Product Name: Inflatable Dock Shelter

 Inflatable Dock Shelter (Airbag Dock Seal | Standard for Cold Room Loading Docks, Used in Sets with Insulated High-Speed Doors and Dock Levelers)

 I. Working Principle

When the truck backs into the dock and is in position, the rear of the truck does not compress the shelter. Start the 220V centrifugal fan, and the top and left/right three airbags quickly inflate (fully inflated in 15-40 seconds), flexibly wrapping the rear of the truck body and completely sealing the gap between the truck body and the door opening. After loading/unloading is complete, press one button to stop; the airbags automatically deflate and retract due to their own weight and pressure release.

Air Tightness Advantage: Sealing rate 98%+, the first choice for ammonia/CO₂ low-temperature cold rooms, reducing cold air leakage by 35%-45%, significantly lowering unit power consumption.

 II. Main Structure & Material Parameters

1. Airbag Fabric: 1050D polyester oxford fabric + double-sided PVC knife-coated coating, compounded with neoprene rubber, tear-resistant, low-temperature resistant from -35°C to +60°C, anti-freezing without hardening, service life of ≥50,000 inflation/deflation cycles.

2. Outer Frame: Galvanized square steel/aluminum alloy frame, with insulated color steel plates sealed on the outside to prevent condensation and cold air leakage from the frame.

3. Fan and Electrical Control: 220V industrial fan (air volume 800-1500 m³/h), optional linkage: one-button interlocking start/stop with insulated high-speed doors, dock levelers, and air curtains.

4. Extension Allowance: Side airbags extend up to 600mm, top airbag extends 900-1200mm, suitable for truck bodies with width/height differences within 1.2m; can seal trucks with tail lifts or deformed/uneven bodies.

 Standard Dimensions (Industry Common)

- Door opening clear width: 3400/3600mm; total height: 3300/3800/4900mm; airbag depth 800mm

 III. Three Main Types

1. Fully Inflatable Three-Side Airbag (Mainstream for Cold Rooms): Top and both sides fully inflate, ultimate air tightness, standard for -18°C freezers, food and pharmaceutical cold chain.

2. Top Inflatable + Side Mechanical Curtain Combination: Top airbag, side elastic curtains, cost-effective option, commonly used for 0°C cold storage.

3. Floor-to-Floor Fully Inflatable: Airbags extend all the way to the floor, sealing gaps at the chassis, specially designed for rainy outdoor docks and bulk cold chain warehouses.

 IV. Inflatable Dock Shelter VS Mechanical/Sponge Dock Shelters

 V. Applicable Scenarios and Complete Sets

 Standard Complete Set (Golden Trio for Cold Chain Docks)

Insulated high-speed door (external door) + hydraulic dock leveler + inflatable dock shelter, fully sealed during loading, combined with air curtain, zero air exchange between cold and hot.

Recommended for: Ammonia refrigeration/CO₂ refrigerant freezers, pre-cooked food factories, pharmaceutical cool storage, constant-temperature bonded warehouses.

For ordinary ambient temperature warehouses and fleets with uniform truck types, mechanical/sponge dock shelters are more cost-effective.

 VI. Optional Upgrades

1. Low-Temperature Version: Fan and airbags equipped with anti-freeze heat tracing tape, no freezing or blockage at -30°C.

2. Smart: Geomagnetic sensor automatic start/stop inflation, traffic light guidance system.

3. Rain Protection: Top rain/sun canopy, bottom water-blocking rubber lip.