RHIDOOR Industrial Doors

Roller shutters sell well on the market. Earlier posts covered different types, styles, and repair. As the tech updates, more types and styles appear, including some that look good and work well, and quite a few homes now use them too. Today let’s look at the various sizes.

High-speed roller shutter sizes:
Makers build high-speed shutters up to W10 x H16 m, opening and closing at 0.6 to 2.0 m/s. Panel thickness: 0.3, 0.35, 0.4, 0.45 mm. Whole-panel thickness: 12 to 20 mm. There is no standard; each company sets its own.

Color steel roller shutter sizes:
Panel thickness options: 0.325, 0.4, 0.5, 0.6, 0.8, 1.0 mm. Rails: 80, 90, 105 mm, etc. Rail spec: 5.5 to 5.8 cm, or 9 cm. Aluminum spec: 0.6 to 1.2; rail 8 cm. Slat spec: type 77 is usually 77 mm wide per slat; type 99 is 99 mm.

Garage roller shutter sizes:
Set by the garage’s height and width. Garage shutters are almost unlimited: max build height 10 to 15 m, max width 4 to 12 m. Common sizes: the shaft is usually an 80 mm tube; end brackets vary by door size; decide on a cover by use. A small single garage (under 3 m wide, under 2.5 m high) uses type 55 or 77 slats; a large double garage uses type 77 slats.

Electric roller shutter sizes, several specs:
1. 3.5 m long x 4.3 m wide. By opening type, roller shutters split into manual and electric. Manual ones use the spring on the center shaft for balance; electric ones use a dedicated motor to turn the shaft and stop at set limits.
2. 5.2 m long x 4.3 m wide. By slat material: inorganic fabric, grid, aluminum alloy, crystal, stainless steel, and reinforced wind-resistant.
3. 4.5 m long x 4.8 m wide. By install: in-wall or side-wall (inside or outside the opening). By opening: top-roll or side-roll.

Fire-rated roller shutter sizes:
Common ones are about 2.5 x 3 m. The smallest on the market is 1.9 x 0.9 m, which is also the standard. The most common are 2 x 0.9 m, and the smallest is 1.9 x 0.9 m. That is the floor. More sizes are designed to the actual case. There is no fixed rule for the largest or smallest fire shutter size, nor for width.

On sizes, customers need not worry much. A proper, professional roller shutter maker sends an engineer to measure the opening and build the shutter to fit.
(Content generated by AI, for reference only)

A roller shutter manufacturer explains what a fire-rated roller shutter is.
The fire-rated roller shutter maker produces a door that fits large openings in buildings or commercial sites for fire, heat, and flame resistance. The product meets set technical standards in making and installing. The fire-rated roller shutter is a must-have fire device in modern high-rises. Beyond the normal job of a door, it blocks fire and smoke, slows the spread of fire, and helps rescue and evacuation. Its specific fire role shows in these points:

The curtain material and surface size of a fire-rated roller shutter, and its fire rating, follow the construction budget and settlement standards.
A fire-rated roller shutter must have a controller to move it up, down, and stop. Manual buttons on both sides control the electric shutter’s rise, fall, and stop. After the shutter drops and closes in a fire, it must be able to lift again, then auto-return to closed.
A fire-rated roller shutter builds on the steel shutter by reworking the drive parts and adding fire-rated electrics to get the fire function. A fire-rated motor, run by a fire control box through a speed unit, drives the shaft to open and close the curtain. In a power cut, you can use the manual handle on the fire motor for manual operation.
Electric fire-rated roller shutter — Uses a coupling instead of a sprocket drive. The rail sticky points embed copper or nylon plates. It must suit factories and warehouses that use or store flammable gas or volatile chemicals with high fire or explosion risk.
The electric fire-rated roller shutter works like a fire wall as a horizontal fire compartment. It has 13 parts: curtain plate, seat plate, rail, bracket, shaft, box, control box, door machine, limiter, lintel, manual quick-release, button switch, and safety device. It goes where a fire wall compartment is hard to fit, such as open elevator halls, escalators, and wide department-store floors.
Electric fire-rated roller shutters are gaining favor. Many workshops, shops, and garages fit them. Against manual shutters, the electric type is not just better looking and frees users from unlocking and pushing; it is smart, and more important, it protects life and property with its fire function.

The fire-rated roller shutter is a common type used among fire doors. It has evolved from single-leaf to double composite shutters and twin-track twin-curtain inorganic fabric shutters. To meet stricter fire demands, manufacturers keep researching and testing. Early steel fire shutters were single-plate: the curtain was made of 0.5 to 1.5 mm thin steel strips cut and rolled into linked slats. The single-plate steel shutter has a simple structure, high strength, wind resistance, theft protection, good formability, and is easy to process, install, and use. But its fire resistance and heat insulation are weak.

After steady research by manufacturers, the composite steel fire shutter is now the most used type globally. Compared with the single-plate version, its improved structure keeps the old advantages and raises heat insulation noticeably. In curtain terms, the composite steel fire shutter is built from composite sandwich slats: two thin steel strips with an inorganic fiber insulation layer between them. The inorganic fibers makers use are mainly rock wool, mineral wool, glass wool, or aluminum silicate fiber. Because inorganic fiber has low thermal conductivity, the composite steel shutter insulates far better than the single-plate type.

The composite steel fire shutter is made by pressing the main and auxiliary plates in one pass. The surface is smooth, weld-free, and strong. RHidoor’s custom steel fire shutters are filled with fire-retardant insulation, which cuts heat radiation on the unexposed side. They hold fire for a long time, perform well, and can drop the water-curtain protection system, meeting the compartment needs of all class-1 fire zones. The vertical-lift steel fire shutter is fitted with an electric open-close unit and can run in automatic and linked modes with the fire control center.

A fire-rated roller shutter must keep high fire strength and a long fire duration at the scene. So its build is demanding: the whole system must survive high heat for a set time. How long it holds fire is the main pass-or-fail measure. Large buildings, per fire law, have a central fire control system. When a fire starts, the smoke sensor on the ceiling picks up smoke first and alarms the central system. The system identifies the zone and powers the fire shutters there, which descend at a set speed. When a shutter reaches about 1.5 meters above the floor, it stops to let people evacuate. After holding for a set time, it resumes descending until closed.

If a shutter’s fire strength is not enough during an incident, it cannot hold the fire compartment for the expected time. For the people inside, that is disastrous. So the fire duration that proves fire strength is the key check in quality testing.

So where do you need fire-rated roller shutters, and what do they do?
Common places include underground garages, hotel atriums, malls, and industrial buildings where gas, dust, or other explosion risks may appear during production, processing, handling, or storage.

The design of a fast automatic roller shutter is stronger against wind pressure than ordinary high-speed models. It has more horizontal wind bars in the curtain, and the higher density lets the door withstand winds of force 9 to 10, taking up to 25 kg per square meter. So when buying an automatic high-speed shutter, look to RHidoor. The wind-resistant design solves the problem of exterior plant doors that fail to close under high wind pressure. It cuts the amount of sand and dust blown into the plant, speeds up logistics, and gives you fast flow with free opening and closing.

Advantages of the wind-resistant automatic high-speed shutter:
Strong sealing, no dust buildup, high stability, easy to clean. It meets GMP requirements for clean environments (class 1000 to 100000). It suits modern industrial plants used in medicine, food, electronics, chemicals, tobacco, printing, textiles, supermarkets, precision machinery, logistics storage, and clean industrial zones. It insulates, blocks dust, cuts noise, and seals out odors. It saves energy, opens and closes automatically at high speed: 0.6 to 1.5 meters per second (with a frequency converter the speed is adjustable), and runs over 1500 cycles a day without fault.

Safety devices on the automatic wind-resistant high-speed shutter:
1. Safety light curtain — About 30 cm above the floor, infrared safety beams are installed. When the door is closing and a person or vehicle crosses the beam, the door stops and reverses to stay safe.
2. Bottom safety airbag — If a person or vehicle cannot dodge in time while the door closes, the pressure they pass to the airbag triggers its circuit and the door lifts automatically.
3. Low-voltage safety power — The control system uses low-voltage safety power, with a ground terminal wired to a dedicated earth line.
4. Sealing — The bottom of the curtain has a weighted air-seal strip that presses tightly against uneven ground. Seals run down both sides of the frame for a tighter closure.

Fast automatic roller shutter: structure and materials
a. Material: 2.5 mm thick galvanized steel plate with quality baked paint.
b. 2.0 mm stainless steel plate, bent to shape.
c. 3.5 mm industrial aluminum alloy frame. Three options.
d. Curtain: imported high-density French industrial base fabric (PVC-smooth surface, chemically stable against acid, alkali, oil, and water).
e. Curtain colors: yellow, blue, gray, red, white, and more.
f. View window: made in any style on request.
g. Control system: smart computer-programmed control, compatible with common protection devices.

Drive motor: German-made SEW high-performance brake motor, 220V to 380V, 50Hz, IP55, 0.75 to 1.5 kW, 1500 rpm. Handles heavy loads safely. You can also choose an imported-brand or well-known domestic motor. Domestic motors cost a bit less than imported and offer good value.

Startup methods for the high-speed roller shutter series:
A: Manual button
B: Manual pull cord
C: Remote control
D: Radar
E: Ground induction loop
F: Photoelectric sensor
G: Interlock (two-door interlock)

Price of the wind-resistant automatic high-speed roller shutter depends on the customer’s design and the actual install site. RHidoor offers different install methods and different high-speed shutter configurations. For questions, call +86 18938501256 (ruihua@rhidoor.com).

When buying a roller shutter, customers often ask which materials are good. Normally, the more expensive the material, the better its quality. But a better material does not automatically mean a better door. What really counts is the manufacturer’s quality control in production and installation. The key is to pick a shutter that fits your requirements. More expensive is not always better.

Today’s shutter fabrics fall into two main groups: polyester fiber wrapped in PVC, and glass fiber wrapped in PVC. For both groups, the shared technical parameter that measures light transmission is the mesh opening rate. That is the share of the fabric taken up by holes, per unit area. Fabrics usually come in 1%, 3%, 5%, 8%, or 10% mesh opening rates, used for different places and functions. Installed indoors, a darker fabric of the same mesh rate transmits light and view better; a lighter fabric does the opposite. Used outdoors, a fabric with an aluminum coating or a darker color is better, because the coated fabric reflects more heat and the dark fabric absorbs more.

Roller shutter materials include: grid, color steel, aluminum alloy, stainless steel, PVC, and crystal.

Aluminum alloy roller shutter — The most common and most traditional type. Strong on looks and eco-friendliness, but its main drawback is the noise.
Color steel roller shutter — Comes in many colors. You can choose different panel thicknesses and add window panels or a pass door.
Grid roller shutter — Breathable and light-transmitting while still theft-resistant. Very modern looking.
Crystal roller shutter — Made with PC bulletproof-glue crystal slats. Widely used in clothing malls. Very stylish.
PVC roller shutter — Made from PVC, as the name says. Blocks dust fast and effectively, with strong insulation, warmth retention, and soundproofing.
Stainless steel roller shutter — Panels made of stainless steel. Glossy surface that resists wear and scratches.
Fire-rated roller shutter — Built for fire and heat isolation at large building openings. The design and installation play a real technical role. Fire-rated shutters are used widely in industrial and civil buildings as fire compartments. They stop fire from spreading and protect life and property. They are a necessary fire safety feature in modern buildings.

The main types of fire-rated roller shutter are: composite steel fire shutter (fire and smoke resistant), inorganic premium fire shutter (twin-track, twin-curtain), premium steel water-mist fire shutter, steel composite side-mounted fire shutter, steel composite horizontal fire shutter, inorganic premium folding fire shutter, and various types with pass doors in the curtain.

Among all these materials, fire-rated shutter material is what people in building fire safety use most. Different materials give different shutter styles and fire ratings. RHidoor has laid out this detailed material list for customers as a reference. We believe you will find the right shutter for yourself. To learn more about roller shutters, follow the RHidoor website.

Electric roller shutters come in many materials: PVC, aluminum alloy, stainless steel, high-speed, folding, and inorganic fabric fire-rated shutters, among others. Each product and each material has its own pros and cons. What matters most is where the shutter will be used. Pick the type that matches your needs. Here are a few points to use as a buying checklist.

a: PVC crystal roller shutter
For an internal passage in a typical factory, a PVC electric roller shutter works well. PVC is cheap, comes in many colors, and is easy to replace. If it gets hit or torn, just swap the curtain and the problem is solved.

b: Electric roller shutter
If you need theft protection outdoors, go for a hard electric roller shutter or a high-speed shutter. The panels are solid and hard to break, so they open and close fast and also serve as a security door.

c: Folding roller shutter
If the opening at the install site is very large and you rarely open or close it, a folding roller shutter is worth considering. For the material, lean toward something light yet sturdy and durable. The material should handle more than the curtain’s actual lifting force, because a shutter motor’s lifting capacity drops slowly over time.

d: Electric roller shutter
Check how well the shutter is lubricated. A good one dissipates heat fast. It uses all-gear drive with no chain and no belt, which extends the life of the motor core.

When choosing an electric roller shutter, the rule still holds: match the material and type to where you will use it. There are many materials and many product styles. The points above are from a roller shutter manufacturer to help you decide. If anything above is unclear or you have questions, reach out to us. We can explain in detail and build a shutter to your exact needs.

Cars are part of daily life now. They make getting around easy, and a garage door keeps your car safe. Today RHidoor, a garage door manufacturer, will walk you through a remote-control garage door that is easy to use, safe, and good value.

Remote-control garage doors are easy to use. With the remote handset you can:

Set the automatic close function
a. Open the garage door motor cover. Press “+” for over 4 seconds. The display shows “-“, which means you can now set the auto-close function.
b. Press “+” or “-” to adjust the auto-close time. Each press of “+” adds 1 to the display; each press of “-” subtracts 1. A display of “1” means the door closes automatically after 1 minute; “2” means 2 minutes, and so on. A display of “0” cancels the auto-close function. Press “Set” to confirm, and the host enters standby.
c. The auto-close function is off by default.

Electric garage doors are quiet, safe, and eco-friendly:
They are safe and sturdy, built entirely from aluminum alloy panels. They look elegant and clean. There is an emergency lock for power outages. If the door meets resistance it bounces back, protecting people and cars. Insulation, wind resistance, and sealing are all solid.

Villa remote-control garage door materials:
a. Surface treatment uses electrostatic powder coating. It resists corrosion and scratches, is easy to clean, and the color lasts. The painted surface holds up against sunlight, rain, and corrosion. Minor bumps bounce back. If damaged, you can replace a single slat. You can also add light-transmitting profiles between slats so your car gets some sun.
b. Several installation options: external, internal, or mid-mount. Space requirements are low. It does not take up interior garage space. Installation is simple and fast, saving time, and the look is modern and stylish.

New safety tech for garage doors:
a. Safety devices. You can add an infrared sensor system and wireless remote control. The door has its own self-developed automatic roller shutter anti-theft interlock. The door’s own weight provides the theft protection, making it safer.
b. The electric roller garage door runs on an AC tubular motor or an external motor, 220V or 110V. It saves power, is safe and quiet, and has thermal protection. You can fit a UPS backup power supply or a manual chain so the door still works during a blackout.

Roller shutters come in three operating types: electric, manual, and remote-controlled. Electric roller shutters are the most common. They are also called high-speed doors. They are electrically driven industrial doors that open and close fast. People use them widely because they seal well and offer good insulation and wind resistance.

So how good is the material that manufacturers use? Here is a rundown:

Aluminum alloy electric roller shutter — The most common and most traditional type. It has clear advantages in looks and eco-friendliness, but its main drawback is the noise it makes.
Color steel plate electric roller shutter — Comes in a wide range of colors. You can pick door panels of different thicknesses and add window panels or a pass door.
Grid electric roller shutter — Its main feature is breathability and light transmission while still offering theft protection. It has a very modern look.
Crystal electric roller shutter — Made with PC bulletproof-glue crystal slats. Used widely in clothing stores and malls. Very stylish.
PVC electric roller shutter — As the name suggests, made from PVC. It blocks dust in the air quickly and effectively, and offers strong insulation, warmth retention, and soundproofing.
Stainless steel electric roller shutter — Door panels made of stainless steel. The surface is glossy and resists wear and scratches.

There are many electric roller shutter types on the market. Each material has its own strengths and weaknesses. There is no hard rule that says one is simply better than another. What matters is where the shutter will be used. Pick the one that fits the site and you have made the right choice.

For example, an internal passage inside a typical factory can use a PVC electric roller shutter. PVC is reasonably priced and comes in many colors. It is also easy to replace. If it gets hit or torn, just swap the curtain and the problem is solved.

If you need theft protection outdoors, go for a hard electric roller shutter or a sectional lift door. The panels are solid and hard to break, so they open and close fast and also work as a security door. Two birds with one stone. If the opening is very large and you rarely open or close it, a folding door is worth considering.

To sum up, I do not think it is worth arguing over which material is best for an electric roller shutter. The right one for your situation is the best one.

Fire-rated roller shutters come in two types: steel and inorganic-fabric. The inorganic type splits into rolled and lift types; the rolled inorganic-fabric shutter is the common one.

a. Steel fire-rated shutter is made of steel, two steel layers with aluminum silicate in between; that’s the composite steel fire-rated shutter.
b. The inorganic-fabric shutter curtain is a non-metal material treated and sewn; flexible and high tensile. Against the steel shutter (with sprinkler), its premium version beats it on corrosion and moisture resistance and on fire performance. Large malls, offices, and subway stations commonly install it. It resists high heat, has a thin curtain that takes little space, and runs quietly.

Lift fire-rated shutter uses the lift method, made of inorganic fabric. Good for large, long openings, best above 10 m. Curtain weight no more than 5 kg/m², one fifth of steel, lowering the load demand on the building.
Rolled fire-rated shutter uses inorganic fabric in drum form; simple and easy, one of the most used. Best within 10 m openings. Thin non-metal curtain, little space, raises usable space in the same building, and lowers the ceiling-height demand. No water curtain needed; no supply pipes or control gear, less fire water, and a much lower project cost.

Buy with more confidence.

Before buying an industrial roller shutter, know what it is, its types, and its advantages.

Many find industrial shutters unfamiliar, but they come in several types with real advantages. Here’s the rundown from RHidoor.

What is an industrial roller shutter?
Common in factories, workshops, and warehouses: durable, solid, fast to start, and quiet. Motor-driven, with a manual backup if power fails. Transparent, good-looking, safe, and light-friendly, with good operation. Versus other lift doors it saves interior space and installs easier, and bounces back without deforming after a light bump.
Types and advantages
a. High-speed shutter: made of PVC soft curtain; auto open/close is fast and efficient. Wind-proof, sound-proof, odor-proof, dust-proof, and light-transmitting. Used in food, textile, printing, precision machinery, and other indoor settings. Meets high-performance logistics, saves energy, and improves AC efficiency. But it can’t be an outdoor door (no theft resistance), so its use is limited.
b. Aluminum alloy shutter: common because it performs better and reaches further. Resists rust, corrosion, and impact. Solid, good-looking, and theft-resistant, so safer.
Advantages
a. Powder-coated, pretty and bright, resists scratches and rain, durable. The largest now reach 65–70 m², wind resistance up to level 10, keeping the door safe.
b. Second-roll-shaft safety design and tooth-hook design tighten slat joints, cutting gaps, noise, and wear.
c. Auto-balance structure cuts noise from door-rail collision, protects the motor, and extends its life.
d. Wireless remote control, works within 30 m unobstructed.

Related Articles

Related Articles

Related Articles

Related Articles

Related Articles

Related Articles

Related Articles

Related Articles

Related Articles

Related Articles