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Large steel industrial blower, 30 inch blades, non-oscillating, wall mount design

Dayton

Dayton 7DJ39 30" Non-Oscillating Blower 8900 CFM 115V

SKU CH-FNMW-2ZXF8

Moves 8900 CFM of air at 115 V with a 30-inch steel blade in ambient temperatures up to 140 °F

  • Moves 8900 CFM for rapid air exchange in large spaces
  • Runs on standard 115 V AC power for simple installation
  • Withstands 140 °F ambient temperature for high-heat environments
  • Direct-drive 1/2 HP motor at 1120 RPM reduces maintenance needs
  • Operates at 75 dBA for moderate noise levels

Industrial air circulator for high-heat environments

The Dayton 7DJ39 is a 30 inch non-oscillating blower built for stationary wall mounting. It delivers 8900 CFM at a 75 dBA sound level and withstands ambient temperatures up to 140 degrees F. The direct-drive motor runs at 1120 RPM on 115V AC single-phase power.

Upgrade from smaller or oscillating units

This model replaces compact fans that cannot move enough air across large floor areas or survive sustained high-temperature operation. The jump is worth it when you need a fixed, high-velocity stream reaching 700 feet per minute at 20 feet distance. It is not for buyers who need directional oscillation or portable floor placement.

Limits of 115V single-phase direct drive

The 350 watt motor draws 4.9 amps at 60 Hz, capping airflow at the rated 8900 CFM without variable speed control. Blade diameter is fixed at 30 inches within a 33 inch square housing that extends 14-1/4 inches from the wall. Installers must provide a dedicated 115V circuit and structural wall support for the steel assembly.

Highlights

  • Moves 8900 CFM for rapid air exchange in large spaces
  • Runs on standard 115 V AC power for simple installation
  • Withstands 140 °F ambient temperature for high-heat environments
  • Direct-drive 1/2 HP motor at 1120 RPM reduces maintenance needs
  • Operates at 75 dBA for moderate noise levels

Specifications

BrandDAYTON

Questions about this item

What wall clearance and opening size does the 33-inch diameter housing need?

The unit measures 33 in. wide, 33 in. high and 14-1/4 in. deep, so the wall opening and mounting surface must accommodate those outside dimensions.

How is the blower secured to the wall and what step is often missed?

Mount the fan to a structural wall using the integral brackets, then verify the blade spins freely before wiring; skipping the spin check risks binding after power is applied.

When should the direct-drive motor bearings be relubricated or replaced?

Listen for increased noise above the rated 75 dBA; bearing wear accelerates at the 140 °F max ambient, so relubricate or replace when sound level rises noticeably.

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