SCHAEFER · Drum fan · Extra large airflow

SCHAEFER TW30B Oscillating Circulation Fan

SCHAEFER TW30B Oscillating Circulation Fan
  • 9,600 CFMon high
  • 30-inchhead
  • 2speeds
  • 1/2 HPmotor
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Specs cited from Manufacturer source ↗Photos: Amazon listing ↗ · refreshed Oct 31, 2026

SCHAEFER TW30B Oscillating Circulation Fan is a drum fan with 30-inch listed fan diameter.

What works

  • 9,600 CFM on high from a 30-inch head
  • 2 speeds, down to 8,500 CFM on low
  • 1/2 HP motor on standard 115 V power
  • 2-year warranty
  • 10-ft power cord

What doesn't

  • Needs clear floor space for placement

Who it's for

Good fit

  • Portable circulation across larger open work areas

Look elsewhere if

  • Floor space is too restricted for a drum-fan frame

A good fit for your job? Check the current price and delivery.

See price on Amazon

SCHAEFER TW30B Oscillating Circulation Fan is a drum fan with 30-inch listed fan diameter.

Check the frame footprint and access route before buying. A high airflow rating alone does not establish how air reaches each occupied part of the room.

Before you buy

Installation and buying checks

Use these questions to verify the exact configuration. Linked facts are cited; unlisted details stay questions.

  1. Mounting and support

    What mounting method and hardware does the exact unit require?

  2. Clearance and handling

    Do the listed physical details leave enough clearance for installation, adjustment, and service?

  3. Electrical match

    Does the documented electrical information match the planned supply? Confirm the installed unit’s nameplate and installation instructions before connecting it.

  4. Airflow at the job

    Is the listed airflow rated at an operating point that matches the job after placement, obstructions, and system resistance are considered?

  5. Location requirements

    Does the site require an environmental rating or guard? Neither is listed here.

Put 9,600 CFM in context

The SCHAEFER TW30B Oscillating Circulation Fan has a listed airflow of 9,600 cubic feet per minute. The table compares this rated volume with example room volumes. It does not measure fresh-air exchange, air speed at your body, or room coverage.

RoomSizeNominal room volumes / hourNominal pass interval
One-car garage22 × 12 × 9 ft · 2,376 ft³242×15 s
Two-car garage22 × 20 × 9 ft · 3,960 ft³145×25 s
Workshop40 × 30 × 12 ft · 14,400 ft³40×1.5 min
Warehouse bay100 × 50 × 16 ft · 80,000 ft³7.2×8.3 min

A circulation fan does not by itself replace indoor air. Exhaust airflow depends on a makeup-air path and system resistance. Use installed outdoor airflow for ventilation calculations.

Formula: airflow × 60 ÷ room volume. CDC explains the ventilation form of this equation; here the input is a catalog rating, so the result is a volume comparison.

Work it out for your own room →

Listing details

What we know about this listing

Listing data was imported on October 31, 2026. Each specification can have a different source-check date; the evidence below is the most precise source information available here.

Sources for 10 listed specifications
  • Blade diameter: Schaefer TW30B product page · checked Sep 23, 2026 · Specifications table — “Cfm (high) 9600; Cfm (low) 8500; Speeds 2; Diameter (inches) 30; Cfm Calculation Standard ANSI/AMCA Standard 230-99”
  • Blade diameter: Amazon product listing · checked Sep 15, 2026
  • Airflow (high): Schaefer TW30B product page · checked Sep 23, 2026 · Specifications table — “Cfm (high) 9600; Cfm (low) 8500; Speeds 2; Diameter (inches) 30; Cfm Calculation Standard ANSI/AMCA Standard 230-99”
  • Airflow (low): Schaefer TW30B product page · checked Sep 23, 2026 · Specifications table — “Cfm (high) 9600; Cfm (low) 8500; Speeds 2; Diameter (inches) 30; Cfm Calculation Standard ANSI/AMCA Standard 230-99”
  • Speeds: Schaefer TW30B product page · checked Sep 23, 2026 · Specifications table — “Cfm (high) 9600; Cfm (low) 8500; Speeds 2; Diameter (inches) 30; Cfm Calculation Standard ANSI/AMCA Standard 230-99”
  • Motor: Schaefer TW30B product page · checked Sep 23, 2026 · Specifications table — “Power (hp) 1/2; Product Net Weight (lbs) 55; Voltage 115; Nameplate Amps 5.9”
  • Weight: Schaefer TW30B product page · checked Sep 23, 2026 · Specifications table — “Power (hp) 1/2; Product Net Weight (lbs) 55; Voltage 115; Nameplate Amps 5.9”
  • Voltage: Schaefer TW30B product page · checked Sep 23, 2026 · Specifications table — “Power (hp) 1/2; Product Net Weight (lbs) 55; Voltage 115; Nameplate Amps 5.9”
  • Current: Schaefer TW30B product page · checked Sep 23, 2026 · Specifications table — “Power (hp) 1/2; Product Net Weight (lbs) 55; Voltage 115; Nameplate Amps 5.9”
  • Cord length: Schaefer TW30B product page · checked Sep 23, 2026 · Specifications table — “Cord Length (feet) 10”
  • Warranty: Schaefer TW30B product page · checked Sep 23, 2026 · Feature list — “Two year warranty”

Photos illustrate the listed model. Confirm the current variant, included hardware, and finish with the seller before purchase.

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