Improve Airflow with Spiral Ducts

Choose from our diverse range of Spiral Ducts, available in various diameters, lengths, and configurations, to meet your specific project requirements. Whether you need ductwork for a small residential installation or a large-scale industrial project, we have the perfect solution to optimize your HVAC system’s performance.

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Airandus - Your Spiral Duct and Fittings Manufacturer

Welcome to Airandus, a renowned Chinese factory specializing in top-quality ventilation products. With our unwavering commitment to excellence and customer satisfaction, we have earned a trusted reputation in the industry.

At Airandus, we recognize the crucial role of efficient airflow management in ensuring optimal indoor air quality and comfort. To meet your specific needs and requirements, we offer a comprehensive range of ventilation solutions that combine advanced technology, superior materials, and precision craftsmanship.

Among our standout product lines is the Spiral Duct and Fittings. Crafted with utmost precision and using high-grade materials, our spiral ducts feature a spiral design that enables smooth and efficient airflow while minimizing pressure loss. Complementing the ducts, our fittings are meticulously engineered to seamlessly connect and enhance the performance of the ventilation system, ensuring reliability and effectiveness.

In addition to Spiral Duct and Fittings, we provide a diverse selection of ventilation components. Our Duct Dampers are essential for regulating and controlling airflow. With precise control and robust construction, our dampers ensure efficient balancing of airflow in HVAC systems and precise ventilation control in specific areas, making them highly durable and reliable.

For adjustable airflow direction, our Quadrants offer a practical solution. Designed for flexibility and ease of installation, these innovative components allow you to direct and distribute airflow according to specific requirements, maximizing ventilation efficiency. With their durability and user-friendly design, our Quadrants ensure hassle-free operation.

When it comes to accessibility and maintenance, our Access Doors are the ideal choice. Built for convenience, these doors provide easy access to ductwork, facilitating inspection, cleaning, and maintenance. Their sturdy construction guarantees durability while ensuring the integrity of the ventilation system.

To enhance automation and functionality, we offer Damper Actuators that precisely control the opening and closing of dampers. Compatible with various control systems, these actuators contribute to an efficient and automated ventilation system, providing reliable performance and ease of operation.

At Airandus, we prioritize quality and reliability. Our ventilation products undergo rigorous testing to meet industry standards and regulations, earning certifications such as CE, RoHS, and UL. This ensures the safety, performance, and environmental sustainability of our products.

As a customer-centric company, we are dedicated to providing exceptional service and support. Our experienced team is ready to assist you in selecting the right ventilation products for your unique requirements. We work closely with our clients, tailoring solutions that exceed expectations and deliver superior results.

With our extensive experience and global presence, we have formed strong partnerships in over 60 countries. Contractors, HVAC professionals, and facility managers rely on Airandus for their ventilation needs. From large-scale commercial projects to residential applications, we have the expertise and product range to meet diverse requirements.

Visit our website to explore our product offerings, certifications, and industry expertise. Contact us today to experience Airandus as your trusted partner in delivering ventilation solutions that enhance indoor air quality, comfort, and efficiency. Choose Airandus for top-quality ventilation products that make a difference.

Spiral Duct and Fittings

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Spiral Duct and Fittings

Discover the excellence of Airandus' Spiral Duct and Fittings. Our precision-crafted ducts ensure efficient airflow with minimal pressure loss. Complemented by top-quality fittings, our ventilation system maximizes performance and durability. Experience superior ventilation solutions with Airandus.

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Access Doors

Gain convenient access to your ventilation system with Airandus' Access Doors. Designed for ease of use, our sturdy and reliable doors provide hassle-free entry to ductwork, allowing for effortless inspection, cleaning, and maintenance. Ensure the integrity of your ventilation system while simplifying upkeep with Airandus' Access Doors. Experience accessibility made easy.

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Duct Dampers

Experience superior airflow control with Airandus' Duct Dampers. Our robust and precise dampers enable efficient regulation of airflow in HVAC systems. Achieve optimal ventilation and enhance comfort with our reliable and durable Duct Dampers. Trust Airandus for exceptional airflow management solutions.

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Damper Actuator

Enhance the automation and control of your ventilation system with Airandus' Damper Actuators. Our advanced actuators precisely regulate the opening and closing of dampers, ensuring optimal airflow management. Compatible with various control systems, our reliable Damper Actuators contribute to an efficient and automated ventilation system. Trust Airandus for seamless operation and superior airflow control.

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Unlock adjustable airflow control with Airandus' Quadrants. Designed for flexibility and ease of installation, our Quadrants allow you to direct and distribute airflow according to your specific requirements. Enhance ventilation efficiency and achieve personalized comfort with our reliable and user-friendly Quadrants. Trust Airandus for precise airflow direction solutions.

Why choose to use our Spiral Duct and Fittings

Choosing Airandus’ Spiral Duct and Fittings offers numerous benefits for your ventilation needs. Here’s why you should opt for our exceptional products:

Efficient Airflow: Our precision-crafted spiral ducts are designed to provide efficient airflow distribution. With a spiral design, they minimize pressure loss, allowing for smooth and unrestricted airflow. This ensures optimal ventilation performance and energy efficiency.

Durability: We prioritize quality and durability in our manufacturing process. Our spiral ducts and fittings are built to withstand demanding environments and resist corrosion, ensuring long-lasting performance and reliability.

Easy Installation: Airandus’ Spiral Duct and Fittings are designed for easy and efficient installation. The fittings seamlessly connect to the ducts, saving time and effort during installation. This means reduced labor costs and faster project completion.

Customization Options: We understand that each project has unique requirements. That’s why we offer customization options for our spiral ducts and fittings. Whether it’s size, material, or specific design requirements, we can tailor our products to fit your exact specifications.

Compatibility: Our spiral ducts and fittings are compatible with a wide range of ventilation systems and components. This ensures seamless integration into your existing setup or new installations, allowing for hassle-free implementation.



Sprial duct and fittings background

Quality Assurance: Airandus products undergo rigorous testing and meet international quality standards. Our Spiral Duct and Fittings are approved by certifications such as CE, RoHS, and UL, guaranteeing their quality, safety, and compliance with industry regulations.

Industry Expertise: With years of experience and expertise in ventilation solutions, Airandus is a trusted name in the industry. We have served clients worldwide, and our products have been widely adopted in various commercial, residential, and industrial projects.

Exceptional Customer Support: At Airandus, we prioritize customer satisfaction. Our knowledgeable and dedicated team is ready to assist you at every step, from product selection to technical support. We are committed to providing excellent customer service and ensuring a smooth experience for our clients.

Choose Airandus’ Spiral Duct and Fittings for superior airflow distribution, durability, easy installation, customization options, compatibility, quality assurance, industry expertise, and exceptional customer support. Trust us to meet your ventilation needs with top-quality products that deliver outstanding performance and reliability.

Airandus Spiral Duct and Fittings Manufacturing


What is a spiral duct and fittings?

A spiral duct is a type of ventilation ductwork that features a spiral or helical design. It is constructed using a continuous strip of metal that is wound into a spiral shape, creating a cylindrical duct. Spiral ducts are commonly made from galvanized steel, stainless steel, or aluminum.

Fittings, on the other hand, refer to the various components used to connect and enhance the performance of spiral ductwork. These fittings include elbows, reducers, couplings, transitions, and dampers, among others. They are designed to ensure proper airflow distribution, smooth transitions between duct sections, and efficient connection to other HVAC components.

Spiral duct and fittings offer several advantages over traditional rectangular ductwork. The spiral design reduces pressure loss, resulting in improved airflow efficiency and reduced energy consumption. The smooth inner surface of the spiral duct also minimizes air resistance and lowers the chances of dust accumulation, improving indoor air quality.

In addition, spiral duct and fittings are known for their durability and ease of installation. The strong and rigid construction of spiral ducts ensures structural integrity and resistance to wear and tear. The fittings are designed to provide secure connections, making installation faster and more efficient.

Spiral duct and fittings are commonly used in various applications, including commercial buildings, industrial facilities, restaurants, schools, hospitals, and more. They are ideal for HVAC systems that require efficient and reliable airflow distribution, such as heating, ventilation, and air conditioning systems.

Overall, spiral duct and fittings offer a cost-effective and efficient solution for ventilation and air distribution needs. Their versatility, durability, and ease of installation make them a popular choice in the HVAC industry.

What is the production process of Sprial duct and fiitings?

The production process of spiral duct and fittings involves several stages. Here is a general overview of the typical manufacturing process:

  1. Material Selection: The first step is selecting the appropriate material for the spiral duct and fittings. Common materials include galvanized steel, stainless steel, or aluminum. The material choice depends on factors such as durability, corrosion resistance, and project requirements.

  2. Coil Preparation: The selected material is typically in the form of coils. The coils are uncoiled and flattened to prepare them for the next stage of the production process.

  3. Spiral Duct Formation: The flattened coils are fed into a spiral duct machine. This machine forms the coil into a continuous spiral shape by wrapping it around a mandrel. The edges of the coil are interlocked or seamed together to create a tight and secure connection along the length of the spiral duct.

  4. Seam Welding: In some cases, the interlocked edges of the spiral duct may require additional reinforcement. This can be achieved through seam welding, where a continuous weld is applied along the length of the interlocked seam. Seam welding strengthens the connection and enhances the integrity of the spiral duct.

  5. Fitting Fabrication: Fittings such as elbows, reducers, and transitions are fabricated separately from the spiral duct. They are formed using specialized machines that shape and bend the flat material into the desired fitting shape. The fittings are typically connected to the spiral duct using various methods, including welding, crimping, or fasteners.

  6. Surface Treatment: After forming the spiral duct and fittings, surface treatment may be applied to enhance their durability and appearance. This can include processes such as galvanization or powder coating for corrosion resistance and paint application for aesthetic purposes.

  7. Quality Control: The finished spiral duct and fittings undergo quality control checks to ensure they meet industry standards and project specifications. This may involve inspections for proper dimensions, weld quality, surface finish, and overall product performance.

  8. Packaging and Distribution: The final step involves packaging the spiral duct and fittings for distribution and shipment to wholesalers, contractors, or construction sites.

It’s important to note that the exact production process may vary depending on the manufacturer, the type of spiral duct and fittings being produced, and specific project requirements. Advanced manufacturing technologies and equipment may be employed to improve efficiency, accuracy, and production capacity. Compliance with relevant industry standards and regulations is crucial throughout the production process to ensure the quality and performance of the spiral duct and fittings.

What fittings are used with spiral ductwork?

Various fittings are available for use with spiral ductwork to ensure proper airflow distribution and connection to other HVAC components.

Important fittings used with spiral ductwork:

  1. Elbows: Elbows are used to change the direction of airflow in the duct system, allowing it to navigate around obstacles or corners.
  2. Tees: Tees are fittings that enable the duct to branch off into multiple directions, facilitating the distribution of air to different areas.
  3. Transitions: Transitions are used to connect spiral ductwork to other components, such as grilles, registers, or other types of ductwork. 

How is spiral duct installed?

The installation of spiral duct involves several steps to ensure proper alignment, connection, and support of the ductwork.

Important steps for installing spiral duct:

  1. Planning and layout: Determine the best route for the ductwork and mark the locations for fittings, supports, and connections.
  2. Cutting and assembling: Cut the spiral duct to the required lengths, and assemble the fittings using compatible connectors and fasteners.
  3. Support and suspension: Secure the ductwork using appropriate hangers and supports, ensuring it is properly aligned and supported along its entire length.

Can spiral ductwork be used in residential applications?

While spiral ductwork is commonly used in commercial and industrial settings, it can also be suitable for certain residential applications.

Important considerations for using spiral ductwork in residential applications:

  1. Space availability: Spiral ductwork requires more space compared to traditional rectangular ducts. Ensure that there is enough space for installation.
  2. Aesthetic preference: Spiral ductwork can be left exposed, adding an industrial or modern look to a residential space. Consider whether this fits the desired aesthetic.
  3. HVAC system design: Consult with a professional HVAC contractor to determine if spiral ductwork is appropriate for the specific residential HVAC system design and requirements.
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