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Mechanical door cover

Name: Mechanical door cover
Brand: High-Speed Doors | Loading Dock | Industrial Doors | Segmented lifting Doors |
Availability: InStock

Bongtai door seals are sealing devices used between platforms and freight cars, available in three types: sponge‑based, mechanical (door‑cover), and inflatable. Among these, mechanical door seals offer stable performance and broad applicability. Their main structure features an aluminum alloy variable‑rhombus design supported by steel frames; the curtain fabric is wear‑resistant and corrosion‑proof, ensuring excellent sealing, safety, and environmental friendliness. Customization is available, and with our own manufacturing facility, we provide fast delivery and extensive export experience.

Category:

Door Seal Series

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Keyword:

Door Seal Series

Detailed Description

1. Product Overview

Mechanical door seals (mechanical door curtains) are specialized sealing devices designed for logistics loading docks. Featuring a fully mechanical, elastic aluminum alloy frame supported by structural steel, they require no electrical components. Once a truck is docked, the seal automatically conforms to the vehicle’s body, effectively blocking wind, rain, insects, and the escape of hot or cold air. They are wear‑resistant, impact‑proof, and compatible with a wide range of truck models, making them suitable for warehouses, cold‑chain facilities, and industrial plants. Custom non‑standard sizes are also available.

2. Product Alias

Mechanical door seal; mechanical door cover; telescopic curtain-type door seal; platform door seal; loading/unloading door seal; truck sealing door cover; door cover;

3. Technical Specifications of the Mechanical Door Cover

Parameter Item	Specifications and Parameters
Standard overall width	3100mm/3400mm, supports non-standard customization from 3000 to 3800mm.
Standard overall height	3100mm/3500mm, with custom height options available upon request.
Door seal depth specification	600 mm, compatible with the buffer clearance distance for truck docking.
Top Seal Curtain Specifications	1000 mm, double-layer thickened structure, supports non-standard customization.
Side Seal Curtain Specifications	600 mm, with built-in warning reflective strips
Main frame material	Hot-dip galvanized steel frame with aluminum alloy front and rear frames; rust- and corrosion-resistant, impact‑proof.
Main material of the sealing curtain body	Double-layer PVC-coated polyester fabric, tear-resistant and abrasion-resistant.
Weather-resistant temperature range	-35℃ to 90℃, suitable for high- and low-temperature operating environments
Rebound Structure Configuration	High-strength reset spring; automatically rebounds after a vehicle collision without deformation.
Cord fabric tensile strength	Longitudinal: 7,000 N/5 cm; Transverse: 5,000 N/5 cm
Standard factory accessories	Parking guidance reflective strip, complete set of mounting hardware
Optional Custom Configurations	Bottom sealing gasket, widened side curtains, and thickened wear-resistant canvas
Compatible Vehicle Models	Standard box trucks, semi-trailers, and refrigerated transport vehicles
Core Use Cases	Warehousing and logistics loading docks, cold-chain warehouses, and factory loading/unloading areas