What is a spiral canal?
- Structure: They are made of metal sheets (usually galvanized, aluminum or stainless steel) that are connected in a spiral. Its internal surface is smooth, which reduces friction and improves air flow, and its external surface has spiral seams that increase strength.

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- Galvanized: widely used and resistant to rust, suitable for most environments.
- Aluminum: light and ideal for wet areas.
- Stainless steel: for special sanitary or industrial environments.
- Diameter: usually between 10 and 200 cm.
- Standard length: 3 meters, but can be customized up to 6 meters.
- Sheet thickness: 0.4 to 1.25 mm depending on air pressure and application.
Spiral channel applications
Air conditioning:
- In residential, commercial buildings, sheds, and factories to transfer supply, return, or exhaust air.
Material transfer:
- Moving bulk materials such as grain, sawdust, or powder in industries.
Dust collection:
- Due to the smooth internal surface, it is suitable for dust extraction systems in wood or carpentry factories.
Industrial and kitchen hoods:
- Because of high suction and good efficiency.
Smoke discharge:
- In parking lots or industrial environments to release toxic gases.
Garbage shooting:
- In tall buildings for waste transfer.
Specific industries:
- Such as petrochemical, automotive, or laboratories to transfer liquids or oily substances.
Advantages of spiral canal
- High strength: the spiral structure and diagonal seams make it resistant to pressure and impact.
- Leakage reduction: spiral seams create better air sealing.
- Better air flow: smooth internal surface reduces friction and pressure drop, so system efficiency is higher.
- Easy installation: need less connections and faster installation than square channels.
- Beautiful appearance: especially in exposed projects, it has a modern effect.
- Corrosion resistance: especially the galvanized type in wet environments.
- Noise reduction: round design and solid structure reduce noise and vibration. Cost-effective: lower production and installation costs than traditional square channels.
Space: Square fits better in tight spaces, but spiral is more suitable for large and exposed projects.
Purchase and installation tips
- Suitable material: choose aluminum for wet environment, steel for hygienic environment, and galvanized for general use.
- Dimensions: Choose the diameter and length based on the required air flow and project standards.
- Connections: Use quality couplers, flanges, and dampers to reduce leakage.
- Insulation: To reduce energy loss, consider elastomeric or similar insulation.
- Professional installation: the installation should be done by a specialist to prevent leakage and subsequent problems.
- Price: The price depends on the material, thickness, diameter, and volume of the order.
- Brand: Among the best reputable brands in the country, Kolak Fan brand is the flagship of the spiral channel production field.
To inquire about the exact price, you can contact suppliers and consultants in the field of sales of industrial hoods in the country, such as Kolak Fan.
09124598284
09121865671
09177002700
- Kolak Fan Technical Engineering Company is the first and largest manufacturer of all kinds of industrial hoods in the country, in Shiraz and the south of the country, it provides production services of all kinds of industrial ventilators, industrial hoods, spiral channels, exhaust fans and centrifugal fans.
- https//:kolakfan.ir


