Industrial Sectional Doors | CE & UL Certified Export Manufacturer, Full Customization of Industrial Doors for Factories & Cold Storage Worldwide

We are a professional export-grade manufacturer of industrial doors, offering integrated industrial door solutions for cold chain logistics, food & pharmaceutical factories, warehouses, hangars and fire protection projects worldwide.
Our main products include PVC high-speed doors, industrial sectional doors, fire roller shutters and insulated cold storage doors, matched with loading ramps and dock shelter systems.
All products have obtained international CE and UL certifications, complying with EU standards EN 12453 and EN 12445. Customization in full RAL color range is available. Goods can be shipped globally by sea, with complete English certification, installation and maintenance documents provided.

Core Features of Industrial Sectional Overhead Doors

Detailed Performance Introduction of Industrial Sectional Doors

## 1. High-efficiency Thermal Insulation and Energy Saving, Suitable for Global Low-temperature Warehousing
The door panels are filled with high-density polyurethane foam with a density of ≥40kg/m³ and a thermal conductivity of ≤0.025W/(m·K), delivering thermal insulation performance equivalent to a 15cm solid brick wall. EPDM rubber sealing strips are installed at panel joints and the bottom of the door to achieve excellent air tightness. 40/50/80mm thickened door panels are optional to meet the demands of low-temperature cold storage and constant-temperature clean workshops. North American standard thermal R-value is marked for convenient model selection by overseas engineers and design institutes.

## 2. Multi-mode Lifting Structure, Adaptable to Factory Buildings Worldwide
The door lifts vertically and is horizontally stored under the ceiling, occupying no space on both sides of the door opening. The track system supports three installation solutions: low-headroom lifting, high-lifting and standard vertical lifting. The construction plan can be adjusted according to overseas factory architectural drawings, suitable for renovation of old factories in Europe, America and Southeast Asia.

## 3. High-strength Anti-corrosion Structure for Coastal Salt-fog Overseas Working Conditions
The door panel adopts 0.4–0.6mm double-layer color steel plates, and can be upgraded to 304 stainless steel for high-humidity and coastal projects. The internal foam reinforcement enhances overall rigidity, ensuring stable lifting without shaking. All hardware including tracks, hinges and springs adopts hot-dip galvanizing treatment for rust and corrosion resistance, ideal for long-term service in rainy and high-salt-fog coastal areas overseas. The matched high-precision torsion spring balance system ensures smooth and impact-free door operation.

## 4. Complete International Safety Protection, Compliant with OSHA Acceptance Standards
- Torsion spring break protection: Instantly locks the door once the spring fails to eliminate falling risks.
- Steel cable break locking: Stops operation immediately if a single cable breaks to prevent door dropping.
- Bottom safety airbag: Automatically rebounds when encountering people or goods during closing; purely mechanical structure works even during power outages.
- External emergency stop button: Independently equipped at multiple positions, complying with ISO international installation standards.
- Optional photoelectric safety sensors and audible & visual warning lights enable overseas factories to pass safety inspections directly.

## 5. Multi-country Electrical Customization, Compatible with Overseas Automation Systems
Door colors can be customized arbitrarily per international RAL color charts. Lighting windows and ventilation louvers are optional. Multiple opening modes are available, including ground induction, microwave radar, wireless remote control and IoT remote control. Custom electrical systems for different export regions: 230V for EU, 480V for North America, 220V for Southeast Asia. Explosion-proof electrical components can be equipped for flammable and explosive workshops, and the doors can connect with overseas intelligent warehousing automation equipment.

Details

Vertical elevating

Bending in higher position

Bending in lower position

Upper slidinginclined bending

Relative position between glide wheel and the door can be precisely adjusted, which makes easier installation and ensures smooth operation of the door.	Uneven design between the doors has function of preventing hand from nipping, safer utilization.	Excellent balance system of industrial sliding door is the key technology; industrial door within 10m² can be easily opened without electricity.	Special industrial electrical machine with high performance is in even operation.	Door of door, which is convenient for people to be in and out, it is not necessary to open the whole door.

Description of Industrial Sectional / Overhead Door Features

Outstanding Thermal Insulation & Energy Saving
Door panels are filled with high-density polyurethane foam (density ≥40kg/m³) with a thermal conductivity of ≤0.025W/(m·K), delivering thermal insulation equivalent to a 15cm-thick brick wall. EPDM (Ethylene Propylene Diene Monomer) sealing strips are fitted at panel joints and the bottom edge to achieve excellent air tightness. 80mm-thick panels are optional to meet extreme temperature control requirements.
Vertical Lifting Design with Zero Side Space Occupation
Panels travel vertically along tracks and are stored horizontally beneath the ceiling after opening. No extra clearance is required on both sides of the door opening to maximize internal building space utilization. The track system supports multiple installation layouts including low-headroom, high-lift and full vertical lift configurations.
High-Strength Structure with Wind & Impact Resistance
Panels consist of double-layer color steel sheets (0.4mm–0.6mm thick; stainless steel is optional) with internal polyurethane foam reinforcement for enhanced overall rigidity. A torsion spring balancing system is precisely calibrated to match door weight for smooth lifting and lowering. All tracks and hardware are made of hot-dip galvanized steel for superior corrosion resistance and extended service life.
Multi-Layer Safety Protection
Torsion spring breakage protection: The anti-fall device locks the door instantly if a spring snaps.
Cable break safety device: The door halts immediately if either lifting cable fails.
Bottom safety airbag: The door automatically reverses upon contacting obstacles during closing.
Manual emergency release: Hand chain operation enables door lifting/lowering during power outages.
Flexible Customization to Match Architectural Styles
Customizable panel colors in full compliance with RAL color standards;
Optional transparent viewing windows for natural light intake or louvered ventilation grilles;
Multiple activation modes available, including remote control, ground loop sensor and motion radar;
Explosion-proof electrical components can be equipped as an option.

Core Features of Industrial Sectional Overhead Doors

Core Parameters

Complete Selection Guide for Industrial Doors

Application Scenarios & Solutions

Cold Chain Logistics Scenario
→ Recommended Package: Insulated Cold Storage Door + PVC High-Speed Door + Loading Dock Leveler + Dock Seal System
This integrated solution delivers full-chain temperature control and airtight sealing covering the entire passage from loading bays to internal warehouse zones.
Food & Pharmaceutical Cleanroom Scenario
→ Recommended Package: Zipper-Type PVC High-Speed Door + Pneumatic Safety Bottom Edge + Photoelectric Safety Light Curtain
It meets cleanroom classification standards while ensuring high throughput efficiency and personnel safety.
Factory Fire Protection Scenario
→ Recommended Package: Fire Resistant Roller Shutter Door + Fire Alarm Interlock Control System
The system automatically forms fire barriers in case of fire outbreaks and fully complies with official fire inspection codes.

Core Function Comparison Table for Product Selection

Client Case Studies