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products

Fans

We offer a wide range of standard fans for a variety of applications and fans for OEM applications. All Rosenberg fans are equipped with direct driven external rotor motors which are manufactured in-house. The Rosenberg fans offer you fans with decisive advantages in comparison to conventional fans:

  • extremely long service life

  • compact design

  • motor and impeller assembled in one unit

  • the speed is 100% controllable (auto transformers; controller)

  • low start-up current

  • Rosenberg fans are equipped with motor protection through thermal contacts as a standard feature

  • The impellers are balanced on 2 levels according to DIN ISO 1940 (quality grade G2.5).

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AC motors

The drive using an external rotor motor offers space-saving, compact and attractive design. The engine sits inside the impeller and is thus optimally cooled. For this reason, a 100%variable speed control can be guaranteed. V-belts, additional tension bars and motor mounting devices are not necessary. Only well-dimensioned ball-bearings, fitted on both sides and long-life lubricants are used. Both ball-bearing seats are ground to high precision in one work process to eliminate any vibration.
External rotor motors are also characterized by an extremely low start-up current. The drive motors correspond primarily to protection class IP54 according to DIN EN 60034-5. The winding insulation corresponds to the thermal class F. In addition, the winding has a standard moisture protection impregnation.

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AC motors

The EC motors used are characterized by very high efficiency even at partial loads, and excellent control behavior. They are easy to connect, individually preconfigured, compact in design and have a high power density. The implementation of additional functions (e.g. volumetric flow and pressure control) is possible. Rosenberg EC motors primarily meet protection class IP54; input voltage of 380V-480V (50/60Hz). Rosenberg EC motors are continuous speed controllable and have integrated motor protection. 

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You can choose from the following types of fans

Axial Flow fans

Axial Wall Mounted  
Axial Inline  

–   Explosion Proof
–   Smoke 300 / 400 C for 2hours 

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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 aluminum

  • integrated control system (EC controller)

  • speed is 100% infinitely variable

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Axial fans (Type: AKFE / AKFD)

Properties

  • flow rates up to 28,000 m³/h

  • size: 500 - 1000 mm (impeller diameter)

  • asynchronous external rotor motor

  • sickle formed profiled impellers made of cast aluminum

  • terminal box design; alternatively, lateral or axial cable outlet

  • protection class IP54, thermal class F

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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

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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

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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

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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

Centrifugal Fans

  • Direct Driven (Box, Duct, Rooftop, Tube, Plug, SISW, DIDW)
  • Belt Driven (Forward and Backward Curved Impellers)

Centrifugal Fans (backward curved)

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EC Centrifugal fans; backward curved (Type: EHAG...)

Properties

  • flow rates up to 13,400 m³/h

  • size: 225 - 560 mm (impeller diameter)

  • highly efficient EC technology

  • compact design

  • backward curved impellers

  • feet can be offset by 90°

  • variable discharge direction

  • integrated control system (EC controller)

  • speed is 100% infinitely variable

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Centrifugal fans; backward curved (Type: E/DHA...)

Properties

  • flow rates up to 28,000 m³/h

  • size: 225 - 560 mm (impeller diameter)

  • asynchronous external rotor motor

  • backward curved impellers

  • feet can be offset by 90°

  • protection class IP54

  • thermal class F

  • connection cable on side

  • motor protection by thermal contacts

  • speed is variable using auto transformers

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Centrifugal fans with IEC standard motor ; backward curved (Type: EHN...)

Properties

  • flow rates up to 21,000 m³/h

  • size: 200 - 630 mm (impeller diameter)

  • casing made of galvanized sheet steel

  • casing position: LG or RD

  • IEC standard motor, IP55, thermal class F

  • backward curved impellers

  • terminal box directly on motor, IP55

  • motor protection through PTC thermistors

Free Running Impellers

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Free running impellers with EC-drives (Type: GKHM / GKHS / GKHR)

Properties

  • flow rates up to 17,000 m³/h

  • size: 250 - 630 mm (impeller diameter)

  • highly efficient EC technology

  • backward curved impellers

  • integrated control system (EC controller)

  • speed is 100% infinitely variable

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Free running impellers with EC-drives (Type: GKHB)

Properties

  • flow rates up to 23,000 m³/h

  • size: 450 - 710 mm (impeller diameter)

  • highly efficient EC technology

  • backward curved impellers

  • integrated control system (EC controller)

  • 5-100% continuously adjustable

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Free running impellers (Type: DKHM)

Properties

  • flow rates up to 15,000 m³/h

  • size: 250 - 630 mm (impeller diameter)

  • asynchronous external rotor motor

  • backward curved impellers

  • terminal box design ; alternatively, lateral or axial cable outlet

  • compact, space-saving design

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Free running impellers (Type: DKNB)

Properties

  • flow rates up to 60,000 m³/h

  • size: 250 - 1000 mm (impeller diameter)

  • backward curved impellers

  • IEC standard motors in type 3

  • can be installed in all positions

  • compact design

Roof Fans

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EC Roof fans (Type: DV/S...G / DVE/S...G / DVW/S...G)

Properties

  • flow rates up to 15,000 m³/h

  • size: 190 - 710 mm (impeller diameter)

  • vertical outlet

  • highly efficient EC technology

  • backward curved impellers

  • mounted on/off switch

  • solid weatherproof casing

  • easy to install

  • integrated control system (EC controller)

  • speed is 100% infinitely variable

  • integrated pressure sensor (type: pressure control)

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Roof fans (Type: DV/S, DVE/S)

Properties

  • flow rates up to 17,000 m³/h

  • size: 190 - 800 mm (impeller diameter)

  • vertical outlet

  • backward curved impellers

  • different models

  • solid weatherproof casing

  • easy to install

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Roof fans (Type: DH, DHE)

Properties

  • flow rates up to 15,000 m³/h

  • size: 190 - 630 mm (impeller diameter)

  • horizontal outlet

  • backward curved impellers

  • solid weatherproof casing

  • easy to install

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Roof fans with IEC standard motor (Type: DVNF/S, DVN/S)

Properties

  • flow rates up to 36,000 m³/h

  • size: 310 - 900 mm (impeller diameter)

  • vertical outlet

  • IEC standard motors as drive

  • suitable for higher conveying temperatures

  • backward curved impellers

  • different models

  • solid weatherproof casing

  • easy to install

  • DVNF with integrated frequency converter

Tube Fans

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EC Tube fans (Type: R...G)

Properties

  • flow rates up to 2,500 m³/h

  • size: 100 - 355 mm (tube diameter)

  • highly efficient EC technology

  • backward curved impellers

  • can be used in all mounting positions

  • integrated control (EC controller)

  • speed is 100% infinitely variable

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Tube fans (Type: R)

Properties

  • flow rates up to 2,500 m³/h

  • size: 100 - 355 mm (tube diameter)

  • steel casing

  • backward curved impellers

  • can be used in all mounting positions

  • speed is 100% infinitely variable using auto transformers or electronic control

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Tube fans (Type: RS)

Properties

  • flow rates up to 1,200 m³/h

  • size: 100 - 315 mm (tube diameter)

  • plastic casing

  • absolutely resistant to corrosion

  • backward curved impellers

  • can be used in all mounting positions

  • speed is 100% infinitely variable using auto transformers or electronic control

  • extremely low noise level

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EC Zerobox (Type: Z...G)

Properties

  • flow rates up to 3,000 m³/h

  • size: 125 - 400 mm (tube diameter)

  • insulated casing

  • highly efficient EC technology

  • can be used in all mounting positions

  • easy cleaning and maintenance

  • integrated control (EC controller)

  • very low noise

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Zerobox EVOLUTION (Type: Z...R)

Properties

  • flow rates up to 2,400 m³/h

  • size: 125 - 400 mm (tube diameter)

  • insulated casing

  • high volume and pressure performance

  • can be used in all mounting positions

  • easy cleaning and maintenance

  • speed is 100% infinitely variable using auto transformers or electronic control

Duct Fans

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EC Duct fan (Type: KHAG)

Properties

  • flow rates up to 12,000 m³/h

  • duct size: 40 x 20 cm to 100 x 50 cm

  • swing out motor and impeller unit

  • backward curved impellers

  • integrated control system (EC controller)

  • speed is 100% infinitely variable

  • sound-proofed version possible (..WS)

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Duct fan; swing-out (Type: KHAE / KHAD)

Properties

  • flow rates up to 11,000 m³/h

  • duct size: 40 x 20 cm to 100 x 50 cm

  • swing out motor and impeller unit

  • backward curved impellers

  • speed is variable using auto transformers

  • extremely low starting current

  • sound-proofed version possible (..WS)

Fans made of Plastic

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Fans made of plastic (Type: EPN...)

Properties

  • flow rates up to 8,200 m³/h

  • size: 180 - 500 mm (impeller diameter)

  • motor out of air stream

  • conveying liquid temperatures up to 100°C possible

  • for the exhaust of dirty and greasy air

  • efficiency-optimised casing-impeller combination

  • high efficiency

  • door hinge DIN right/left can be variably converted

Explosion Proof Fans

The Directive 2014/34/EU governs the subject of “Explosion Protection” throughout the European Union. Regulations referring to placing products on the market to be utilized in areas with potentially explosive atmospheres are established in this specific directive. Rosenberg fans are designed in an explosion-proof version, manufactured and tested in accordance with the requirements of the following standards:

  • Explosive atmospheres – Basic concepts and methodology EN 1127-1

  • Non-electrical equipment for potentially explosive atmospheres, part 1 Basic method and requirements EN 13463-1

  • Non-electrical equipment for potentially explosive atmospheres, part 5 Protection by constructional safety “c” EN 13463-5

  • Design of fans working in potentially explosive atmospheres EN 14986

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Air Handling Units

The requirements on a ventilation system are not always the same. In many applications, all that is required is a straightforward exchange of air, whereas in other applications the requirements can be very exacting with regard to temperature, humidity and purity of the air. 

Rosenberg air handling units in the Airbox series have a modular design and can be individually configured. In this way, the appropriate solution can be assembled using a kind of modular principle for each application in a quick and straightforward procedure. Both, in the high-tech area and for classic building technology, air handling units from Rosenberg deliver clean air at the right tempered room climate. Weather-proof and explosion-proof designs are possible, as well as TÜV certified hygiene variants. 

Overview of the unit series 

The units consist of a framework structure with double-skinned panels that have acoustic and thermal insulating properties. The individual modules for the filter, fan, heater, cooler, heat recovery, acoustic insulation as well as the frame materials, are assembled flexibly according to the customers ‘requirements. The F40 series is produced in a frameless design. The panels are screwed together from the outside so that the devices are smooth internal surfaces and are hence hygienically safe. 

The air handling units Airbox S60 and T60 are equipped with a framework construction made from aluminum or galvanized, rolled steel profiles and aluminium cast corner connectors or plastic corner connectors. The double-skinned panels of Airbox S60 and T60 air handling units are filled with non-combustible, sound and heat insulating rock wool insulation. In addition to galvanised steel panels and the framework construction, it is also possible to select coated steel, aluminium and stainless steel versions in our range. For modules with smaller dimensions, the base frame is manufactured in various heights (100, 300, 500 mm) using galvanised, folded steel sheet. Larger modules have a welded base frame (primed or galvanised).

AIRBOX-F40 AIRBOX-S60 AIRBOX-T60
Panel thickness: 40 mm 60 mm 60 mm
Frame: frameless design 1.5 mm galvanised steel1.5 mm aluminium and thermally decoupled

Energy efficiency 

The main factors which are important for the energy efficiency of an air handling unit are the air velocity in the profile unit face as well as the electric power consumption of the fan which is dependent on the air volume and pressure increase. In a combined air handling unit with heat recovery (HRU), the efficiency and pressure loss of the heat recovery must also be taken into account. 

We work in accordance with the statutory requirements of the German Energy Saving Ordnance (EnEV), as well as the requirements of the German AHU Manufactures Association (RLT) when selecting the parameters for air velocity, the electrical power consumption of the fans and the efficiency of heat recovery. The criteria of the RLT energy efficiency label correspond to the standard DIN EN 13053 A1 (2011). This standard defines nine air velocity classes from V1 to V9, six heat recovery classes from H1 to H6 as well as six classes for the power consumption of fans from P1 to P6. The specific power consumption of a fan (SFP), installed in the air handling unit, is calculated as defined by the current DIN EN 13779. 

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AIR CURTAINS

Airtècnics is the vanguard of knowledge and technology in air curtains. With more than 30 years’ experience, we become a market leader, exporting to more than 55 countries worldwide. We design and produce a complete range of air curtains for all kind of applications and installations, including high energy efficiency EC motors, heat pump direct expansion coils and multiple jets. We offer tailor made, customized finishes and exclusive design solutions. Airtècnics provide basic and advanced regulation to fulfil all the market requirements. Our Clever Control with Modbus Protocol is ready to connect to BMS system, Windows PC and smartphones via Wi-Fi. Our air curtains are manufactured following high quality and reliably exclusive criteria, obtaining high performance and energy saving combined with an innovative design.

We are providing three categories of air curtains: 

  • Commercial Air Curtains 
  • Decorative Air Curtains 
  • Industrial Air Curtains 
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Commercial Air Curtains 

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Decorative Air Curtains

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Industrial Air Curtains

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ZEN Air Curtain Finishes 

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