The Hot Sale Warehouse Dock Automatic Sectional Industrial Steel Roller Shutter Overhead Garage Door is a premium entry solution designed for warehouses, logistics centers, and industrial facilities. Manufactured with heavy-duty steel, it provides exceptional strength, security, and long-term durability, ensuring reliable protection for goods and equipment.
Equipped with an advanced automatic motor system, the door operates smoothly and efficiently, enabling quick access and improved workflow at busy loading docks. Its sectional overhead design optimizes space utilization, while the roller shutter structure offers enhanced safety and ease of use.
This industrial steel overhead garage door is built to withstand harsh working conditions, offering excellent resistance to impact, weather, and daily wear. Ideal for businesses seeking a professional, high-performance door system, it combines security, efficiency, and practicality—making it a trusted choice for modern warehouse operations.
Model
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Industrial Overhead Sectional Garage Door
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Door Panel
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Galvanized Steel Plate
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Door Filler
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Polyurethane foaming
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Guide Rail
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Galvanized Steel,Noise Level <= 60db
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Door Panel Thickness
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40mm-80mm(optional)
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Operation Temperature
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From -40Degrees to 50 Degrees
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Drive Voltage
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220V 50HZ
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Components
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Motor, airbag, spring brake device, cable break device, pulleys, control box, brackets
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Technical Data
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Climbing Mode
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Standard Lifing, High Lifting, Vertical Lifing
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Door Configuration
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With Clear window or small sectional door or without window/door
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Door Panel Size
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Max 12000MM
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Opening Size
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Max 8000MM
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Heat Transfer
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K=0.4-0.5W/㎡K
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Opening Speed
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About 130mm/S
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Operation Counts
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Max 100times /24 hours
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Balance System
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External torsion spring balance system, the working life of the torsion spring reaches 400000-800000s working cycle
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Opening Type
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Button,rope control,remote control,Geomagnetic Control,Photocell Control, Radar Control
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Package: Wooden Box
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MOQ and Lead Time: 1 set,3 days
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Sectional doors open vertically, creating free space in front of and behind the door. The door sections are stored flat underneath the ceiling, vertically above the opening or along the roof. Industrial sectional door is a type of industrial door being widely applied to many factories and large buildings. Industrial sectional overhead door could be also used as garage sectional door. There are also commercial sectional overhead doors and residential sectional garage door.
Founded in 2001, Zonle Doors is one of China’s leading professional door suppliers, with four major production bases covering 900,000 square meters. As one of the first domestic manufacturers to implement fully automated production lines, we employ over 10,000 workers and have a dedicated R&D team of over 50 specialists. Our facilities boast 58 internationally advanced production lines, featuring automatic robotic arms, electronic saws, sliding table saws, engraving machines, automatic cutting machines, side hole machines, sanding machines, edge grinding machines, heat presses, spray booths, UV primer assembly lines, high-speed precision cutting machines, CNC laser cutting machines, and automatic multi-layer hot-press gluing machines, ensuring top-tier quality and efficiency.
In addition, we operate a state-of-the-art quality control laboratory equipped with drying boxes, universal tensile testers, photometers, moisture testers, hinge testers, and lock testers, guaranteeing the durability and reliability of our doors. With an annual production capacity of 8 million doors, we are committed to meeting global demand.
Our extensive product range includes garage doors, French doors, barn doors, sliding doors, folding doors, pivot doors, steel doors, wooden doors, wrought iron doors, fire doors, rolling doors, WPC doors, and aluminum glass doors—all compliant with international standards such as CE, CCCF, ISO9001, and ISO14001.
Beyond offering premium-quality doors at competitive prices, we provide comprehensive after-sales support through our professional overseas sales team. Zonle Doors products are exported to over 80 countries and regions, including Asia, the Middle East, South America, and Europe.
We warmly welcome you to Zonle Doors and look forward to building a long-term, win-win partnership with you!