Data Center Cooling

Fan Wheels for Supply and Exhaust Air

Servers, processors, memory and other hardware used in large data centers generate heat by converting part of the electrical energy into thermal energy. In order to ensure an optimal operating temperature of the electronics and to prevent the components from overheating, which would result in failures or data loss, data centers require sufficient cooling and good ventilation. This is the only way to ensure the reliable and fault-free operation of a data center.

The cooling of data centers causes enormously high energy costs. Around 30% of the energy consumption of a data center, which is not generated by the actual IT, is accounted for by the fans used for cooling. The application-specific selection of the fans used can therefore make a significant contribution to reducing the operating costs of a data center.

Modular fan arrays are often used to supply and distribute the air and to remove the heated exhaust air. The operating points typically lie in the right-hand characteristic curve range, which is characterized by a high volume flow rate with a tendency towards low static pressure.

Data Center Cooling

punker Data Center Cooling Fan Wheel

The new Data Center Cooling fan wheel from punker has been specially developed for supply and exhaust air in data centers where very high volume flows at low pressure are required. The new Data Center Cooling fan wheel achieves a significantly higher efficiency than competitor products in this application area. The use of this fan wheel thus enables savings in the operating costs of a data center. Another positive side effect is the reduction in noise emissions.

  • Potential savings in operating costs
    through higher energy efficiency of the fan wheel in typical data center operating points
  • Optimum use of resources
    of the motors used thanks to fan wheel sizes ideally matched to the application
  • Material cost savings
    in insulation due to low noise emission of the impeller with airfoil blades
  • Flexible and compact system design
    possible due to lower installation depth of the flow-optimized inlet cone ED11
  • Easier handling
    during installation and maintenance thanks to lightweight aluminum design
  • Reduction of maintenance costs
    through longer service life of the motor due to lower bearing load
  • Economical wheel-motor combination options
    thanks to flexible motor mounting with different shaft diameters (TaperLock hub)
  • Data Center Cooling
  • Data Center Air Handlers (CRAH)
  • Fan arrays
  • Supply air / Exhaust air in data center
  • Plug fans
  • Precision air conditioners (CRAC)
Technical Data
Models 4 diameters, two standard widths each
Diameters 560 mm to 800 mm (22″ to 31″)
Material of construction Aluminum
Inlet Cone ED11
Wheel-Motor-Mounting Taper Lock-hub, optionally fixed hub


In 3 steps to the optimum fan wheel

With puncat WEB, you can carry out the preliminary selection of fan wheels directly on our website. Display suitable products for your application by determining the duty point, speed and diameter and specify your search via energy efficiency requirements, available installation space or maximum shaft power.

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Data Sheet Data Center Cooling

Data Center Cooling Fan Wheels

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Data Sheets | Inlet cones

Inlet Cone ED11

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Data Sheets | k-Factor

k-Factor ED11 | Dlight, Dclassic, Dprime, Aclassic, Bclassic

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Case Study Data Center Cooling

This case study shows how the optimal selection of the fan and fan wheel used can help reduce the operating costs of a data center by up to $US 7,000 per year and thus sustainably lower the carbon footprint of a hyperscale data center. In addition, punker's Data Center Cooling solution has a lower fire load and better recyclability than plastic blower wheels.

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For detailed technical information please contact our application expert

Kian Lüpke

Application Engineer | Expert General HVAC, Data Center Cooling


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