The Leader in Factory Cooling & Industrial Ventilation

Industrial HVLS Fan
(Big Fan)

Benefits

Create cooling effect on workers over a large
Reduces condensation on products and packing
Eliminates rust on metal parts
Dissipates harmful gases

How HVLS Fans Work?

How HVLS Fans Work?
The HVLS Fan (Big Fan) is capable of sending large volumes of air downwards with its wide blade width and unique blade profile, all while operating at a low speed of up to 50 rpm. When the slow-moving air column hits the floor, it changes course and creates a ‘floor jet’ that moves outward in a 360° direction. 
It continues to move along on ground level until it meets the walls, changing direction once again and then moving vertically upwards. This tremendous movement of air covers most of the workspace and ensures that all personnel and equipment are cooled down.
A single HVLS Fan can create a cooling effect that has a large coverage of 1400m². It can also reduce humidity, moisture, condensation and hazardous gases in the workspace - creating a safer and more comfortable working environment for workers.

HVLS Fans Only Performance

Feel up to 5 °C cooler
The HVLS Fan (Big Fan) creates air movement that can reduce the perceived temperature felt by a person. This effect allows the worker to feel cooler without having the air temperature being reduced - much like the experience of feeling a gust of wind or a sea breeze on a hot day.

7.3m Fan Zone Performance

Zone
Avg. Velocity
∆TPTD
A
3.0 - 3.5 m/s
4 - 5˚C
B
2.0 - 2.5 m/s
3 - 4˚C
C
0.5 - 1.0 m/s
2 - 3˚C
∆TPTD = Perceived Temperature Drop@ 8m Fan Height
A B C 14 m 28 m 40 m

3.1m Fan Zone Performance

Zone
Avg. Velocity
∆TPTD
A
2.0 - 2.5 m/s
4 - 5˚C
B
1.0 - 2.0 m/s
3 - 3.5˚C
C
0.5 - 1.0 m/s
2 - 3˚C
∆TPTD = Perceived Temperature Drop@ 8m Fan Height
A B C 7 m 12 m 18 m

HVLS Fans + Evap Cooler Performance

Feel up to 12 °C cooler
The HVLS Fans (Big Fan) can also be complemented with Evaporative Cooling technology. By supplying the Big Fan with cool air produced by evaporative cooler units, the perceived temperature drop effect felt under this system can be improved by up to 12° Celsius. The performance of the evaporative cooler is dependent on the outside air temperature and relative humidity - which can be estimated in the following table:
Ball Jet Air Diffuser
Evaporative Cooler
Evaporative Cooler & HVLS Fan Controller
HVLS Fans (Big Fan)

Visit Our Official Site

We invite you to learn about Waterline Big Fan more intimately.

Click For More Info

Unique Fan Blade Design

Waterline HVLS Fans (Big Fan) have a unique blade contour design that varies along its length. This helps create a more complete, more encompassing airflow coverage beneath the fan.

The tapered & twisted design of the fan blade compensates for the substantial velocity differences that stretch from one end of the blade to the other. It ensures the blades produce the same amount of airflow across the entire length of the blade. (See below diagram).
Contrast this to the commonly found extruded blade designs of other makes where the blade contour is uniform along the length of the blade, the area directly beneath the center of the fan will have much lower air velocity. This causes an empty air ‘hole’ effect below the fan. (See below diagram)

Uniform Contour Blade Design

When blade contour is uniform along the length of the blade as in the case of aluminum extrusion design, an area directly below the fan has no airflow being felt.

Tapered & Twisted Blade Design

Compensates for the substantial velocity differences that stretch from one end of the blade to the other. As a result, air flow is even throughout the entire area covered.

A Technological Marvel in Fan Assembly Design

The precision-milled fan hub and fan strut pieces ensure a flawlessly fitted connection that prevents excessive fan blade movement. A uniquely designed concave-convex joint between the fan hub and fan strut also boosts security while a vibration dampening material is used to eliminate stress on the fan hub. The result is a very strong and heavy duty blade-to-hub connection that makes the fan blade impossible to depart from the fan assembly.

Fan Strut Fan Hub Fan Blade Bolt & Nut Concave/Convex Joint Vibration Dampening Bushing

FAN STABILIZATION WIRES

4 Guy wires are installed to keep the fan stable without excessive oscillation during operation.

ANTI-DROP STEEL CABLE

In the unlikely event that the fan blade is dislodged, it will be secured to the fan assembly by this Anti-drop steel cable.

SAFETY LOOP-OVER WIRES

2 thick multi-strand steel wire is used to loop the entire fan over the roofing structure to prevent it from being dislodged.

DC Motor Fan
Series BDC

HVLS Fans - DC Motor

Specifications & Performance

Fan Diameter 7.3 m & 3.1 m

Model
BDC-7.3
BDC-3.1
Fan Diameter
7.3 m
3.1 m
Blade Type
Fan Diameter 7.3 m ,
2-ply aluminum 5052
1.5 mm thick.
Fan Diameter 3.1 m,
1-ply aluminum 5052
2.5 mm thick.
Maximum Speed
45 rpm
100 rpm
Air Flow
780,000 m³/h
203,800 m³/h
Air Covered Area
1,400 m²
280 m²
Noise Level
40 dB (A)
35 dB (A)
Drive & Motor System
F170
F13
Motor Type
Brushless Direct Current (BLDC)
Brushless Direct Current (BLDC)
Power Supply
50 Hz/3Phase/380V
50 Hz/1Phase/230V
Power Supply
Membrane keypad HMI
Membrane keypad HMI
Customer Load Center (CLC) Fire Emergency Cut-Off Human Machine Interface (HMI) Electronic Driver DC Motor DC Series

AC Motor Fan
Series BAC

HVLS Fans - AC Motor

Specifications & Performance

Fan Diameter 7.3 m & 3.1 m

Model
BAC-7.3
BAC-3.1
Fan Diameter
7.3 m
3.1 m
Blade Type
Fan Dia 7.3 m : 2-ply aluminum 5052 1.5 mm thick.
Fan Dia 3.1 m : 1-ply aluminum 5052 2.5 mm thick.
Maximum Speed
45 rpm
100 rpm
Air Flow
780,000 m³/h
203,800 m³/h
Air Covered Area
1,400 m²
280 m²
Noise Level
40 dB (A)
35 dB (A)
Motor kW
1.5 kW
0.35 kW
Power Supply
50 Hz, 380 V
50 Hz, 380 V
Geared Motor Make
Nord of Germany
Nord of Germany
Frequency Inverter Make
Danfoss
Nord of Germany
Speed Controller Gear Reducer AC Motor Customer Load Center (CLC) AC Series

Our Customers

Consult With Our Engineers Today!

You may also like these products

The only alternative to industrial air conditioning - effective and economical
See More
Point & Shoot flexibility - determine how air flows through your space.
See More
Exhaust hot & contaminated air out from your factory roof with this motorized exhaust fan.
See More

Get in Touch

th-largecheck-square-ochevron-downfacebook-squarephonebarsyoutube-square