Big Fans [HVLS] / MonsterFans DD Series


MonsterFans DD Series

Direct-Drive HVLS Fan

Built with a gearless direct-drive permanent magnet motor, this commercial industrial HVLS fan provides Monster Comfort by moving Monster amounts of air in the space.


  • Warehouses
  • Manufacturing
  • Distribution centers
  • Vehicle maintenance
  • Airplane hangars
  • Industrial applications


Our MonsterFans provide monster comfort by moving monster amounts of air volumes at a slow non-disruptive speed. See how Schwank MonsterFans work.

[Watch time 2 min]

MonsterFans DD Series highlights

Direct-Drive HVLS Fan

Discover our MonsterFans DNA


  • Diameter 8–24 feet [2.4–7.3 meters]
  • 264 CFM/Watt
  • 53-105 RPM
  • 5 anodized aluminum blades
  • Gearless direct-drive permanent magnet motor
  • Unbreakable alloy hub [713 cast aluminum alloy]


  • 5-year warranty on motor, gearbox, and control panel
  • Lifetime warranty on blades, hub, and mounting system


  • Five airfoil blades are a larger width at 10¼” for Monster air movement
  • Blade design offers a unique angle of attack up to 23°
  • Built-in 20,000 lumens LED dimmable light
  • Versatile mounting to bar joists, i-beams, purlins, and wood frames
  • Certified by UL and CSA


  • Building Management System [BMS] integration
  • Learn about Monster Control options
  • Optional wind sensor and mounting kit extensions


MonsterFans DD Series resources

Explore product brochures, case studies & technical information.


Click on the image to view and download PDF.



See how our MonsterFans save energy for your heating system in the winter. When heating large buildings, heat naturally rises to the ceiling and gets wasted. With slow rotations, MonsterFans enable the warm air to start moving and spread out into the building. 

[Watch time 1 min]

Technical documents

Installation Manual

Electrical Manual

Touch Control Manual


Technical Spec

Purlin Mount Installation

Standard Mount Installation

AutoCAD Drawings [DWG]

AutoCAD Drawings [PDF]

Additional resources

Blog | Introducing MonsterFans by Schwank

Blog | MonsterFans Destratification with HVLS

Blog | MonsterFans Blade Strength

Get started

For more information or to purchase, please contact our heating experts


Get in touch

If you have a general inquiry, please call us toll free (USA & Canada) or email our experts.

Where to buy

Schwank experts will help you select the units and design that best fit your application, at no charge.


Request a free design

Our team will recommend & support specifying the required products and be a partner to guide you through the entire design process.