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Railway & Rolling Stock

Robust & Durable Fans for Rail & Rolling Stock

Fans for Railway Applications

Modern rail transport technology has a great demand for high-quality fans worldwide. Specially designed fans used in underground and suburban railways, regional and high speed trains for the cooling of traction engines, transformers, electronics and air-conditioners. Our fans have successfully been in use in these demanding applications on every for many years and meet the most diverse requirements with regard to mechanical shock, temperature range and power supply

High Voltage Fans for A wide Range of Services in Rail Technology

Cab Air Conditioning
The workplace of the train operator places high technical demands on heating, ventilation and air conditioning. Whether roof-mounted systems, integrated roof units or sub floor systems – our free running impellers in the DKHR/M (EC variant GKHR/M) series are ideal for the air movement required. ERA centrifugal fans, axial fans in the AKF/AKS series and REE and VRE fans in the ECOFIT series are perfect for this application.

 

Component Cooling of the Drive and Braking System
A rail vehicle traction chain consists of a variety of elements, such as traction engines or traction inverter. Accumulating heat loss must be diverted to avoid damaging overheating. The same applies to components of the braking systems of trains. Free-running impellers in the DKHR/M series (EC variant GKHR/M), ERA/DRA centrifugal fans and GDF fans in the ECOFIT series are ideally suited for these applications.

 

Passenger Compartment Air Conditioning
Comfort for the passenger has priority in railway technology. Fans from the Rosenberg group are the right choice for a pleasant climate in the carriages. They manage the necessary operating points within integrated system solutions reliably and with minimum space requirements. For example, our free running impellers in the DKHR/M series (EC variant GKHR/M), fans in the DRA series, GDF centrifugal fans in the ECOFIT series as well as axial fans in the AKF/AKS series meet these requirements.

 

Switch cabinet ventilation / Cooling of electronics
The construction of railway vehicles includes many electronic components which are frequently housed in switch cabinets. Here, too, sufficient heat dissipation is required to protect sensitive electrical components from overheating. Our free running impellers in the DKHR/M series (EC variant GKHR/M), ERA centrifugal fans or REE, GDF as well as 200D fans in the ECOFIT series were developed specifically for this application area.

 

Switch Cabinet Ventilation / Cooling of Electronics
The construction of railway vehicles includes many electronic components which are frequently housed in switch cabinets. Here, too, sufficient heat dissipation is required to protect sensitive electrical components from overheating. Our free running impellers in the DKHR/M series (EC variant GKHR/M), ERA centrifugal fans or REE, GDF as well as 200D fans in the ECOFIT series were developed specifically for this application area.

A high-precision power supply within the on-board power supply system of railway vehicles is state of the art nowadays. Here too, system components such as inverters are also used which must be cooled, as, for example, in the propulsion system of trains. Free-running impellers in the DKHR/M series (EC variant GKHR/M), ERA/DRA centrifugal fans and GDF fans in the ECOFIT series are ideally suited for these cooling applications.

Axair Fans UK Limited, in partnership with the Rosenberg Group of companies (including Rosenberg, ECOFIT and ETRI) can offer a complete selection of fans and air movement products for railway applications, particularly for rolling stock.

 

Rosenberg & Ecofit Fans are all External Rotor Motors, Offering:

  • Compact assemblies
  • Wide range of airflows/pressures
  • Optimum efficiency
  • Speed controllability
  • Low noise level
  • Low maintenance

The Range is Composed of:

  • Compact frame axial fans & high performance fans from ETRI
  • Single or double inlet centrifugal forward curved fans, backward curved motorised impellers (up to Ø315) and axial flow fans (up to Ø400), motor power up to 250Wa from ECOFIT
  • Single or double inlet centrifugal forward curved fans, backward curved motorised impellers (up to Ø630) and axial flow fans (up to Ø1000) from ROSENBERG

Axair Fans UK has an extensive experience in fans for Railway applications, including:

  • Fans for air conditioning in driver’s cabin and passenger compartment
  • Cooling of components of the propulsion and braking system
  • Switchgear & electronic control panel cooling
  • Component cooling for on-board transformer system

Rolling stock and railway OEM customers will benefit from:

  • An unparalleled experience gained from past projects, consolidated by a strong partnership between Rosenberg, Ecofit & Etri
  • An extensive range of products, all manufactured under the same standards
  • R&D Engineering team to assist in the development of a new product design.

Products will be designed and manufactured to the highest International railway standards, including:

 

Standard No.                        Title


BS EN 45545-2:2013             Railway applications. Fire protection on railway vehicles.
                                                 Requirements for fire behaviour of materials and components 

EN 50155 standard               Railways Applications Electronic Equipment Used on Rolling Stock

EN61373:1999                       Railway applications. Rolling stock equipment. Shock and vibration tests

 

Motor protection:

Fans in rolling railway applications are mostly inverter driven. Such power supplies generate voltage peaks, such as harmonics (% Voltage harmonic distortion), Voltage Peaks (Vpeak), fast voltage variations (dV/dT) which can damage motor winding and shorten their lifetime dramatically. Issues include Corona Effect, partial discharge and overheating.

 

Common features & options include:

  • Choice of voltage: AC Single phase 230 Volts 50/60Hz,  AC Three phase 230/400/480 Volts 50/60Hz, Star or Delta, DC 24, 48, 72 or 110 Volts
  • Halogen-Free Halogen cable, compliant to International standards
  • Special resin encapsulated motor windings to IP55 for both: environmental protection against dust or water ingress and humidity, electrical protection against Voltage peaks
  • Winding resistance dv/dt>2500V/µs
  • Sealed/waterproof ball bearings or Hybrid ball bearings against EMC damages
  • Re-inforced mechanical parts such as brackets or flanges
  • Thermal cut-out TK leads brought out
  • Painted motors, impellers and casings
  • Hall effect sensors (tachymeter control)
  • Railway specification connectors

Railway Specification options include:

  • Robust specific construction
  • Shielded cable
  • Specific fan development