Air Curtain Manufacturer in China
Save as much as 25% of your electric cost with our Aosun air curtain. Cost-efficient yet helps with HVAC workload. Aosun offers a heavy duty air curtain. Powerful fans that directly blow air downward to invisibly act as a barrier from outside air to inside air. In air-conditioned buildings like malls, restaurants and food factories, doorways can always be an exit point for the cooled air inside to escape. Thus, affecting the efficient functionality of your air-conditioning systems.
This ingenious capability of Aosun Air Curtain is done when a strong enough blow of air reaches the floor and prevents the exchange of outside and inside air. As the air curtain blows, inside air is pushed inside, and at the same time, outside air is being pushed away also. You don’t need to close doors. This invisible barrier offers great mobility going inside or outside.
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Why Choose Aosun to be your Air Curtain Manufacturer
- Aosun Air Curtain effectively prevents the entry of unwanted flying insects and dust particles from the outside
- Powered with highly durable fans for a reliable operation
- Features a solid ABS resin case and mounting for maximum safety of people passing through
- With Aosun’s 3D CFD simulations, you can have a clear sight on what kind of Aosun air curtain you really need
- Aosun also offers DC type Air Curtain for every refrigerated transport such as air-conditioned buses, refrigerated trucks and trains etc
- We manufacture Air curtains while strictly following highest safety and product standards such as AMCA, NSF, EPH, CE, ANSI
What is an Air Curtain?
An air curtain is also called an air door. Aosun air curtain actually is a motor-driven fan unit installed at the entrance of the building. It uses a high-speed motor to generate powerful airflow that can separate the indoor and outdoor air. It works as an “invisible door” to prevent the indoor air conditioning or heat loss and isolate it from external pollution.
Benefits of an Air Curtain
Save Energy and Cost
An air curtain is an energy-saving air door. Under the protection of air curtains, the cold or hot air produced by the air conditioner is difficult to dissipate. Air curtains can shorten the air conditioner operating hours and reduce the workload of the heating, ventilation, and air conditioning (HVAC) systems.
Air curtains can reduce heating and cooling costs(by up to 80% in some cases) and lower electricity bills. At the same time, it can reduce air conditioning equipment maintenance and repair costs.
Improve Indoor Environmental Comfort
The most important function of the air curtain is the shielding effect. It can prevent dust, dirt, flying insects, and bad smells from entering the interior. The air curtain can help you get rid of 80% flying insects to improve the sanitary conditions.
The filters in air curtains can improve the air quality by reducing 70% air pollution, thus keeping the air fresh. All in all, the air curtain can improve the environmental comfort for your staff or guests.
Improved Security
The air curtain provides an invisible barrier that improves visibility. Especially at the door of some workshops or cold storage rooms, air curtains can reduce the occurrence of accidents such as collisions.
In addition, in cold weather, the air curtain can reduce the impact of outdoor fog. Air curtains can keep the floor dry and prevent it from freezing.
It enables quick evacuation in the event of fire or other emergencies without the obstruction of physical barriers. The air flow formed by the air curtain can also slow down the spread of smoke to a certain extent.
How Does an Air Curtain Work?
In air-conditioned buildings, open vents can easily allow hot and cold air to escape, affecting the efficient operation of the air conditioning system. The air curtain installed at the door can effectively solve this problem.
After the air curtain is powered on, the air will get into the curtain device through the air intake. The rapid rotation of the impeller causes the air flow to enter the plenum chamber. The air in the plenum chamber is discharged from the evenly distributed nozzles, ultimately forming a strong airflow.
In the ejected air flow, 80% air will go back to the intake side of the air curtain. The remaining 20% air will flow in the opposite direction. When the air curtain is working, the indoor air is pushed into the room, and outdoor air is also exhausted. Thus, the air curtain will form an airtight barrier to separate the outside and inside air.
The air intake of the air curtain has the filtering function to protect the internal components such as heat exchangers, fans, and electronics from dust or particle damage.
Types of Air Curtain
Air curtains can be divided into many types according to different classifications. The following are the three most commonly used.
Recessed Air Curtain
Recessed air curtains are usually installed inside the ceilings or walls. Recessed air curtains can seamlessly integrate with the interior space. The devices of the recessed air curtain are made from high-performance materials like corrosion-resistant galvanized steel. The fans’ blades are made from anodized aluminum. The recessed air curtain can provide stable airflow. It is low-noise and durable.
The biggest advantage of recessed air curtains is their discreet design. A recessed air curtain is almost a type of commercial air curtain. It preserves the beauty of your space without compromising its primary functions. Recessed air curtains are very suitable for commercial or high-end places like restaurants, hotels, shopping malls, or office buildings.
Horizontal Air Curtain
Horizontal air curtains are the most popular and useful air curtains. Horizontal air curtains are usually installed above the entrance. The installation of a horizontal air curtain is very easy and has many sizes for you to choose from.
The airflow of the horizontal air curtain is blown out horizontally from both sides. The uniform pressure of the air curtain can provide a better barrier effect. Horizontal air curtains can make the internal temperature stable and reduce energy waste.
Horizontal air curtains have no restrictions on application locations. Whether you want to install it in a commercial or industrial setting, horizontal air curtains are suitable.
Centrifugal Air Curtain
The airflow enters the air curtain along the axis from one or both sides of the wind wheel and blows out in the direction perpendicular to the axis. The high-speed rotation of the impeller can generate a strong airflow to separate the indoor and outdoor air completely.
Compared with normal kinds of air curtains, centrifugal air curtains have greater air volume and longer air supply distance. If your space has a large flow of people or has a large door size, then a centrifugal air curtain is the perfect choice.
Applications of Air Curtain
Food Contact Places
Food contact places are typical areas where air curtains are used. Doors that are often left open can easily attract flying insects and dust into the room and contaminate food.
Air curtains can effectively block 99% of pathogens from entering the room and reduce the unpleasant smell of volatile organic compounds (VOCs). If you run a food processing plant, a bakery, or a restaurant, the excellent hygiene performance of the air curtain can provide you with all-round protection.
Medical Facilities
The air in medical facilities can contain disease-causing bacteria and pathogens. Our air curtains absorb 99.97% of microscopic pollutants and particles as small as 0.3µm, ensuring hygiene and safety for your hospital, nursing home, or clinic.
Cold Storage
The gate of the cold storage always has a large temperature difference. Typically using a centrifugal air curtain is used to form a stable air barrier to separate the indoor and outdoor air flow. The air curtain can help your cold storage keep a constant internal temperature and reduce loss of air conditioning, thus improving the efficiency of refrigeration equipment.
Moreover, the air curtain can extend the service life of the evaporator to eliminate ground moisture and prevent safety accidents caused by slippery ground. A cold room equipped with air curtains can also save you defrosting costs and keep your frozen goods in good condition.
How to Choose a Suitable Air Curtain?
The right air curtain can provide cost benefits in the long run. Before choosing an air curtain, there are three aspects you must consider.
Inlet Size
The height and width can determine the type and size of the air curtain you need. The width of the door determines the size of the air curtain, and the length determines the air volume.
If the door is too wide, you can choose multiple connected air curtains; if the height is too high, you can install a remote-controlled air curtain.
Climate Conditions
Climate conditions are also an important factor to consider when choosing an air curtain. In high-temperature or high-humidity environments, it is necessary to choose a high-performance air curtain that can withstand the harsh environment. If your buildings are near highways or in a strong sandstorm region, the effective isolation distance of the air curtain machine should be higher than the height of the door.
Nature of Business
When choosing an air curtain, you should also consider the nature of your business. If you operate a commercial building, the aesthetics of the air curtain are very important. You can choose a recessed air curtain to blend in with the interior decoration.
On the other hand, if industrial facilities have higher requirements for air curtain performance, centrifugal air curtains can be selected. Centrifugal air curtains can provide greater air volume and longer exhaust distance (3-5m).
After extended use, air curtains may accumulate dirt inside and outside. Failure to clean them promptly can affect their performance.
After daily use, turn off the power and wipe the surface dust with a towel. Periodically, open the air curtain and wipe dusty parts such as the fan blades and louvers with a damp cloth. Clean any water stains with a dry cloth. Air curtains of different models and sizes may have different structures. Contact Aosun for details on how to properly clean and maintain your air curtain.
Before installation, calculate the power supply capacity and the cross-sectional area of the wires.
Positioning: Remove the mounting plate behind the air curtain and drill holes in the concrete wall to position it. Tighten with expansion screws to ensure there are no gaps.
Installing the air curtain: Hang the air curtain upside down on a fixed mounting plate with the air outlet facing downward and secure with screws.
Power on: Connect the power cord and test the unit. If it operates normally without shaking, installation is complete.
The installation method varies slightly depending on the model and size of the air curtain. Some large door frames may require multiple air curtains. If you encounter any problems during installation, please contact Aosun. We will provide professional installation advice.
Although air curtains also have cooling and heating functions, their working principles and uses are completely different from those of air conditioners.
The powerful airflow generated by the motor of an air curtain acts like an invisible curtain. It isolates indoor and outdoor air, preventing energy loss caused by temperature differences. It also blocks the entry of dust, insects, and other pollutants.
Air conditioners, on the other hand, utilize the properties of refrigerant to compress it, creating a cooling or heating effect. Air conditioners have a much greater range than air curtains and consume more power.
Air curtains and air conditioners are typically used together. The air conditioner adjusts the indoor temperature, while the air curtain maintains it.
An air curtain uses a built-in fan to create a continuous, even downward airflow in front of doors, windows, or openings. This high-speed airflow forms a stable “air wall” at the opening, effectively separating indoor and outdoor air.
When cold outdoor air attempts to enter, it is redirected or blocked by this air barrier, significantly reducing the amount of cold air seeping into the room. This not only maintains a stable indoor temperature but also reduces the load on the heating system and minimizes energy loss.
Yes, air curtains can reduce the amount of odors entering a room to some extent.
An air curtain creates an “air barrier” at doorways or passageways using a high-speed downward airflow, blocking the natural flow of outdoor air into the room. When there are smells of smoke, cooking fumes, garbage, or other unpleasant odors outside, this airflow barrier slows down or even prevents these odors from seeping in, resulting in cleaner indoor air and a more stable odor.
However, it’s important to note that air curtains primarily “reduce” the spread of odors, not completely eliminate them. If the concentration of external odors is very high or the air curtain’s airflow speed is insufficient, its effectiveness may be compromised.
Whether an air curtain can operate continuously for an extended period depends on the quality of the equipment, the usage scenario, and maintenance. Industrial-grade products can typically operate 24 hours a day, while home or general commercial models require reasonable time management. Key measures include selecting products suitable for the needs, ensuring good heat dissipation, and performing regular maintenance to extend lifespan and ensure safety.
1. High Durability of Core Components
Mature Motor Technology: Employs efficient and durable external rotor motors or brushless DC motors, offering excellent heat dissipation and a long lifespan, capable of supporting continuous operation for thousands to tens of thousands of hours.
2. Heat Dissipation and Temperature Control System
Motors typically have built-in overheat protection devices that automatically cut off power or reduce speed when the temperature gets too high to prevent burnout.
Some industrial-grade models use forced air cooling or independent heat dissipation channels to ensure stable temperatures for core components.
3. Simple maintenance: Simply clean the filter and housing regularly to maintain performance; no complicated maintenance is required.
Air curtains are extremely energy-efficient and have low operating costs. Its direct power consumption is not high, but by protecting the indoor temperature environment, it can help your air conditioner or heater save more electricity bills, making it a cost-effective “energy investment”.
Here are some tips for saving electricity:
On-demand start and stop: It can be turned off when there is no need for a long period of isolation (such as during the time when no one is in the store).
Select the appropriate power: Choose a model with a suitable power based on the size of the door opening. It’s not the case that the higher the power, the better; just enough is fine.
Keep clean: Regularly clean the filter screen and fan blades to ensure smooth ventilation, which can make the motor run more efficiently and indirectly save electricity
For your personal and property safety and to ensure the best performance of your equipment, we strongly recommend that you hire a qualified professional electrician or contact the air curtain brand’s after-sales service team directly for installation. This installation fee is a necessary investment that will save you from many potential risks and troubles in the future. We provide an installation video at the time of purchase.
