This article's table of contents introduction:
- Summary of the Fan Type
- Detailed Breakdown of the Terms
- Possible Configurations
- Typical Technical Specifications (for a 1200mm fan)
- Important Considerations for Purchase
- Where to Find One
Based on the keywords you provided, it sounds like you are describing a specific type of industrial fan used for air movement or ventilation. Here is a breakdown of what each term means and the likely specifications of the fan you are looking for.
Summary of the Fan Type
You are likely referring to a Large Diameter, High-Volume Axial Flow Fan designed for industrial exhaust, smoke removal, or general air circulation.
- Function: Induced draft (pulling air out) or general circulation.
- Diameter: 1200mm (≈ 47 inches).
- Primary Use: Warehouses, factories, tunnels, commercial kitchens, or emergency smoke extraction systems.
Detailed Breakdown of the Terms
Smoke Exhaust / Induced Draft
- Function: "Induced draft" means the fan is placed at the end of a duct system or on a wall to pull air (or smoke) out of a space, creating negative pressure.
- Application: In case of a fire, these fans clear smoke from escape routes. In industrial settings, they remove fumes, steam, or hot air.
1200mm (Size)
- Diameter: 1200mm (1.2 meters or ~4 feet).
- Implications:
- This is a very large fan.
- It requires a strong motor (often 3-Phase power, e.g., 380V or 460V).
- Airflow is usually measured in Cubic Meters per Hour (CMH) or CFM. A 1200mm axial fan can move 30,000 to 60,000+ CMH (17,500 – 35,000+ CFM) depending on the blade pitch and motor power.
Air Circulation Fan
- Nature: This part of the description suggests it might be a Portable or Wall-Mounted Breezer Fan (also called an "Air Mover" in industrial contexts).
- Difference: While a smoke exhaust fan is often ducted, an "air circulation fan" is usually open, moving air across a large open area (e.g., cooling workers in a warehouse).
Possible Configurations
Because your keywords mix "Exhaust" and "Circulation," you likely have one of these two specific products:
Option A: Heavy-Duty Industrial Exhaust Fan (for Ducting)
- Blade Type: Axial (Propeller) or Centrifugal (Squirrel Cage).
- Housing: Square panel or circular collar for duct connection.
- Motor: Explosion-proof if for smoke/fumes.
- Mounting: Wall-mounted or duct-mounted.
Option B: High-Velocity Portable Floor Fan ("Air Mover")
- Blade Type: Axial with a high-pitch angle.
- Design: Large cage guard on wheels.
- Use: Drying floors, cooling large spaces, general warehouse air circulation.
- Motor: Typically 1-2 HP, single-phase or three-phase.
Typical Technical Specifications (for a 1200mm fan)
| Specification | Typical Value |
|---|---|
| Fan Diameter | 1200 mm (47.2 inches) |
| Airflow | 35,000 – 55,000 CMH (20,000 – 32,000 CFM) |
| Motor Power | 2 kW (3 HP) to 7.5 kW (10 HP) |
| Speed | 720 RPM (Low speed) or 960/1450 RPM (High speed) |
| Voltage | 380V / 415V / 460V (3-Phase) |
| Noise Level | 75 – 85 dB(A) |
| Material | Steel with epoxy/powder coating (for smoke, often stainless steel or galvanized) |
Important Considerations for Purchase
- Voltage: These large fans almost always require 3-Phase Power. Ensure your facility has a 3-phase supply (380V, 415V, or 460V depending on region).
- Motor Type:
- For Smoke Exhaust: Must be rated for high temperature (e.g., 250°C for 2 hours).
- For General Circulation: Standard TEFC (Totally Enclosed Fan Cooled) motor is fine.
- Mounting:
- Panel Fan: Bolts to a wall opening.
- Floor Fan: Has a stand or wheels (requires a heavy-duty base).
- Materials: For smoke exhaust in corrosive or wet environments, look for SS304 (Stainless Steel) or FRP (Fiberglass) blades and housing.
Where to Find One
If you are looking to purchase this fan, search for these specific product categories:
- Search terms: "1200mm industrial exhaust fan," "47 inch wall mounted fan," "heavy duty axial flow fan 1200mm," or "industrial smoke extraction fan 1.2m."
- Common manufacturers: Greenheck, Systemair, Soler & Palau, Air King, or large local industrial fan manufacturers in your region.
Would you like help clarifying which specific style you need (wall-mounted exhaust vs. portable floor circulator) or help with sizing for your specific room dimensions?
