• Opening speed: up to 2.5 m/s
• Closing speed: up to 1.0 m/s
• Wind rating: usable up to wind class 4
• Standard clear opening sizes: up to W = 5,000 mm, H = 5,100 mm
• Operating cycles (Premium): up to 500,000 cycles p.a.
• Door light grid: EFA-TLG® standard for Premium and Eco; optional for Basic
• Safety: spring breakage detection integrated; bolt lock for maintenance safety
• Endshield variants: straight or slanted (compensates up to 200 mm); materials: rigid metal or flexible rubber
• Control: EFA-Tronic® options (wall-mounted or integrated in spiral box); EFA-Tronic® Light / Professional available
• Optional packages: cooling areas (-1 °C to -25 °C), process package, Security 1 & 2, UL certification package