Industrial Overhead Doors

Cronax Industrial Sectional Overhead Doors are engineered for strength, efficiency, and space optimization, making them the ideal solution for warehouses, factories, distribution centers, and automotive facilities. Built with insulated, high-strength panels and precision hardware, these doors ensure long-lasting durability and smooth operation, even under heavy-duty use. Unlike traditional shutters, sectional overhead doors open vertically and slide along the ceiling, maximizing available floor and wall space. This design provides unobstructed movement of vehicles, forklifts, and goods within the facility.

Made with double-skin insulated panels filled with polyurethane foam, these doors help maintain consistent indoor temperatures. They are ideal for cold storage, temperature controlled warehouses, and energy conscious operations. Available in different finishes, panel designs, vision panels, and access doors, these doors can be tailored to match operational requirements and architectural aesthetics.

ENGINEERING HIGHLIGHTS
SMART CONTROL SYSTEM
CUSTOMIZATION OPTIONS

Door Type	Industrial sectional overhead door with insulated panel construction, designed for high-performance operation in industrial and commercial facilities.
Primary Application	Warehouses, manufacturing units, logistics hubs, food processing plants, distribution centers, and heavy-duty commercial environments requiring durability and insulation.
Maximum Clear Opening	Up to 12,000 mm wide × 8,000 mm high; custom sizes available with reinforced tracks and hardware.
Panel Thickness	40 mm to 80 mm thick insulated sandwich panels with high-density polyurethane (PU) or polyisocyanurate (PIR) foam core.
Thermal Insulation	U-value as low as 0.35 W/m²·K depending on panel thickness; designed to minimise energy loss in temperature-controlled facilities.
Acoustic Insulation	Sound reduction index up to 25–30 dB depending on configuration.
Panel Construction	Double-skinned galvanised steel panels with finger-safe interlocking profile; exterior and interior faces coated for corrosion protection.
Wind Resistance	Complies with EN 12424 up to Class 4 (1440 Pa); suitable for high-wind and storm-prone areas.
Sealing System	EPDM rubber seals along panel joints, side guides, and bottom edge for superior airtightness and weather sealing.
Compliance & Standards	Designed and manufactured as per EN 13241, IS standards, and CE-certified quality and safety regulations.

Drive System	Electromechanical drive with chain or direct shaft-mounted operator; counterbalance spring system ensures smooth operation.
Power Supply	Standard 400/415 V, three-phase, 50 Hz; single-phase options available for smaller doors.
Control Panel	Digital control unit with soft start/stop, overload protection, and programmable logic for automation.
User Controls	Wall-mounted push-button station (Open/Stop/Close); optional key switch, radio remote, or mobile app operation.
Activation Devices	Compatible with induction loop detectors, motion sensors, RFID readers, and pull cords for hands-free operation.
Safety Systems	Anti-drop safety device, safety edge with auto-reverse, photocell sensors, and overload protection as standard.
Positioning	Limit switches or encoder-based positioning system for precise travel and repeatable performance.
Emergency & Backup	Manual chain hoist or crank handle for operation during power failure; optional UPS backup for critical applications.
Integration	Seamlessly integrates with dock levelers, vehicle restraints, fire alarms, and building management systems (BMS).

Panel Finish	Standard polyester-coated galvanised steel in RAL 9002 (grey white) or RAL 7016 (anthracite grey); corrosion-resistant and easy to maintain.
Optional Finish	Powder-coated or PVDF finishes in full RAL range; stainless steel skins available for hygiene-sensitive areas.
Vision Panels	Double-glazed acrylic or polycarbonate windows for natural light and visibility; available in rectangular or oval designs.
Insulation Options	Panel thickness selectable between 40, 60, or 80 mm based on required thermal and acoustic performance.
Sealing Packages	Full perimeter sealing with flexible EPDM rubber gaskets; advanced thermal break profiles for deep-freeze facilities.
Branding	Option for company logo printing or custom colour-matched panels to align with corporate branding.
Accessories	Optional wicket (pedestrian) doors, emergency egress doors, ventilation grilles, top/bottom draft seals, and canopy enclosures.