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Cold-chain insulated overhead door
Keyword:
Detailed Description
1. Product Overview
The cold-chain insulated overhead door features thickened insulation panels with high-density polyurethane filling, delivering excellent thermal insulation performance. The panel joints are sealed with weatherstripping to minimize cold‑air loss. Equipped with a reinforced bottom air seal and safety features that prevent dropping and provide automatic rebound upon obstruction, it is ideal for cold storage facilities, cold-chain warehouses, and low‑temperature processing workshops, effectively maintaining stable internal temperatures and reducing refrigeration energy consumption.
2. Product alias:
Cold storage insulated overhead door; cold chain sliding lift door; sectional cold storage lift door; low-temperature insulated sliding lift door; cold storage industrial lift door; cold chain warehouse insulated door; quick-freeze room–specific lift door; refrigerated storage insulated lift door; logistics cold storage sliding lift door; airtight insulated lift door
3. Cold-chain insulated overhead door
Project
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Standard Parameters (by Temperature Zone)
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Door panel structure
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Double-layer hot-dip galvanized color steel sheet, with high-density polyurethane foam injected as a single piece in the core, fluorine-free and environmentally friendly.
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Door panel thickness
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40/50mm/75mm/100mm;
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Foam density
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45–48 kg/m³, thermal conductivity ≤ 0.023 W/(m·K), overall heat transfer coefficient K ≤ 0.4 W/(m²·K)
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Sealing system
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All‑round EPDM rubber strip with a bottom airbag seal, providing triple airtightness to prevent cold loss and frost buildup.
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Temperature resistance range
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Compatible with cold storage facilities across the full temperature range of 0°C to -40°C.
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Drive motor
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Low-temperature‑specific heating motor, 0.75–1.5 kW, available in 220 V or 380 V;
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Opening and closing speed
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0.15–0.3 m/s, slow and steady, reducing thermal convection.
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Wind resistance rating
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Wind pressure of 8–10 on the Beaufort scale, equivalent to 800 Pa; suitable for coastal and open logistics parks.
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Security Configuration
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Bottom airbag collision protection, wire‑break prevention, and manual release mechanism
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Operating noise
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≤55 dB, low noise that does not interfere with warehouse operations
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Optional Accessories
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Observation window, geomagnetic induction, radar, and linked loading bridge
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4. Product Advantages
(1) Exceptional cold‑preservation and thermal insulation performance, minimizing refrigerant loss and achieving energy savings of over 30%.
(2) Multi‑seal design for freeze‑and‑condensation protection, ensuring stable, trouble‑free operation at low temperatures;
(3) The upgrade requires no additional land use, and large trucks and forklifts can pass through without obstruction.
(4) Complete set of freeze‑proof hardware, resistant to low temperatures and corrosion, suitable for environments down to –25°C;
(5) A comprehensive safety protection system, optimized for high-frequency logistics operations;
(6) Supports non-standard custom dimensions, viewing windows, small doors, and a variety of automatic opening solutions.
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Jibei Development Zone, Ji'nan City, Shandong Province
