Products Description
The direct drive HVLS fan puts the torque of a permanent-magnet synchronous motor straight onto the aviation aluminum-magnesium alloy blades, instead of routing it through an asynchronous motor plus a gearbox. That single change removes the meshing gears, couplings and oil-filled transmission that a geared HVLS fan depends on. With no mechanical transmission linkage, the run is quieter and smoother: sine-wave output gives jerk-free start and stop, and the speed-tracking restart brings the fan back up gently without a full stop. Enamel-coated pure copper windings and double-row angular-contact bearings carry the load directly, and the 3D convection cooling holds temperature rise low enough to prevent demagnetization.
When a buyer compares direct drive against geared transmission, the real question is who owns the long-run consistency of the rotor assembly. We answer that with batch-production consistency across the line: every unit is 100% tested before shipment, and the same structural drawings, steel sheets and bearing spec are repeated order after order, so a fan bought for a second bay behaves like the first one. Combined with OEM / ODM support, this means a direct-drive program can roll out across multiple facilities without drifting in noise, coverage or mounting envelope.
Specifications
|
Parameter |
Specification |
|
Transmission |
Direct drive, no gearbox or coupling |
|
Blade diameter |
2000–7300 mm |
|
Blade count |
5–8 |
|
Motor power |
0.4–1.8 kW (1.5 kW / 750 W typical) |
|
Max speed |
55–120 RPM |
|
Air volume |
2,560–15,000 m³/min |
|
Coverage |
50–920 m² |
|
Power input |
3-phase 380 V or single-phase 220 V, 50/60 Hz |
Applications
Production lines that need constant airflow
direct-drive torque lets the fan hold its slow, steady RPM without gear slip, so airflow over assembly stations stays even across a shift.
Noise-sensitive areas adjacent to offices
with no meshing gears and heat-resistant silent bearings, the fan runs quietly enough to sit near waiting halls or control rooms.
Refrigerated or temperature-stratified spaces
by eliminating hot/cold layers from roof to floor, it keeps the zone uniform without the drag of a geared transmission.
Customization
- OEM / ODM and private label; manufacturing to customer drawings or prototypes.
- Blade diameter 2000–7300 mm, 5–8 blades; motor power 0.4–1.8 kW.
- Input: 3-phase 380 V or single-phase 220 V, 50/60 Hz.
- Clamped installation on roof structural beams, minimum 4.5 m above floor.
Packaging & Transportation
Fully tested units are packed in fumigation-free plywood wooden cases; trade terms EXW, FOB, DDP and CIF are supported.
FAQ
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