UNOBOX Square Duct Centrifugal Fans

UNOBOX Square Duct Centrifugal Fans

Ideal for Commercial kitchens

Manufacturing Features:
Centrifugal fan with backward curved impeller.

Box made up of an aluminium frame and insulated, galvanised steel side panels. 
Flow rates up to 18,000 m³/h.
Size: 355 - 710 mm (impeller diameter).
Backward curved impellers.
Speed is variable using auto transformers.
No condensate formation due to 2-chamber aluminium profile.
Discharge in any direction possible.
Extremely low noise.

UNOBOX is a simple concept of a cube-shaped fan box that can be mounted in any position and is

Ideal for Installation in Ducted Systems and Ductwork

The UNOBOX range is fitted with high efficiency backward curved centrifugal fans powered by external rotor motors. UNOBOX casings are made of an aluminium frame and insulated, galvanised steel side panels. The side panels are removable so the discharge is possible in any direction.

Provides Low Noise and Efficient Solutions

Due to its reinforced box construction and panels insulated with non-combustible, sound and heat-insulated glass wool mats, UNOBOX fans can offer a low noise, efficient solution. Typical applications include commercial and industrial kitchen ventilation, supermarket ventilation, workshop extraction, swimming pool ventilation and warehouse ventilation.

Available Fan Types

UNOBOX: Centrifugal fan with backward curved impeller

Suitable Applications

Designed for inline installation, they are suitable for:
•Commercial and industrial kitchen ventilation

•Supermarket ventilation
•Workshop extraction
•Swimming pool ventilation
•Warehouse ventilation
•Garage ventilation

Available on Request

•Versions with Electronically Commutated (EC) motors
•Versions for high temperatures (+110°C) ideal for extracting hot air from commercial kitchens

Technical Data

Unobox fans up to size 450mm have backward curved centrifugal impellers made of plastic with galvanised steel support plates. Fans from 500mm have backward curved high-performance  impellers made of aluminium. The impellers are mounted directly on the rotors of the external rotor motors and are dynamically balanced on two levels with the rotor according to quality level G 2,5 / G 6,3 as per DIN ISO 21940-11. UNOBOX units are suitable for outdoor installation with appropriate accessories.

Fan Type Voltage
Power (kW)
Current (A)
Max Temp
IP Rating
GKHM 355-CIG.102.5HF IE Gen3 (IE5) 3~ 380-480 50 / 60 2.33 3.7 at 400V 3120 40 IP54
GKHM 400-CIG.114.6FF IE Gen3 (IE5) 3~ 380-480 50 / 60 4.48 7 at 400V 3170 40 IP54
GKHM 450-CIG.128.6IF IE Gen3 (IE4) 3~ 380-480 50 / 60 5.9 9.05 at 400V 2950 40 IP54
GKHM 500-CIG.143.6NA IE Gen3+ (IE4) 3~ 380-480 50 / 60 7.48 11.4 at 400V 2625 40 IP54
GKHM 560-CIG.160.6NA IE Gen3+ (IE4) 3~ 380-480 50 / 60 6.85 10.7 at 400V 2125 40 IP54
GKHM 630-CIG.180.6NA IE Gen3+ (IE4) 3~ 380-480 50 / 60 5.1 7.88 at 400V 1580 40 IP54