Products Description
The quiet industrial ceiling fan in our DCHVLS permanent-magnet direct-drive line is built for buyers who need HVLS-scale air movement but cannot accept the noise that conventionally comes with it. A gearless PMSM rotor drives the aviation aluminum-magnesium airfoil blades through a stepped motor shaft, removing the gearbox, belt and coupling that are the usual sources of mechanical clatter in large ceiling fans. We pair the motor with high-precision, heat-resistant, heavy-duty silent bearings and a sine-wave electronic driver, which eliminates the stepped magnetic buzz typical of cheaper square-wave variable-frequency drives. The large rotor turns slowly at the blade tips, so aerodynamic noise stays low even at full coverage, while the omni-directional airflow still breaks up hot and cold layers and keeps people and materials comfortable across the floor.
When quiet performance matters on an occupied shop floor, acoustic output is only as dependable as the build behind it. We manufacture directly to your technical drawings and support OEM/ODM and private-label builds, so the silent-bearing configuration and sine-wave drive you approve on the sample stay locked across the whole order. Our in-house engineering team reviews blade pitch, bearing preload and motor-shaft fit against your ceiling load before production, which means the noise level you measure on trial is the noise level you receive on every shipped unit.
Specifications
|
Parameter |
Specification |
|
Blade diameter |
2000–7300 mm |
|
Blade count |
5–8 |
|
Motor type |
Gearless PMSM direct drive, no gearbox |
|
Motor power |
0.4–1.8 kW |
|
Power supply |
3-phase 380 V / single-phase 220 V, 50/60 Hz |
|
Max speed |
55–120 RPM |
|
Air volume |
2,560–15,000 m³/min |
|
Coverage |
50–920 m² |
|
Net weight |
28–128 kg |
|
Installation height |
≥ 4.5 m above floor, clamped to roof beams |
Applications
Open-plan production floors
silent bearings and a gearless drive train keep conversational speech and machine monitoring clear, even when the fan runs at full speed above operators.
Offices or showrooms next to production bays
the low noise signature lets a single large fan ventilate shared spaces without disturbing visitors or administrative staff working nearby.
Gymnasiums and waiting halls
slow, quiet large-rotor airflow keeps occupants comfortable during long stays without the distracting drone of multiple small wall fans.
Customization
- OEM/ODM and private-label builds, with manufacturing carried out to your technical drawings or prototypes.
- Blade diameter from 2000 to 7300 mm and blade count from 5 to 8, matched to your ceiling height and coverage target.
- Power supply configured for 3-phase 380 V or single-phase 220 V at 50/60 Hz, with rated motor power from 0.4 to 1.8 kW.
- Roof-beam clamped mounting supplied for structures with at least 4.5 m clear floor height.
Packaging & Transportation
Units are packed in standard fumigation-free plywood wooden cases, with every fan fully tested and 100% inspected before shipment. We trade on EXW, FOB, DDP or CIF terms to suit your logistics route.
FAQ
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