High-speed roll-up doors for coolers and freezers.
High-speed fabric roll-up doors for cooler and freezer openings that cycle all shift and cannot afford to stand open. Freezer-rated configurations, supplied in Ohio and outside it.
Installed by our crews, or supplied material-only to the contractor on the job.
Why speed matters on a cold opening.
Every second a cold room is open is load on the system. On a busy dock, a slow door can be the largest single load there is.
A high-speed door opens fast and closes slower, on purpose. The curtain has a soft bottom edge and no rigid beam, safety eyes watch the opening, and the motor senses load and reverses if the curtain comes down on something. Struck hard, the curtain releases from its guide and resets itself on the next cycle.
What to plan around it.
Insulation
A 6-inch solid freezer door is about R-48. A high-speed door is two layers of fabric.
Shutdowns
For holidays and long closures, we recommend a manual swing or slide door in the same opening.
Heavy tow-motor traffic
Where forklifts run through an opening all day, a heated air vestibule does the job with no door in the way. It is expensive, and it works.
Wash-down rooms
Stainless side frames, header, covers and control enclosure for rooms cleaned every shift.
High-speed fabric roll-up: the specification.
A reinforced PVC curtain with a soft weighted bottom edge, running in a self-lubricating track on galvanized or stainless side frames. There is no rigid bottom beam and no metal inside the curtain, which is what makes it both safe to be hit by and cheap to recover from: struck hard, the curtain releases from the side guide and resets itself on the next cycle instead of tearing.
- Maximum size
- 26 by 26 ft
- Opening speed
- Up to 100 in. per second, depending on door size
- Closing speed
- 32 in. per second
- Curtain
- Reinforced PVC, lacquered both sides, .035 in. at 35 oz per square yard
- Power
- 208, 230 or 460 V AC, three phase, 60 Hz. Circuit breakers by others
- Drive
- Inverter drive control with encoder limit positioning; 2 HP IP 54 motor with the encoder on the drum shaft
- Detection
- Infrared photocell inside the side guide for a pedestrian or vehicle, plus a bottom-edge detector that reverses the door on an obstruction
- Rated cycles
- 1,000,000 performance cycles to EN 12604
- Wind load
- EN 12424 class 4 at 118 by 118 in., class 3 at 197 by 197 in., class 2 at 276 by 197 in., class 1 at 315 by 315 in.
The specification sheet covers ambient through cooler service. Freezer-rated configurations exist and are specified separately — ask for the room's design temperature first, not the door size.
The curtain, with its test standards
- Coating
- PVC, lacquered both sides
- Base fabric
- Polyester, 1100 dtex, P2/2 weave
- Total weight
- 35 / 38 oz per sq yd · DIN EN ISO 2286-2
- Tensile strength, warp / weft
- 491 / 457 lb per in. · DIN EN ISO 1421/V1
- Tear strength, warp / weft
- 112 / 112 lb · DIN 53363
- Adhesion
- 11.4 lb per in.
- Cold resistance
- -40°F · DIN EN 1876-1
- High temperature
- 158°F
- Flame spread
- Under 3.94 in. per minute · ISO 3795
- Light fastness
- Greater than 6 · DIN EN ISO 105 B02
- Crack resistance
- No cracks at 100,000 cycles · DIN 53359 A
Construction and performance figures are the manufacturer's published data for these assemblies. We confirm them against current product data on every job before anything is ordered.
Start with the cycle count.
How often the opening cycles, the room's design temperature and what goes through it decide the door. The size comes after.
Questions buyers ask
Are high-speed roll-up doors available for freezers?
Yes. Freezer-rated configurations exist and are specified separately from cooler doors, with heated side frames. We start from the room's design temperature.
Does a high-speed door replace a solid freezer door?
Not for insulation. A 6-inch solid freezer door is about R-48; a high-speed door is two layers of fabric. On a freezer we recommend a manual swing or slide door in the same opening for holiday shutdowns.
What happens when a forklift hits a high-speed door?
The curtain has a soft bottom edge and no rigid beam. Struck hard, it releases from the side guide and resets itself on the next cycle rather than tearing. The motor also senses load and reverses if the curtain closes on something.
Is there an alternative to a door on a busy freezer opening?
A heated air vestibule, where tow-motor traffic is heavy. It is expensive and effective.
How big can a high-speed fabric door be?
The door family we specify runs up to 26 by 26 feet. Larger or unusual openings are a conversation with us before anything is quoted.
Do you supply high-speed doors outside Ohio?
Yes. We supply them outside Ohio as well as here. Call and describe the job.
Related: bi-parting freezer doors, stainless steel doors and insulated panels and doors.
Describe the opening and the traffic.
Opening size, room temperature and roughly how many times an hour the door opens.
(216) 631-8080Monday – Friday, 8:00 AM – 4:00 PM. 3195 West 63rd Street, Cleveland, OH 44102.
Related figures, projects and articles from D.W. Ross.