AC Direct Drive Fans
Impeller sizes from 241 mm to 381 mm

Here at Torin-Sifan we first started manufacturing AC Direct Drive fans in our UK Factory in 1964 and have since established ourselves as a leading producer of Direct Drive fans in Europe. Literally millions of Torin-Sifan Direct Drive fans (or blowers) have been produced and supplied into the European air-movement market over the years.


The types of applications that these high-flow fans are typically suited to include: ventilation units, air handling units, air curtains, and heat recovery.

Torin-Sifan has a full range of AC Direct Drive products utilising traditional AC Motor technology as well as three phase AC Motors with integrated inverter for higher efficiencies and more flexible controllability. All fans are supplied with outlet flanges. Supply voltages are 230/1/50 for single phase and 400/3/50 for 3 phase models.

All of the metal components that make up the AC Direct Drive fan are produced within our press shop, including side housings, wraps and of course the impellers prior to arriving at the assembly process where impellers are balanced and the products are engineered together.

The range of AC Direct Drive fans from Torin-Sifan includes all of the Industry standard sizes and motor power combinations. In addition to this and a key feature of the services Torin-Sifan offers its customers, is our ability to engineer non-standard and application specific blowers, meaning your product is never compromised.

Typical features of the AC Direct Drive range include:

  • High reliability galvanised steel construction for housing and impellers
  • Designed for continuous operation
  • Built-in thermal protection
  • Operation temperature -20 ºC to +40 ºC
  • Forward Curved Impellers
  • Impeller sizes from 241 mm to 381 mm
  • Motor insulation Class B
  • Motors available range from IP10 construction through to IP31
  • High reliability, sealed for life bearings

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