Supply Air

Read more about our Supply Air System. Download the Supply Air System Brochure (pdf).

The Air Trac 'positive pressure' ventilation system for

Alliance 315 ton cranes, melt shop


Supply Air Before Image

Electrical Switch Gear and Contactors in Crane Girder

Before Air Trac System Installed


Supply Air After Image

After Air Trac System Installed


Supply System

Provides clean, conditioned air to moving equipment/operators

  1. Stationary Air Supply Unit located outside building. Contains: disposable filter, electric heating coil, cooling coil optional (can be either air or water cooled condensing unit).
  2. Insulated supply duct to Air Trac.
  3. One Air Trac services all cranes on a common runway. Systems are now in operation up to 1000 ft. long.
  4. Conditioned air for cab year round, pressurized cab eliminates all fume conditions.
  5. Air to cool and pressurize electrical enclosures. Drastically reduces breakdowns of electrical equipment.
  6. Air supply to pulpits and 'hot spot' work areas at ground level.
  7. Additional air supply units for multiple crane runways.

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