EC Axial fans (Type: AKFG)
Properties
- flow rates up to 32,000 m³/h
- size: 500 - 1000 mm (impeller diameter)
- highly efficient EC technology
- sickle formed profiled impellers made of cast aluminium
- integrated control system (EC controller)
- speed is 100% infinitely variable
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Properties
Sickle formed profiled impellers made of cast aluminium result in a very low noise spectrum. The main concern was to keep noise emission low in the main range of application of the fan, while having an optimal performance curve with the long and short inlet cones.
Guard
Serves as contact protection and for mounting the fan onto the inlet cone.
Inlet cones
External dimensions according to customer requirements. If necessary, please submit a drawing.
Downloads
Axial fans (Type: AKFE / AKFD)
Properties
- flow rates up to 24,000 m³/h
- size: 500 - 1000 mm (impeller diameter)
- asynchronous external rotor motor
- sickle formed profiled impellers made of cast aluminium
- terminal box design; alternatively, lateral or axial cable outlet
- protection class IP54, thermal class F
» Design and Downloads
Properties
Sickle formed profiled impellers made of cast aluminium result in a very low noise spectrum. The main concern was to keep noise emission low in the main range of application of the fan, while having an optimal performance curve with the long and short inlet cones.
Guard
Serves as contact protection and for mounting the fan onto the inlet cone.
Inlet cones
External dimensions according to customer requirements. If necessary, please submit a drawing.
Downloads
Axial fans (Type: AKSE / AKSD)
Properties
- flow rates up to 12,000 m³/h
- size: 315 - 630 mm (impeller diameter)
- asynchronous external rotor motor
- sickle-shaped impellers
- terminal box design; alternatively, lateral or axial cable outlet
- protection class IP54, thermal class F
» Design and Downloads
Properties
Sickle formed axial impellers result in a very low noise spectrum. The main concern was to keep noise emission low in the main range of application of the fan, while having an optimal performance curve with the long and short inlet cones. The impellers are designed as follows:
- size from 350 to 450
- made of sheet steel
- size from 450N to 630
- of aluminium sheet
Guard
Serving as contact protection and for mounting the fan onto the inlet cone.
Inlet cones
External dimensions according to customer requirements. If necessary, please submit a drawing.
Downloads
EC Axial fans (Type: GQ)
Properties
- flow rates up to 33,000 m³/h
- size: 200 - 1000 mm (impeller diameter)
- highly efficient EC technology
- small depth
- sickle formed profiled impellers
- integrated control system (EC controller)
- speed is 100% infinitely variable
» Design and Downloads
Casing
The casings of the EC axial fans are manufactured from galvanised sheet steel with white powder plastic coating and protection guard with black powder plastic coating.
Impellers
The EC axial fans have aerodynamically shaped blades:
- size 200
- made of plastic
- size from 250 to 400
- made of black painted and galvanised steel sheet
- size from 450 to 1000
- made of aluminium
Electrical connection
The electrical connection can be made at the motor size G9, V8, GD84 and GD112 (230V) via lead out connection cable and for the motor size GD112 (400V) and GD150 directly via cable gland at the integrated terminal box of the motor. The integrated motor protection is signaled via alarm relays at size 350 to 1000. For the size 200 to 300 a tachometer output is available. In the version „open-loop control“(standard) the speed is adjustable via 0-10V Signal or a potentiometer (optional).
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Axial fans (Type: ER/DR and EQ/DQ)
Properties
- flow rates up to 33,000 m³/h
- size: 200 - 1000 mm (impeller diameter)
- asynchronous external rotor motor
- small depth
- universally usable in all installation positions
- speed is variable using auto transformers
» Design and Downloads
Casing
The casings of the high-performance axial fans are manufactured from galvanised sheet steel and get an electrostatically applied powder plastic coating.
- model EQ/DQ:
- with square wall plate
- model ER/DR:
- pipe sleeve with double-sided standard flange for pipe installation
Impellers
The high-performance axial fans have aerodynamically shaped blades:
- size from 200 to 300
- made of painted and galvanised steel sheet
- size from 315 to 630-6
- made of plastic
- size from 630-4 to 1000
- made of die-cast aluminium
The impellers or blades are mounted directly on the rotor 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.
Motors
- size from 200 to 300
- motor protection class IP44
- size from 315 to 1000
- motor protection class IP54
External rotor motors are used with moisture protection, with built-in ball bearings, and are designed with thermal overload protection. The drive by the external rotor motor provides a space-saving, compact and attractive design. The motor sits inside the impeller and is thus optimally cooled. For this reason, a 100% variable speed control can be guaranteed. Only well-dimensioned ball-bearings, fitted on both sides and with a long-life lubricant, are used. Both ball-bearing seats are ground to high precision in one work step to eliminate any vibration. External rotor motors are also characterised by an extremely low starting current. The windings comply with thermal class F. In addition, the windings have standard moisture impregnation.
Electrical connection
The motors are fitted with an outgoing cable. The electrical connection is made via an IP44 terminal box which is supplied loose.
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Axial fans (Type: ANDB)
Properties
- flow rates up to 80,000 m³/h
- pressure rates up to 1.200 Pa
- size: 315 - 1000 mm (impeller diameter)
- casing made of hot-dip galvanized steel
- blade angles are adjustable and made of aluminum
- three-phase IEC standard motors
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