Essential details
MOQ:1
Lead time:30天
Shipping:Express delivery
Product Introduction
The sectional door shown in the picture is officially known as an industrial sectional lifting door (industrial sectional overhead door). It consists of multi-section spliced door panels. Supported by tracks on both sides, the door panels slide upward along the inner tracks of the factory building when opened, without occupying external space in front of the doorway.
📌 Core Structure
1. Sectional Door Panels: Multi-section spliced structure with double-layer color steel plates filled with polyurethane foam in between. Common thicknesses are 40/50mm, featuring heat insulation, sound insulation and pinch-proof design.
2. Torsion Spring Balancing System: The long black component above the doorway in the picture is the torsion spring. It balances the weight of the door body and reduces the load on the motor.
3. Tracks & Rollers: Available in standard lift, high lift and vertical lift types to adapt to different ceiling heights of factory buildings.
4. Motor & Safety Accessories: Optional features include obstruction sensing reversal, infrared protection, anti-falling device, wicket door and observation window.
✨ Main Advantages
• ✅ Space-saving: Retracts upward without occupying space inside or outside the doorway, facilitating truck access;
• ✅ Thermal Insulation & Sealing: Polyurethane core plus perimeter sealing strips. Suitable for warehouses, cold chains and constant-temperature workshops to reduce energy consumption;
• ✅ Sturdy & Wind-resistant: High overall rigidity. Suitable for factory buildings with large door openings and better wind resistance than ordinary roller shutters;
• ✅ Durable & Low-noise: Smooth opening and closing, ideal for frequent operation in warehouses, logistics parks and workshops;
• ✅ Customizable: Optional wicket doors and glass windows; colors and doorway dimensions can be customized as required.
• ✅ Space-saving: Retracts upward without occupying space inside or outside the doorway, facilitating truck access;
• ✅ Thermal Insulation & Sealing: Polyurethane core plus perimeter sealing strips. Suitable for warehouses, cold chains and constant-temperature workshops to reduce energy consumption;
• ✅ Sturdy & Wind-resistant: High overall rigidity. Suitable for factory buildings with large door openings and better wind resistance than ordinary roller shutters;
• ✅ Durable & Low-noise: Smooth opening and closing, ideal for frequent operation in warehouses, logistics parks and workshops;
• ✅ Customizable: Optional wicket doors and glass windows; colors and doorway dimensions can be customized as required.
🏭 Application Scenarios
Logistics warehouses, factory workshops, loading and unloading docks, cold chain warehouses, automobile 4S stores, fire garages and exterior doors for large factory buildings.
Logistics warehouses, factory workshops, loading and unloading docks, cold chain warehouses, automobile 4S stores, fire garages and exterior doors for large factory buildings.
