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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\u00b0C. The fix is a better match: pairing one of the main types of high speed doors<\/span> 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.<\/p>\n

At our factory we manufacture every construction below on a single line in an 11,000 m\u00b2 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.<\/p>\n

What Counts as a High Speed Door?<\/h2>\n

A high speed door is a power-operated industrial door that opens at roughly 0.8 m\/s or faster<\/strong>, so forklifts pass through before conditioned air escapes. Flexible PVC rapid doors typically open at 0.8 to 1.5 m\/s<\/strong>, 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<\/strong>, because aluminum panels weigh more than fabric curtains.<\/p>\n

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<\/strong>, which sets requirements for mechanical and powered-door safety, wind load resistance, thermal transmittance and air permeability. Safety forces are covered by EN 12453<\/strong>. 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.<\/p>\n

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.<\/p>\n

The Main Types of High Speed Doors We Manufacture<\/h2>\n

The sections below cover the eight types we quote most often, based on real inquiries from logistics, food, pharma, cold chain and automation buyers.<\/p>\n

1. PVC High Speed Roll-up Door: The Interior Workhorse<\/h2>\n

A 0.9 to 1.2 mm polyester-reinforced PVC curtain<\/strong> 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.<\/p>\n

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<\/a> for full specifications.<\/p>\n

\n\"PVC
Interior workhorse: a reinforced PVC curtain on a compact drum, here at a warehouse logistics passage.<\/figcaption><\/figure>\n

2. Zipper High Speed Door: Sealed and Self-Repairing<\/h2>\n

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.<\/p>\n

Typical opening speed is 1.0 to 2.0 m\/s<\/strong>. We recommend zipper doors<\/a> for food processing, packaging halls and cleanroom buffers.<\/p>\n

\n\"Zipper
Zipper tracks seal the curtain edge and let it re-feed itself after an impact.<\/figcaption><\/figure>\n

3. Spiral (Turbo) Rigid High Speed Door: Speed Plus Security<\/h2>\n

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. \u2014 RAX spiral high speed door product page<\/p><\/blockquote>\n

Double-skin 6063-T5 aluminum panels with a 40 to 50 mm PU foam core<\/strong> 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.<\/p>\n

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.<\/p>\n

The 0.33 W\/m\u00b2K<\/strong> figure is a marketing reference value for the insulated panel, not a door-set test result \u2014 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<\/a> page.<\/p>\n

\n\"Spiral
Rigid spiral door: insulated aluminum panels on a spiral track for exterior, wind-exposed openings.<\/figcaption><\/figure>\n

4. Stacking (Fold-up) High Speed Door<\/h2>\n

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.<\/p>\n

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<\/a> page.<\/p>\n

5. Cold Storage and Deep Freeze High Speed Doors<\/h2>\n

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\u00b0C, fold-up freezer doors rated 0\u00b0C to -25\u00b0C<\/strong>, and deep-freeze roll-up doors down to -30\u00b0C<\/strong>. We build cold storage doors for deep-freeze duty down to -30\u00b0C. Fast cycling matters here because each second the opening stands open, moist warm air enters and the compressors work harder.<\/p>\n

Moisture is the real enemy below 0\u00b0C, 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.<\/p>\n

\n\"Cold
Deep-freeze build: heated frame and tracks keep the door moving below 0\u00b0C.<\/figcaption><\/figure>\n

6. Cleanroom High Speed Door and Airlock Logic<\/h2>\n

Cleanrooms are classified under ISO 14644-1<\/strong>: ISO Class 5 allows 3,520 particles per m\u00b3 at 0.5 \u00b5m, 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.<\/p>\n

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.<\/p>\n

\n

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.<\/p>\n<\/div>\n

7. Machine Protection High Speed Door<\/h2>\n

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.<\/p>\n

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.<\/p>\n

\n\"Machine
Cell enclosure: the door interlocks with the safety circuit so the robot only cycles behind a closed curtain.<\/figcaption><\/figure>\n

8. Explosion-Proof High Speed Door<\/h2>\n

Chemical, petrochemical and some pharmaceutical plants operate in ATEX hazardous zones where standard motors are not allowed. We fit Ex d IIB T4<\/strong> 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.<\/p>\n

Types of High Speed Doors Compared: Speed, Environment and Features<\/h2>\n

The table below shows typical opening speeds and best-fit environments for each type, based on industry data and our own product lines.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
Door Type<\/th>\nTypical Opening Speed<\/th>\nBest-Fit Environment<\/th>\nStandout Feature<\/th>\n<\/tr>\n<\/thead>\n
PVC roll-up<\/td>\n0.8\u20131.5 m\/s<\/td>\nInterior logistics, food workshops<\/td>\nLowest cost per cycle<\/td>\n<\/tr>\n
Zipper (self-repairing)<\/td>\n1.0\u20132.0 m\/s<\/td>\nFood, packaging, cleanroom buffers<\/td>\nSealed tracks, impact recovery<\/td>\n<\/tr>\n
Spiral rigid<\/td>\n0.6\u20131.0 m\/s<\/td>\nExterior docks, high-wind sites<\/td>\nInsulated aluminum panels, security<\/td>\n<\/tr>\n
Stacking (fold-up)<\/td>\n0.6\u20131.0 m\/s<\/td>\nWide exterior openings<\/td>\nWind resistance at large widths<\/td>\n<\/tr>\n
Cold storage \/ deep freeze<\/td>\n0.8\u20131.5 m\/s<\/td>\nCoolers to -30\u00b0C freezers<\/td>\nHeated frame, low-temp curtain<\/td>\n<\/tr>\n
Cleanroom<\/td>\n0.8\u20131.5 m\/s<\/td>\nISO 14644-1 Class 5\u20138 rooms<\/td>\nAir-tight curtain, door interlock<\/td>\n<\/tr>\n
Machine protection<\/td>\n0.6\u20131.2 m\/s<\/td>\nRobotic cells, laser, welding<\/td>\nSafety interlock with machine PLC<\/td>\n<\/tr>\n
Explosion-proof<\/td>\n0.6\u20131.0 m\/s<\/td>\nATEX zones, chemical plants<\/td>\nEx d IIB T4 motor, anti-static curtain<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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.<\/p>\n

How to Choose the Right Type of High Speed Door<\/h2>\n

When a buyer sends us an inquiry, we ask for five engineering inputs<\/a>:<\/p>\n