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Reinraum HVAC und Luftbehandlung Ausrüstung
Tube-Axial - Flow-Fan
A high-volume cylindrical fan using an adjustable-pitch axial impeller to move air through straight ducts with low-to-medium system resistance.
- High-Volume Axial Airflow
- Adjustable-Pitch Airfoil Blades
- External Motor Cooling
- Rigid Flanged Tube Casing
Produkteinführung
The tube-axial flow fan uses an aluminum airfoil impeller centered inside a close-clearance galvanized steel cylinder. The blades accelerate air parallel to the shaft, making the fan suitable for large airflow duties where a full centrifugal scroll is unnecessary. An external motor and shaft arrangement leaves the duct bore comparatively open, protects the motor from the conveyed air and gives technicians direct access to the drive without removing the cylindrical casing from the duct.
Key Features
A close, even tip clearance reduces bypass at the blade ends and supports repeatable axial performance.
The hot-dip galvanized cylindrical shell resists corrosion and maintains flange alignment under duct loads.
An externally mounted motor and bearing frame keep heat-producing drive components outside the airflow passage.
Kunden Produktbedenken
High-airflow systems need a compact fan with low pressure loss, but poor blade selection or uneven tip clearance can cause noise and reduced output.
A centrifugal fan adds unnecessary footprint and turning losses to a nearly straight low-resistance duct.The axial impeller moves air in the duct direction and fits within the circular passage without a scroll casing.
A fixed propeller cannot be matched closely when the final airflow duty changes during design.Adjustable blade pitch provides a practical way to select the required pressure and volume within the fan size.
Motor heat and dust exposure shorten service life when the motor sits directly in the exhaust stream.The external motor frame removes the motor body from the conveyed air while transmitting power through a protected shaft.
Uneven casing geometry creates variable blade-tip clearance and local turbulence.A rolled and reinforced tube maintains a concentric bore around the balanced aluminum impeller.
Typische Anwendungen
Large-volume cleanroom general exhaustMechanical-room general heat exhaustSupply-air transfer between low-resistance zonesIndustrial process cooling and drying ductsLongitudinal ventilation in technical corridors
Technische Parameter
Representative construction ranges for an external-motor tube-axial fan used in high-volume ventilation are provided below.
| Core Material | Die-cast aluminum airfoil blades and hub inside a reinforced hot-dip galvanized steel tube |
|---|---|
| Panel Dicke | 2.0-4.0 mm rolled cylindrical casing thickness |
| Effektive Breite | 450-1600 mm nominal clear bore diameter |
| Maximale Länge | Up to 2800 mm overall length including the external motor support frame |
| Stahl facing Dicke | 2.0-4.0 mm galvanized steel shell and spun flange material |
| Kerndichte | Approximately 2680-2720 kg/m³ for the cast aluminum impeller components |
| Thermische Leitfähigkeit | Approximately 200-235 W/(m·K) for the aluminum blade and hub alloy |
| Oberfläche Finish | Hot-dip galvanized casing with passivated aluminum impeller and blue protective motor coating |
| Gemeinsamer Typ | Rolled welded tube with bolted end flanges, keyed impeller hub and externally supported drive shaft |
| Customisierung | Verfügbar je nach beabsichtigter Anwendung und Betriebsumgebung. |
Verfügbare Optionen
Fixed-pitch or adjustable-pitch aluminum impellerDirect-drive, belt-drive or external-coupled motorInlet bell, safety guard and flexible duct connectorsReversible-flow blade and vertical mounting arrangement
Planning a Tube-Axial Flow Fan specification?
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