Choose the wrong high speed door construction and the mistake repeats every shift on the floor. A soft curtain bellies out of its tracks on a windy dock. A freezer door ices solid at -25°C. The fix is a better match: pairing one of the main types of high speed doors with the opening’s wind, temperature, hygiene and impact conditions. This guide sets out the eight constructions we quote most often, the numbers that separate them, and where each one belongs.
At our factory we manufacture every construction below on a single line in an 11,000 m² plant in Renqiu, Hebei. We build each door to the opening rather than to a catalogue size. Logistics, food, pharma, cold chain and automation buyers ask for different things from the same category, and the differences show up long before the warranty does.
What Counts as a High Speed Door?
A high speed door is a power-operated industrial door that opens at roughly 0.8 m/s or faster, so forklifts pass through before conditioned air escapes. Flexible PVC rapid doors typically open at 0.8 to 1.5 m/s, and leading manufacturers rate premium servo-driven models up to 2.5 to 3.0 m/s. Rigid spiral doors run slower, around 0.6 to 1.0 m/s, because aluminum panels weigh more than fabric curtains.
Closing speeds are set lower, usually 0.5 to 1.0 m/s, for safety. Cycle life depends on the drive system and duty class, from six figures on entry-level drives to more than 1,000,000 cycles on premium servo systems. In Europe the governing product standard is EN 13241, which sets requirements for mechanical and powered-door safety, wind load resistance, thermal transmittance and air permeability. Safety forces are covered by EN 12453. Every door we ship passes a factory fatigue test before release, and we quote cycle-life expectations per drive class rather than as one blanket number.
When does the faster construction pay for itself? As a working rule, the more passages per hour an opening serves, the more a rapid cycle earns its keep. The same is true whenever the air on either side differs sharply in temperature or cleanliness. A door that cycles twice an hour rarely justifies a servo drive. A dock feeding trucks all day cannot justify a slow shutter.
The Main Types of High Speed Doors We Manufacture
The sections below cover the eight types we quote most often, based on real inquiries from logistics, food, pharma, cold chain and automation buyers.
1. PVC High Speed Roll-up Door: The Interior Workhorse
A 0.9 to 1.2 mm polyester-reinforced PVC curtain rolls up around a compact drum. It opens at 0.8 to 1.5 m/s, costs least per cycle, and suits interior partitions, food workshops and warehouse corridors. Clear vision panels are optional.
Pick this type when the opening is indoors and wind pressure is low. For exterior openings we steer buyers toward spiral or stacking doors instead. See our high speed PVC roll-up door for full specifications.
2. Zipper High Speed Door: Sealed and Self-Repairing
The curtain edges lock into zipper tracks, so the door seals tightly against dust, drafts and insects. After a forklift impact the curtain pops out of the track and re-feeds itself on the next cycle, which cuts repair downtime.
Typical opening speed is 1.0 to 2.0 m/s. We recommend zipper doors for food processing, packaging halls and cleanroom buffers.
3. Spiral (Turbo) Rigid High Speed Door: Speed Plus Security
Conventional soft-curtain high speed doors are fast but vulnerable: the fabric billows under wind load, the edges leak, and the curtain is the first part to wear. — RAX spiral high speed door product page
Double-skin 6063-T5 aluminum panels with a 40 to 50 mm PU foam core rise along a spiral track at 0.6 to 1.0 m/s. One door delivers rapid cycling, rigidity and insulation, so you do not need a separate security shutter behind it. Our spiral door is rated Wind Load Class 12 on RAX’s proprietary scale, where peer soft doors typically reach 8 to 10 on the same scale. This is our internal scale, separate from the EN 12424 Class 0 to 5 wind system. If your tender cites an EN class and design pressure, we build to it.
Construction details matter at this speed class. The double-skin panels run in self-supporting spiral tracks, so the door does not hang its weight on the curtain the way a soft roll-up does. Wind pressure transfers into the track system instead of billowing the fabric, which is why the same panel stays stable on coastal and exposed sites. The insulated core also quiets the cycle and damps the panel rattle that soft curtains develop over time. That is an advantage near office glazing, inspection benches or other noise-sensitive lines.
The 0.33 W/m²K figure is a marketing reference value for the insulated panel, not a door-set test result — treat it as a like-for-like comparison number between builds. Even at that conservative reading, the construction suits exterior docks and high-wind or coastal sites. Full data is on the spiral high speed door page.
4. Stacking (Fold-up) High Speed Door
The curtain folds and stacks vertically, carried by horizontal braces rather than by winding under itself. Because the fabric is supported along its width, the curtain holds shape and stays sealed on very wide openings. It also carries sustained wind pressure better than a plain roll-up, at 0.6 to 1.0 m/s. The trade-off is clear height: a stacked pack needs more headroom than a spiral door’s compact drum.
We specify stacking doors for large exterior passages, hangar-style openings and sites where a rigid door is not required but wind load is. On widths beyond a single spiral panel’s range, the folding curtain is often the only practical rapid option. Construction options are on the high speed stacking door page.
5. Cold Storage and Deep Freeze High Speed Doors
Cold chain doors use heated frames and tracks to stop ice build-up, plus low-temperature curtains and seals. Industry benchmarks: cooler doors for above 0°C, fold-up freezer doors rated 0°C to -25°C, and deep-freeze roll-up doors down to -30°C. We build cold storage doors for deep-freeze duty down to -30°C. Fast cycling matters here because each second the opening stands open, moist warm air enters and the compressors work harder.
Moisture is the real enemy below 0°C, not cold alone. Warm humid air that slips through a slow or leaky door deposits frost on frames, tracks and curtain edges until the door jams. Heated frames and tracks, low-temperature curtain material and tight zipper or brush sealing all attack the same problem from different sides.
6. Cleanroom High Speed Door and Airlock Logic
Cleanrooms are classified under ISO 14644-1: ISO Class 5 allows 3,520 particles per m³ at 0.5 µm, ISO 7 allows 352,000 and ISO 8 allows 3,520,000. GMP grades C and D roughly map to ISO 7 to 8. Zipper-sealed curtains, flush surfaces and interlocking with a second door (airlock logic) keep particle ingress down at 0.8 to 1.5 m/s.
Our cleanroom builds draw on the wider clean room door line: air-tight curtain systems, stainless steel hardware for washdown chemicals, and door interlocks wired as a two-door airlock. The interlock permits only one leaf open at a time, so the pressure cascade across the suite survives the traffic.
A cleanroom rapid door does not create cleanliness; it protects the pressure differential that the HVAC system has paid for. Specify the door after the room classification, never instead of it.
7. Machine Protection High Speed Door
These doors enclose robotic cells, laser cutters and welding stations. They interlock with the machine safety circuit, open only in a safe state, and cycle in step with production. Common equipment includes light curtains, safety-rated edges and position feedback to the cell PLC.
In a typical install the cell PLC holds the robot in a safe state whenever the curtain is moving. Weld spatter, laser scatter and fume stay inside the envelope. The goal is operator protection with zero added cycle time.
8. Explosion-Proof High Speed Door
Chemical, petrochemical and some pharmaceutical plants operate in ATEX hazardous zones where standard motors are not allowed. We fit Ex d IIB T4 explosion-proof motors and anti-static curtains on request, with the same sensing and safety suite as our standard rapid doors. If your site carries a zonation plan (Zone 1/21 or Zone 2/22), send it with the inquiry. The motor and curtain materials are then specified against the right zone.
Types of High Speed Doors Compared: Speed, Environment and Features
The table below shows typical opening speeds and best-fit environments for each type, based on industry data and our own product lines.
| Door Type | Typical Opening Speed | Best-Fit Environment | Standout Feature |
|---|---|---|---|
| PVC roll-up | 0.8–1.5 m/s | Interior logistics, food workshops | Lowest cost per cycle |
| Zipper (self-repairing) | 1.0–2.0 m/s | Food, packaging, cleanroom buffers | Sealed tracks, impact recovery |
| Spiral rigid | 0.6–1.0 m/s | Exterior docks, high-wind sites | Insulated aluminum panels, security |
| Stacking (fold-up) | 0.6–1.0 m/s | Wide exterior openings | Wind resistance at large widths |
| Cold storage / deep freeze | 0.8–1.5 m/s | Coolers to -30°C freezers | Heated frame, low-temp curtain |
| Cleanroom | 0.8–1.5 m/s | ISO 14644-1 Class 5–8 rooms | Air-tight curtain, door interlock |
| Machine protection | 0.6–1.2 m/s | Robotic cells, laser, welding | Safety interlock with machine PLC |
| Explosion-proof | 0.6–1.0 m/s | ATEX zones, chemical plants | Ex d IIB T4 motor, anti-static curtain |
Read the speeds as curtain-edge speeds at rated load, not as free-spinning motor figures. What shortens a truck waiting time is the share of the hour the opening stands closed. A 1.0 m/s door that seals tight every cycle often beats a nominally faster door left open between passes. Match the drive and the control logic to the traffic, then compare prices.
How to Choose the Right Type of High Speed Door
When a buyer sends us an inquiry, we ask for five engineering inputs:
- Opening size: width × height, plus available headroom and side room.
- Duty cycle: passages per day and traffic type. High forklift impact risk points to a zipper or breakaway curtain.
- Temperature range: anything below 0°C calls for a dedicated cold storage build with heated tracks.
- Wind load: exterior doors need an EN 12424 class (0–5) or a design pressure in Pa.
- Hygiene class: cleanroom ISO class or food-grade washdown requirements decide the sealing and surface finish.
If you remember one selection rule, let it be this. Interior and low wind → PVC roll-up; dust, sealing or impact → zipper; exterior with wind or security needs → spiral. Very wide exterior openings → stacking. Below 0°C → a dedicated cold storage build. Machine cells → machine protection with safety interlock.
- Send the five items above with site photos if available.
- We confirm the construction type and return a technical layout.
- You receive a proposal with price, lead time and shipping documents scope.
- Production starts after drawing approval, with a first-article confirmation sample.
Send these five items and we reply with a proposal and technical layout, normally within 24 hours. Standard lead times run 7 to 15 days for a sample door. A first order takes 20 to 35 days; a repeat order takes 15 to 20 days. You can browse all 21 models in our high speed door catalog. Every order ships with installation drawings, wiring diagrams and English manuals, so your local team can install without our engineers on site.
Every order ships with the documents a local crew needs. These include factory inspection reports covering speed and insulation resistance, a first-article confirmation sample with pre-assembly photos, CAD installation drawings, wiring diagrams and an English manual. Export packing uses steel frames, pearl-wool lining and stretch wrap, with shipping marks and traceable batch numbers on each crate.
The Right High Speed Door Type From One Factory
Most of the types of high speed doors above share one production line in our 11,000 m² plant, which keeps spare parts sourceable for years after delivery. We hold CE to EN 13241 and EN 12453, ISO 9001:2015, and SGS material reports. We accept a 1-unit minimum order in any size and any RAL color. Warranty runs 2 years on the door body, 3 years on the operator and 5 years on the servo motor.
If you are not sure which construction fits your opening, send us the site conditions and we will recommend the type that lasts longest there. Request a quote or read more about our factory on the About Us page.
High Speed Door Types: Questions and Answers
How many types of high speed doors are there?
The eight most quoted types are PVC roll-up, zipper (self-repairing), spiral rigid, stacking (fold-up), cold storage and deep freeze, cleanroom, machine protection, and explosion-proof. RAX Door manufactures all eight across 21 models in its high speed door line.
Which high speed door type is best for an exterior dock?
A spiral rigid door suits most exterior docks because its insulated aluminum panels hold wind load and provide security in one construction. For very wide openings where headroom allows, a stacking fold-up door is the alternative.
How fast should a high speed door open?
Flexible PVC doors typically open at 0.8 to 1.5 m/s; premium servo models reach 2.5 to 3.0 m/s. Rigid spiral doors run 0.6 to 1.0 m/s. Faster opening cuts the time conditioned air can escape.
How long does a high speed door last?
Cycle life depends on the drive class and duty: entry drives serve six-figure cycle counts, and premium servo systems are rated beyond 1,000,000 cycles. Match the drive class to daily passages before comparing prices.
