HVLS Ceiling Fan
Commercial Ceiling Fan
For rooms under about 7 m where the fan is part of the interior: 330 m2 of coverage, under 38 dB, and a bronze airfoil blade that does not look like plant equipment.
Industrial HVLS Ceiling Fan 3 m to 7.3 m
A direct-drive IE5 fan that covers up to 1,700 m2 of high-bay floor on 1.5 kW, with no gearbox and no oil change for the life of the installation.
HVLS Ceiling Fan
Product Overview
The Diamond industrial ceiling fan uses a permanent magnet external rotor motor driving high-strength aviation aluminium magnesium alloy blades, with a high-temperature resistant winglet at each blade tip. It is built for workshops, shopping malls, halls and cattle sheds, where the job is to organise the indoor airflow rather than to chill the air.
Drive is an IE5 standard efficiency permanent magnet synchronous motor. Rated torque is 260 N.m with a maximum of 468.8 N.m, which is what lets the fan turn a 7.3 m blade set slowly instead of turning a small blade set quickly, and is where the claim of more than 30 percent energy saving comes from. The fan covers up to 1,700 m2 at wind speeds between 1 and 5 m/s, runs below 38 dB and is quoted as free maintenance with a 20-year service life.
It mounts on cement beams, I-beams and square steel structures, which covers almost every industrial roof we are asked about.
Key Benefits
What This Product Changes
1
One fan instead of a floor full of them
Coverage of up to 1,700 m2 per fan means a plant that would need dozens of drum fans needs a handful of ceiling fans, with a fraction of the motors to power and clean.
2
No gearbox means no maintenance schedule
The direct drive permanent magnet motor has no reduction gearbox, so there is no lubricating oil to change and no oil to drip onto product below. That is the basis of the free-maintenance and 20-year service life figures.
3
Quiet enough for a shift to work under
Under 38 dB at the fan, so tannoy announcements, machine alarms and conversation still work on the floor.
4
Destratification in winter as well as cooling in summer
The same fan run slowly in the cold months mixes warm air trapped at the roof back down to the floor, which is where the heating savings come from rather than from the cooling effect.
Problems It Solves
The Situations That Lead People Here
1
Heat sits at the roof while people work at the floor
In a high-bay building the warmest air is the air nobody is standing in. A wide slow column of air pushed to the floor and outward along it puts that air back into circulation.
2
Air conditioning costs more than the building can justify
Cooling the air in a 9 m high warehouse means cooling a huge volume that nothing occupies. Moving air instead changes what the body feels without changing the air temperature.
3
Dozens of small fans are a maintenance job in themselves
Every drum fan is a motor, a guard, a cable and a trip hazard. Consolidating into a few ceiling fans removes the floor clutter and the replacement cycle.
4
Odour and moisture collect in corners
Continuous circulation stops pockets of stale, damp air forming behind racking and in bays with no cross draught, which matters in warehouses where humidity damages stock.
Technical Features
How It Is Built
1
IE5 PMSM external rotor motor
Direct drive with its own EMU configuration, giving 260 N.m of torque and a maximum of 468.8 N.m, with air volume increased by more than 30 percent against the previous generation.
2
Aluminium magnesium alloy blades
Extruded and stretched airfoil blades with an energy saving tail, high strength and good toughness at low weight. The T5 plus bright surface oxidation treatment raises corrosion and oxidation resistance.
3
Winglet at the blade tip
The tail eliminates the vortex that forms at the end of the airfoil, which stabilises the fan and keeps the airflow closer to the aerodynamic ideal.
4
Four-button controller rated IP66
No position vector control with centralised operation. Start, stop, speed up and slow down, anti-electromagnetic interference and anti-radiation, able to sit in a high-temperature harsh environment.
5
Protection built into the drive
Over-voltage, under-voltage, voltage loss regulation, current, phase loss, overload, collision, overheating, lightning and abnormal protection are all handled by the controller.
6
Five levels of security guarantee
Integrated motor bracket against falling, anti-off-plate break-off structure, tensile blade with internal reinforcement, wire rope traction device, and automatic power-off protection on accidental contact.
Specifications
Data Sheet
Every figure below comes from our own specification. Where a value depends on the diameter or the duty it is written as TBC rather than invented, and it is confirmed on the specification sheet issued with your quotation.
| Fan diameter | 3 m (10 ft), 3.7 m (12 ft), 4.3 m (14 ft), 5 m (16 ft), 6.1 m (18 ft), 6.7 m (20 ft), 7.3 m (24 ft) |
|---|---|
| Motor power | 0.37 kW, 0.75 kW, 1.1 kW, 1.5 kW |
| Motor type | IE5 permanent magnet synchronous motor, external rotor, direct drive |
| Rated torque | 260 N.m, maximum 468.8 N.m |
| Wind speed range | 1 to 5 m/s |
| Coverage area | Up to 1,700 m2 |
| Noise | Under 38 dB |
| Controller protection class | IP66 |
| Blade material | Extruded and stretched aluminium magnesium alloy, T5 plus bright surface oxidation |
| Mounting | Cement beam, I-beam, square steel structure |
| Service life | Quoted at 20 years, free maintenance |
| Energy saving | More than 30 percent stated against the previous generation |
| Blade count | TBC per diameter, confirm at quotation |
| Net weight | TBC per diameter, confirm at quotation |
Materials
- Blades in aviation-grade aluminium magnesium alloy, extruded and stretched rather than pressed
- T5 heat treatment plus bright surface oxidation on the blade surface
- Integrated cast motor bracket and bolted blade clamps
- Wire rope traction device as a secondary retention on the assembly
Quality Control
- Stator withstand-voltage testing on every motor before assembly
- Dynamic balancing of the blade set, because vibration is what kills bearings on a fan that runs all shift
- Functional test with the controller fitted before crating
- Five separate mechanical retention features checked as part of final assembly
Customisation Options
- Diameter selected from 3 m to 7.3 m to suit clear height and obstruction spacing
- Motor power matched to diameter and duty across 0.37 kW to 1.5 kW
- Blade and housing colour to your specification on production orders
- Nameplate branding for distributors and installers
- Mounting adapted to cement beam, I-beam or square steel structure; pole mount where there is no roof structure
Comparison
How It Compares
Where the industrial ceiling fan sits against the other options a buyer is usually weighing.
| Against the commercial ceiling fan | Same motor principle, larger blades. Choose the industrial range above roughly 6 m clear height or where coverage per fan matters more than fan appearance. |
|---|---|
| Against drum and stand fans | The floor fan wins where nothing can be hung from the roof, or where one workstation needs a strong local draught. The ceiling fan wins on coverage, noise and floor space. |
| Against air conditioning | An air conditioner lowers air temperature in a sealed volume. An HVLS fan changes what people feel and costs a fraction of the power in a building too tall to seal economically. |
| Against evaporative cooling and water curtains | Evaporative systems add humidity, which rules them out for furniture coating, food processing and dry storage. The fan adds none. |
Use Guide
Getting It Right on Site
1
Position by clear height and obstruction
Fan spacing follows clear height and what breaks up the space. Racking, crane rails and partitions all cut the effective coverage, so a layout drawing beats a rule of thumb.
2
Have an electrician do the final connection
Installation normally takes one to two working days with a scissor lift and two or three people, but the supply connection should be made by a licensed electrician.
3
Run slow in winter, not just fast in summer
A low speed setting through the cold months mixes roof-level warm air back to the floor. That is where heating savings come from.
4
Clean the blades on a schedule
Dust on an airfoil changes its behaviour. In dusty plants clean the blades regularly and check the fixing bolts and the junction box wiring at the same time.
Related Products
Others in the Same Conversation
HVLS Ceiling Fan
HVLS Floor Fan
Big Movable Fan
A wheeled HVLS fan that throws air up to 28 m in open space, for bays where nothing can be hung from the roof and the cooling has to follow the work.
Wall Fan
Industrial Exhaust Cooling Fan
One-piece formed housing with extra-thick zinc coating, automatic shutters and a bottom drain, for negative-pressure ventilation in hot, humid and smelly buildings.
Further Reading
Guides That Touch This Product
Buying Guide
A Buyer's Guide to HVLS Fans
HVLS fans measure from roughly 2 m to 7.3 m across and move air by blade area rather than tip speed. This guide covers what they...
Industry Article
Warehouse Ceiling Fans and Air Circulation
Warehouse ceiling fans are a simple and cost-effective way to improve air circulation and reduce the need for air conditioning,...
Maintenance Guide
How to Maintain the Motor of an HVLS Fan
Normal operation and monitoring are not enough on their own. Regular inspection is what catches faults early and keeps an...
Questions
Questions About the Industrial Ceiling Fan
Up to 1,700 m2 for the largest diameter in an open building. Racking, mezzanines, partitions and crane rails all reduce that, which is why we ask for the building layout before quoting a fan count rather than dividing floor area by a fixed number.
That depends on the clear height below the rail and on the crane travel. Send the clear height to the underside of the rail and the rail spacing and we will confirm which diameter can be hung and whether the fans need to sit between bays rather than centrally.
Tell us the grid voltage, phase and frequency on site and the fan is supplied to match. Do not order for a transformer if you can avoid it; a motor wound for your supply is the simpler installation.
Under 38 dB at the fan. The whole point of the low-speed high-volume principle is that air is moved by blade area rather than by tip speed, and tip speed is what makes noise.
There is no gearbox and no oil change, which is why it is sold as free maintenance across a 20-year service life. Ongoing work is cleaning the blades, checking the fixing screws and end cover screws, and inspecting the junction box wiring for loose or burnt terminals.
Lead time depends on the diameter mix and on whether the blades and housing are being sprayed in a custom colour, which adds a full spray cycle. Fans ship crated and consolidate with exhaust fans and spares into one container. Confirm the destination port with the enquiry and freight is quoted with the goods.
Yes. Single units are accepted and are the sensible way to test the coverage claim in your own building before committing to a full layout.
Price the Industrial Ceiling Fan for Your Site
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