High volume, low speed
Blades several metres long turn at only 55–80 rpm yet push thousands of cubic metres of air a minute.
Cooling systems
Keep factories, warehouses and tall halls comfortable with YUSHI big fans of 3.6–7.3 m, evaporative coolers and ventilation, with structural survey and engineered installation.
What an HVLS big fan does
HVLS stands for High-Volume, Low-Speed: blades several metres across turn slowly but move a large volume of air through tall, wide buildings.
Down to the floor, then outward
A wide column of air reaches the floor and spreads across the working area, so people feel steady air movement.
Mixes hot air under the roof
Hot air trapped under the roof is circulated and mixed with the air below. It moves air rather than chilling it like air conditioning.
See the airflow, model by model
Switch the fan on and off, change speed and pick a model to see blade size, reach, specifications and a rough fan count for your area.
- Power
- 0.63 kW
- Max speed
- 55 rpm
- Airflow
- 12,268 m³/min
- Coverage
- 700 m²
- Blades / weight
- 6 · 67 kg
- Other
- Noise <42 dB
≈ 3 × XY-PA61 · about 1.89 kW
Rough estimate from the manufacturer’s stated coverage. The real number and layout depend on height, obstructions and airflow paths after a site survey.
YUSHI AC or DC
Two routes from one manufacturer: AC for the widest spaces, DC where quiet running and low power matter.
YUSHI DC Big Ceiling Fan
Direct drive with no shaft, gear or gearbox
- 3.6–6.1 m blades covering 300–700 m² each
- 0.28–0.63 kW · under 42 dB
- Manufacturer states 50–70% further energy saving and longer life
YUSHI AC Big Ceiling Fan
Geared 2 HP (1.5 kW) motor on AC 380 V
- 7.2–7.31 m blades covering 1,600–1,764 m² each
- 13,500–14,000 m³/min airflow
- Aluminium-magnesium alloy body and blades
The manufacturer states one big fan can replace 40–50 small 170–350 W fans while using over four times less electricity; results depend on the building and use. Manufacturer data
Where it fits
Tall ceilings, wide floors and spaces that are not fully air-conditioned.
- Factories
AI-generated setting - Warehouses and logistics
AI-generated setting - Offices and tall halls
AI-generated setting - Schools and canteens
AI-generated setting - Temples and assembly halls
AI-generated setting - Gyms and indoor courts
AI-generated setting
Installation photos from YUSHI (the manufacturer’s references, not DPI projects)
What to plan before installation
A big fan is heavy equipment hung over people at work, so structure and safety planning come first.
Roof structure
A structural engineer checks mounts and load (AC models weigh 136–160 kg). The manufacturer installs with engineers trained in safety standards.
Clearance from obstructions
Set distances from lights, sprinkler heads, overhead cranes and high racking so airflow is not blocked and lights do not flicker through the blades.
Power and control
AC models need 380 V; confirm the DC supply, control panel and speed scheduling.
Fire-alarm interlock
Have the systems designer define fan shutdown on fire alarm and check positions against sprinkler heads.
Maintenance access
Plan lift or scaffold access to inspect mounts, blades and motor on the maintenance schedule.
More cooling and ventilation from YUSHI
Combine with big fans when you need to lower temperature, extract heat or remove fumes locally.
AI-generated concept
AI-generated concept
AI-generated concept
AI-generated concept
AI-generated concept
AI-generated conceptManufacturer sources (checked 31 Oct 2026): YUSHI Big Fan — AC/DC models · YUSHI Big Fan — product range
Why buy your cooling system from DPI
One team from survey, design and supply to installation, testing and after-sales support.
Authorized distributor and certified partner
Equipment sourced through authorized channels, with model advice and the manufacturer’s warranty terms.
Designed from a site survey
Roof height and structure, floor area and obstructions are surveyed before choosing fan size and count.
The whole system, not just devices
Big fans, controls, power, fire-alarm interlock and evaporative or ventilation fans designed as one.
Honest brand advice
YUSHI AC or DC models chosen for area, height, noise and budget.
Tested before handover
Every speed, vibration, mounts and the agreed shutdown tested, with manuals and a maintenance schedule.
Ongoing support nationwide
A Pathum Thani team providing maintenance and technical support across Thailand.
Book a site surveyModels, terms and warranty are specified in each project quotation.
Control the fan, move air across the floor
The control panel sets speed for conditions and stops the fan on the building’s safety conditions.
- Data / signal
- Energy / drive
- Control
Explore each part
Sense conditions
Optional temperature sensing or schedules decide when to raise or lower speed.
- Sense conditions Control panel and drive
- Condition data
AI-generated equipment concepts, not photographs of specified models.
Concept only, not an electrical or structural drawing. Mounting and safety interlocks must be reviewed by engineers.
Before you specify
- Provide roof or truss drawings, clear height and mounting points that a structural engineer can verify for load.
- List obstructions such as lights, sprinkler heads, overhead cranes and high racking to set clearances and fan positions.
- Confirm power supply (the AC models state 380 V), speed control and any fire-alarm shutdown required by the building's systems designer.
Testing & handover
Test every speed setting, vibration, mounts and secondary retention, the emergency stop or agreed shutdown, and hand over manuals, a maintenance schedule and the manufacturer's warranty terms.
Equipment details, compatibility and scope must be confirmed for each project.
Manufacturer references
- YUSHI Big Fan — AC and DC big ceiling fan models and specifications
- YUSHI Big Fan — company, product range and applications
Before you decide
Does a big fan cool the air like air conditioning?
It does not chill the air like an air conditioner. It moves a large volume of air down and outward, so people feel air movement, and it mixes hot air under the roof with the air below. For further temperature reduction, consider evaporative coolers or air conditioning alongside it.
Should I choose an AC or a DC motor?
YUSHI's AC models use a geared motor with blades of about 7.2–7.3 m and the largest stated coverage. The DC models have no shaft, gear or gearbox and are stated by the manufacturer to be quieter and more efficient, which suits noise-sensitive spaces. Choose by area, height, noise and budget.
From survey to support
The same six stages on every project, so the system is ready on handover day.
- 01
Consultation
Understand your goals and requirements
- 02
Site survey
Assess the site and installation conditions
- 03
System design
Plan the right solution for your operation
- 04
Installation
Install equipment and integrate systems
- 05
Testing & handover
Verify performance and train your team
- 06
Maintenance & support
Maintain equipment and provide technical support
Start with your site
Tell us about your space, the systems you need and what you want to improve.