High-Speed Roll-Up Door (High-Speed Rolling Door | for Warehousing/Cold Storage)
Mainly used at loading docks of drive-through rack warehouses, cold chain storage, and automated stereoscopic warehouses. It features rapid open/close, airtight sealing, automatic induction, and reduced cold air leakage, making it a standard energy-saving door for ammonia/CO2 refrigerant cold storage.
I. Core Parameters
1. Lifting speed: open 1.0-2.2m/s, close 0.6-1.0m/s; a 3m door opening fully opens in 2s, 20 times faster than a standard rolling door
2. Daily cycles: 800-1500 times; service life ≥1 million cycles
3. Operating temperature: standard -30°C to +70°C; insulated cold storage model available for -35°C deep-freeze (suitable for ammonia/CO2 low-temperature zones)
4. Standard opening: width 0.8-6m, height 2-7m; for oversized openings, use stacking high-speed doors (up to 12m×10m)
II. Three Main Types (for Warehouse/Cold Storage Selection)
1. PVC Zipper High-Speed Door (First Choice for Cold Chain Storage)
- Curtain: 1.2-2.5mm reinforced PVC; cold storage model features a polyurethane insulation layer (40-60mm) in the middle, low thermal conductivity, strong heat retention
- Structure: zipper interlocking track; auto-reset after impact derailment; resistant to frequent forklift collisions; full-perimeter brush + bottom airbag double sealing reduces cold air loss by 60%
- Applications: freezer storage (-18°C/-25°C) drive-through rack entrances, low-temperature sorting rooms, ammonia+CO2 cascade cold storage corridors
2. Standard Brush-Sealed PVC High-Speed Door (for Ambient Warehousing, Clean Workshops)
- Single-side brush sealing, single-layer PVC curtain; cost-effective, dust-proof and insect-proof; used in ambient raw material warehouses and sorting areas
- Not recommended for sub-zero cold storage; poor insulation, frost formation and cold air leakage
3. Rigid Turbine High-Speed Door (for Outdoor Loading Docks, High-Wind Warehouses)
- 40mm polyurethane foam-filled aluminum panels; wind-resistant up to level 12; weatherproof and frost-resistant for outdoor use; used at large logistics park docks with dock levelers
III. Drive and Intelligent Opening (Standard for Warehouse Automation)
1. Drive System
- Ambient: variable frequency brake motor; cold storage low-temperature: servo motor, smooth start/stop at low temperatures, precise positioning
- Standard manual crank for emergency opening during power outage
2. Opening Triggers (Optional as Needed)
- Magnetic loop: automatic opening when forklift passes over ground sensor (commonly used at cold storage docks)
- Radar sensor: long-distance detection of people/vehicles, contactless passage
- Optional: infrared light curtain, remote control, AB door interlock, AGV linkage, license plate recognition
IV. Key Configurations for Cold Storage High-Speed Doors (Compatible with R717 Ammonia/R744 CO2 Cold Storage)
1. Thickened insulated curtain: double-layer with PU insulation, K-value ≤0.45, blocks internal/external hot-cold air convection, significantly reduces unit power consumption
2. Low-temperature resistant components: anti-freeze sealing strips, low-temperature-specific motor, track heating wire (no ice formation or door jamming at -30°C)
3. Fully sealed structure: zipper + bottom inflatable airbag, prevents moisture and hot air from entering and causing frost, reduces evaporator defrosting energy consumption
V. Market Reference Price (for 3m×3m Standard Opening)
1. Standard single-layer brush PVC: RMB 7,500-11,000/set
2. Cold storage zipper insulated model: RMB 13,000-21,000/set (mainstream for cold chain)
3. Aluminum rigid high-speed door: RMB 26,000-36,000/set
VI. Warehouse Application Combinations
1. Drive-through dense rack cold storage: install zipper insulated high-speed doors at openings; rapid open/close for forklift passage, reducing cold loss, compatible with ammonia/CO2 refrigeration systems for energy saving
2. Ambient combined rack warehouse: standard PVC high-speed door for dust control and temperature regulation
3. Automated stereoscopic warehouse: servo high-speed door + AGV linkage, unmanned automatic open/close
