Sliding door EFA-STR® Flex

spiralaluminiumclass 4

Overview
The EFA-STR® Flex is a high-speed turbo roll-up door combining the flexibility of roll-up doors with the dimensional stability of spiral doors. The curtain is a PVC-coated polyester fabric reinforced by aluminium profiles and uses EFAFLEX spiral technology to achieve record opening speeds and reliable stability.

Main performance and benefits

• Extremely fast opening speed for efficient logistics operations.
• Flexible curtain with integrated aluminium profile reinforcements for stability at high speeds.
• Pivotable frame covers for simplified maintenance and quick access.
• Multiple product variants (Premium, Eco, Basic) and optional equipment packages for tailored applications.

Key features

• Flexible PVC-coated polyester fabric curtain with aluminium profile reinforcements spaced at approximately 225 mm.
• EFAFLEX spiral technology enabling high opening speeds while maintaining dimensional stability.
• Pivotable frame covers to facilitate maintenance; remote diagnosis supported via EFA-SmartAssist® on Premium and Eco variants.
• Safety features: EFA-TLG® door light grid standard on Premium and Eco (available for Basic as an option), integrated spring breakage detection, and a bolt lock in the rail to prevent unwanted movement during maintenance.
• Adaptability: standard straight endshield or slanted variant to compensate up to 200 mm on uneven floors; choice of rigid metal or flexible rubber endshield.
• Control options: different EFA-Tronic® control arrangements (wall-mounted or integrated into the spiral box); available EFA-Tronic® Light and EFA-Tronic® Professional control solutions.

Packages and special applications

• Cooling areas package: suitable for applications from -1 °C to -25 °C.
• Process package: designed for logistics and manufacturing processes.
• UL certification package: optional to meet Underwriters Laboratories safety and quality requirements.

EFA-STR® Flex at a glance

• Opening speed: up to 4.0 m/s.
• Closing speed: up to 1.0 m/s.
• Usable up to wind class 4.
• EFA-TLG® as standard for Premium and Eco variants.
• Premium version: up to 500,000 load cycles per year.
• Standard sizes: up to width = 4,500 mm and height = 5,100 mm.

Applications
Designed for fast vertical access in logistics, manufacturing and other industrial environments requiring high throughput, dimensional stability and configurable options for thermal or process-specific needs.

Technical specifications

• Model name: EFA-STR® Flex
• Door curtain material: PVC-coated polyester fabric
• Reinforcements: aluminium profiles (spacing approx. 225 mm)
• Opening speed: up to 4.0 m/s
• Closing speed: up to 1.0 m/s
• Wind rating: usable up to wind class 4
• Standard sizes: up to W = 4,500 mm, H = 5,100 mm
• Premium cycles: up to 500,000 load cycles per year (Premium version)
• Safety: EFA-TLG® door light grid (standard on Premium/Eco, optional for Basic); spring breakage detection; rail bolt lock
• Maintenance: pivotable frame covers for quick access; remote diagnosis supported with EFA-SmartAssist® (Premium/Eco)
• Endshield options: straight or slanted (compensates up to 200 mm); rigid metal or flexible rubber
• Optional packages: cooling areas (-1 °C to -25 °C), process package, UL certification package
• Control systems: EFA-Tronic® variants (wall-mounted or integrated in spiral box), EFA-Tronic® Light and Professional