Products Description
An aluminum alloy blade HVLS fan is defined by its blade material: the swept blades are made of aviation-grade aluminum-magnesium alloy, which is light enough for a large rotor to start and stop gently yet stiff enough to hold an airfoil shape under load. That stiffness matters because a flexible blade loses its aerodynamic angle across the sweep; the alloy keeps the profile true, and the airfoil shape together with a streamlined tail wing minimizes drag so the Nord integrated gear-motor does not waste torque bending weak blades. The fan runs near 50 rpm, pushing a vertical air column that spreads into a 1–3 m high horizontal layer covering 2,000+ m², with air velocity adjustable from 1 to 5 m/s. A Danfoss or ABB variable-frequency drive governs speed under high temperature, dust and oil fume, dual-row deep groove ball bearings stabilize the shaft and protect the gear oil seal, and the safety system uses high-strength bolts, 1,000 kg dual-protection wire ropes, a safety ring and VFD auto stop.
Because blade material and geometry directly affect performance, our in-house R&D team supports the buyer's structural choice: when you specify a diameter or blade count for an aluminum-alloy-bladed fan, the team reviews the load on the Nord gear-motor and the mounting structure before production. That engineering support is what lets a light-alloy blade disc scale safely up to the largest diameters without overloading the drive.
Specifications
|
Parameter |
Specification |
|
Blade material |
Aviation aluminum-magnesium alloy |
|
Blade diameter |
2000–7300 mm |
|
Blade count |
5–10 |
|
Motor power |
0.55–1.5 kW |
|
Max speed |
55–100 RPM |
|
Air velocity |
1–5 m/s adjustable |
|
Air volume |
900–18,700 m³/min |
|
Coverage |
55–1,150 m² |
|
Weight |
75–165 kg |
Applications

Coastal or humid industrial spaces
aluminum-magnesium alloy resists the corrosion that would rust steel blades over time.
High-cycle facilities where light start-stop matters
the light rotor places less inertial load on the gear-motor each cycle.
Open halls where blade rigidity affects airflow
the stiff alloy airfoil holds its shape, keeping airflow consistent across the whole disc.
Customization
OEM/ODM and private label, built from customer drawings or prototypes.
Blade diameter 2000–7300 mm and blade count 5–10.
380 V three-phase or 220 V single-phase supply.
Mounting on H-beam, I-beam, RC square beam or round tube.
Packaging & Transportation
Each fan is packed in fumigation-free plywood wooden cases, fully tested before shipment, and shipped under EXW, FOB, DDP or CIF.
FAQ
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