Metallic Spiral Doors

Cronax Metallic Spiral Doors are the perfect blend of strength, speed, and modern aesthetics, engineered for industries and commercial spaces that demand high performance with a premium appearance. Unlike conventional shutters, these doors use a rigid aluminum slat curtain that coils into a non-contact spiral track system, ensuring smooth, fast, and quiet operation without friction or wear.

Cronax Spiral Doors deliver exceptional durability, wind resistance, and enhanced security. Their rigid construction makes them ideal for protecting high-value assets in warehouses, automotive showrooms, airports, and industrial facilities. Cronax Spiral Doors combine industrial toughness with architectural appeal. Available with vision panels, glazed slats, or perforated designs, they create a sleek, modern facade suitable for commercial buildings, logistics hubs, and high-end facilities.

ENGINEERING HIGHLIGHTS
SMART CONTROL SYSTEM
CUSTOMIZATION OPTIONS

Door Type	High-speed metallic spiral (coil-up) overhead door with interlocking rigid slats for fast, secure, and architecturally sleek performance.
Applications	Ideal for high-traffic zones requiring high security and aesthetics—such as commercial fronts, logistics hubs, parking, automotive dealership entrances, and industrial access points.
Opening Speed	Variable program speeds up to approximately 2.5 m/s (100 in/s) for rapid throughput and minimal exposure time to external conditions.
Closing Speed	Controlled descent at up to ~0.5 m/s to ensure safe and predictable operation.
Maximum Dimensions	Up to ~6,000 mm wide × 6,000 mm high for standard models, with larger custom-engineered sizes available on request.
Wind & Thermal Performance	Slat design capable of wind resistance up to Class 4 per EN 12424, and thermal transmittance around 1.4 W/m²K (EN 12428).
Leaf Construction	Double-skinned aluminum slats (approx. 40 mm thick) with polyurethane foam core—delivering high security, rigidity, and thermal benefit.
Track & Rolling Mechanism	Compact spiral guiding system that rolls the curtain upward within guides—minimizing shaft space and avoiding wear from metal-to-metal contact.

Power & Drive	Standard 230 V single-phase (small doors); three-phase options for larger units, paired with variable-frequency drive (VFD) or AC drive for fine speed control.
Control Modes	Open / Stop / Close push-button as standard; optional wave-sensor, pull-cord switch, key-switch, or remote activation for flexible access.
Safety Features	Highly secure systems include wireless bottom safety edges, light curtains or light grids, and mechanical brake-release for emergency manual operation.
Control Panel Protection	Operator housings rated at IP55 and control boxes at IP65 for robust protection in industrial environments.
Additional Activations	Optional radar motion sensors, induction/magnetic loops, interlocking with adjacent doors, traffic lights, and audio-visual alerts for enhanced site coordination.

Color & Surface Finish	Pre-assembled double-wall aluminum slats with sleek anodized finish; powder-coat in architect-specified RAL or metallic tones available.
Vision & Ventilation	Optional full or partial polycarbonate/translucent panels (Prime Metallic Vista) or perforated ventilated slats for visibility and airflow.
Security & Insulation	Choice of dense-profile slats with foam fill for thermal performance and security, or clear panels where transparency is needed.
Guides & Structure	Anodized aluminum guides and galvanized steel support structure for strength, low maintenance, and corrosion resistance.
Branding & Aesthetics	Clean minimalist facades with metallic finishes and optional custom graphics, logos or safety stripes to align with facility design standards.