Well, the pretty nice seven, anyway, in this 7-blade muffin fan, measuring 4-3/4" sq x 7/8" and drawing 280mA at 12VDC. Spins approx 2000 rpm and pushes approx 74cfm. Comes with 8" leads and 3/16" mounting holes at the corners. Velleman® part #BLS 12/120.
Muffin fans, pay attention. You pick the "nice" 110 VAC 21W fan from Thermocool, measuring 4-3/4" square x 1-1/2" thick with an offset two-pin power connector, rated for 82-95 cfm and spinning at approx 2600 rpm, with five blades and 3/16" mounting holes at the corners (Mfr part # G12038HA1ST); or the "beastly" 110VAC 36W muffin fan from the same mfr, which blows up to 198 cfm at 2900 rpm and measures 6-3/4" x 6" tall x 2" thick with (2) power terminals on a removable shroud, 5 blades, 5/32" mounting holes on the corners plus a ground lug. Both UL.
Our special Little-Fans-R-Us offering. All these muffin fans are square
and all have mounting holes at the corners. Pick and choose the one you want or take a chance on the takeout assortment. (Assortment will not have fans listed in the table above) Please note that the assorted fans are takeouts and will have at least have least two different fans from different manufacturers but maybe the same size. It will be a crap shoot as to what you will receive.
Nice black plastic fan blade, looks much more menacing than it is. 1-5/8" dia x 3/4" thick. 8 blades, each 1/4" wide, in a twisting pattern. Takes a 1/16" shaft, (2) 1/4" dia holes on either side of the shaft hole. Gives a squirrel type effect, unless you put it in a housing. We'd also like to see this as a deep-mud tire for a model vehicle.
And even more fan blades. Choose a white-plastic 5-blade or a
black-plastic 4-blade, each approx 4" across with a 3/16" bore. Designed
for clockwise rotation. No motor. Just blades. (But nice little
This little Philips fan is a takeout from a Remstar Pro M series CPAP machine (that’s Continuous Positive Airway Pressure) for sleep apnea prevention. Blower has a 3-phase brushless DC motor that draws 150mA at 12VDC on one of the coils. You’ll need a controller, and the output will depend on that. Unit is completely encased and measures 3” dia x 2” thick with an 11/16” inlet and a 13/16” outlet.
We're awarding a prize to this 5-blade muffin fan from Papst®, just because it's from Hungary. Measures 4-3/4" square x 1-1/2" and is rated 115 VAC, 18 Watts, 150mA and 106cfm. Has a pair of 3mm terminals for power. UL/CSA.
This 12VDC low-pressure, piston-driven, diaphram air pump has a 7/32" inlet. Motor draws 100mA no load, stalls at approx 4.3A, spins approx 3500 rpm and measures 4" x 1-5/8" x 3" with 10" leads. Shaft has a 1/2" dia cam to drive the piston. Motor is Mabuchi RK-555PH.
Keep the schmutz out of your fan with this 120VAC 24W muffin fan that comes with a matching grille and an identical matching filtered grille, with 1/8" mounting holes. Fan alone measures 4-11/16" square x 1-1/2" and has a polarized power cord. Not rated, but seems to blow approx 90cfm.
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