ER & DR Short Cased Axial Fans

ER & DR Short Cased Axial Fans

For Increased Air Volume Rates in Low Pressure Systems

Manufacturing Features:
Short depth cased axial fans manufactured from galvanised sheet steel.
Electrostatically applied powder plastic coating.
Flow rates up to 33000m3/h.
Impeller diameter: 200-1000mm.
Asynchronous external rotor motor.
Universally usable in all installation positions.
Speed is variable using auto transformers.

High efficiency short cased axial fans 

Suitable for Low Pressure Systems

The ER and DR series of short cased axial fans featuring double flange ring and pipe sleeve are a versatile component used in various installation positions within low pressure duct systems for air conditioning, cooling and drying applications.

Aerodynamically Designed Blades for Increased Air Volume Rates

ER & DR axial fans feature aerodynamically shaped blades designed to move large volumes of air. They can provide precise measures of increased airflow rates up to 33,000 m³/h and are available in impeller sizes 200mm up to 1000mm.  

Available Fan Types

Pipe sleeve with double-sided standard flange for pipe installation.

ER range - single phase double flanged axial fans
DR range - three phase double flanged axial fans

Suitable Applications

General ventilation and extraction, fume extraction, ventilation for cooling; within factories, workshops, warehouses, and other commercial premises.


The high-performance axial fans have aerodynamically shaped blades:

Size from 200mm - 300mm are made from painted and galvanised steel.
Size from 315 - 630-6 are made from plastic.
Size from 630-4 to 1000 are made of die-cast aluminium.


Motors from size 200 to 300 offer IP44 protection.
Motors from Size 315 to 1000 offer IP54 protection.

Technical Data

The ER & DR range of short cased axial fans feature a space saving external rotor motor used with moisture protection. The motors with built-in ball bearings, are designed with thermal overload protection and available with an ingress protection rating of IP44 or IP54.

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