48" Blade Diameter Fans | McMaster-Carr

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43 Products

About Exhaust Fans

About Sound Levels

Measured in decibels (dB), volume ratings indicate how much noise equipment makes. Some common volume levels include a whisper @ 20 dB, a refrigerator @ 40 dB, a conversation @ 60 dB, and a light machine shop @ 90 dB. OSHA recommends hearing protection for exposure to 80 dB and greater.

Economy Direct-Drive Mobile Floor Fans

Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance.

Fans with a totally enclosed motor enclosure can be used in dirty, dusty, and damp environments.

Fans

Replacement Wheel

Fans
							Overall										Replacement Wheels
Blade Dia.	Airflow, cfm	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Current, A	Ht.	Wd.	Dp.	Cord Lg., ft.	Housing Material	Blade Material	Guard Material	Specifications Met		Each		Each
Totally Enclosed Motor Enclosure
120V AC, Single Phase—Three Prong Plug
48"	19,100	78 dBA @ 15 ft.	850	1	1	9.1	52"	51"	25"	10	Steel	Aluminum	Steel	C-UL Listed, UL Listed	00000000	000000000	00000000	000000

Replacement Blades

Replacement Blade

Blade
Dia.	Material	No. of		Each
48"	Steel	3	00000000	0000000

Replacement Motors

Replacement Motor

For Fans with Totally Enclosed Motor Enclosure
For Motor Speed, rpm	For Blade Dia.		Each
850	48"	00000000	0000000

Economy Direct-Drive Mobile Floor Fans with Tilt Stand

Tilt fans to direct air where it's needed. These direct-drive fans have fewer moving parts than belt-drive fans for less maintenance.

Fans with a totally enclosed motor enclosure can be used in dirty, dusty, and damp environments.

Fans

Replacement Wheel

Fans
							Overall										Replacement Wheels
Blade Dia.	Airflow, cfm	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Current, A	Ht.	Wd.	Dp.	Cord Lg., ft.	Housing Material	Blade Material	Guard Material	Specifications Met		Each		Each
Totally Enclosed Motor Enclosure
120V AC, Single Phase—Three Prong Plug
48"	19,100	78 dBA @ 15 ft.	850	1	1	9.1	60"	58"	26"	10	Steel	Aluminum	Steel	C-UL Listed, UL Listed	00000000	000000000	00000000	000000

Replacement Motors

Replacement Motor

For Fans with Totally Enclosed Motor Enclosure
For Motor Speed, rpm	For Blade Dia.		Each
850	48"	00000000	0000000

Belt-Drive Mobile Floor Fans

Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged.

Fans with a totally enclosed motor enclosure can be used in dirty, dusty, and damp environments.

Fans

Floor Fan

							Overall
Blade Dia.	Airflow, cfm	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Current, A	Ht.	Wd.	Dp.	Cord Lg., ft.	Blade Material	Guard Material	Specifications Met		Each
Totally Enclosed Motor Enclosure—Aluminum Housing
120V AC, Single Phase—Three Prong Plug
48"	23,500	Not Rated	525	1	1	9.6	51"	56"	22"	10	Steel	Powder-Coated Steel	__	0000000	000000000
Totally Enclosed Motor Enclosure—Steel Housing
120V AC, Single Phase—Three Prong Plug
48"	19,400	68 dBA @ 15 ft.	475	1	1	11.0	51"	50"	28"	10	Steel	Steel	C-UL Listed, UL Listed	0000000	00000000

Replacement Wheels

Replacement Wheel

For Fans with Steel Housings
For Blade Dia.	Wheel Dia.		Each
48"	10"	00000000	000000

Belt-Drive Mobile Floor Fans with Tilt Stand

Tilt fans to direct air where it's needed. These belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged.

Fan with a totally enclosed motor enclosure can be used in dirty, dusty, and damp environments.

Fans

Floor Fan with Tilt Stand

							Overall
Blade Dia.	Airflow, cfm	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Current, A	Ht.	Wd.	Dp.	Cord Lg., ft.	Housing Material	Blade Material	Guard Material	Specifications Met		Each
Totally Enclosed Motor Enclosure
120V AC, Single Phase—Three Prong Plug
48"	19,400	68 dBA @ 15 ft.	475	1	1	11.0	60"	58"	26"	10	Steel	Steel	Steel	C-UL Listed, UL Listed	0000000	000000000

Replacement Wheels

Replacement Wheel

For Blade Dia.	Wheel Dia.		Each
36", 42", 48"	10"	00000000	000000

Jet-Stream Floor Fans

Often used to cool warehouse aisles and production lines, these fans generate a stream of air that travels farther than air from conventional fans.They have a totally enclosed motor enclosure, which can be used in dirty, dusty, and damp environments.

Fan with hardwire connection and wheels can be rolled into place before it is hardwired. It does not allow for movement once the unit is in use.

With Wheels

With Wheels

							Overall
Blade Dia.	Airflow, cfm	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Current, A	Ht.	Wd.	Dp.	Fan Head Movement	Housing Material	Blade Material	Guard Material		Each
230V AC, Single Phase—Hardwire
48"	22,700	65 dBA @ 15 ft.	375	1	1	13.2/6.6	72"	58"	30"	Non-Oscillating	Steel	Aluminum	Steel	0000000	000000000

Ceiling Fans

Mount these fans on flat ceilings. They include a support cable or downrods to mount them into joists. All have optional speed control.

Optional installation kits (sold separately) allow fans to mount between joists.

For technical drawings and 3-D models, click on a part number.

Fans

Fan

Installation Kit

Fans
				Blade									Installation Kits
Blade Dia.	Airflow, cfm	No. of Speeds	Current, A	Rotation	Material	Color	For Min. Ceiling Ht., ft.	Mounting Fasteners Included	Includes	Specifications Met		Each		Each
120V AC, Single Phase—Hardwire
Non-Oscillating
48"	3,861	1	0.4	Reversible	Painted Steel	White	10	Yes	Support Cable, 24" Downrod	C-UL Listed, UL Listed	0000000	0000000	0000000	000000

Hazardous Location Floor Fans

Often used in welding shops and oil refineries, the motor in these fans is rated as safe for use around flammable and combustible gas, vapor, and dust. As a belt-drive motor, it’s quieter than direct-drive motors and has a longer life span because its components are replaceable. The motor is totally enclosed for protection in dusty and damp environments. These fans are freestanding, so there’s no mounting required. They have wheels for rolling into place before they’re hardwired, but don’t allow for movement once they’re in use.

Non-Oscillating Fans with Wheels

							Overall
Blade Dia.	Airflow, cfm	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Current, A	Ht.	Wd.	Dp.	Environmental Rating	Housing Material	Blade Material	Guard Material		Each
115/230V AC, Single Phase—Hardwire
48"	19,400	68 dBA @ 15 ft.	475	1	1	14.0/7.0	52"	50"	25"	NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups F, G	Steel	Aluminum	Powder-Coated Steel	00000000	000000000

Replacement Wheels

For Blade Dia.	Wheel Dia.		Each
48"	10"	00000000	000000

Hazardous Location Jet Stream Fans

UL listed for use in hazardous environments, these fans are often used to cool warehouse aisles and production lines. They generate a stream of air that travels farther than air from conventional fans. All fans have a totally enclosed motor enclosure, which can be used in dirty, dusty, and damp environments. Fans with wheels can be rolled into place before they are hardwired. They do not allow for movement once the unit is in use.

Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged.

With Wheels

							Overall
Blade Dia.	Airflow, cfm	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Current, A	Ht.	Wd.	Dp.	Fan Head Movement	Drive Type	Housing Material	Blade Material	Guard Material		Each
115/230V AC, Single Phase—Hardwire
48"	26,000	74 dBA @ 5 ft.	1,750	1	2	22.0/11.0	68"	53 1/2"	32"	Non-Oscillating	Belt	Steel	Aluminum	Zinc-Plated Steel	0000000	000000000

Dust-Resistant Direct-Drive Wall-Mount Exhaust Fans

Better suited for dirty, dusty, and damp environments than standard direct-drive fans, these have a totally enclosed motor enclosure. Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Use these fans to draw stagnant and humid air out of a room or area.

Collars and louvers are sold separately. Use a collar to connect a wall-mount exhaust fan to a louver.

For technical drawings and 3-D models, click on a part number.

Fans
							Overall									Collars
	Blade Dia.	Airflow, cfm	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Dp.	Wt., lbs.	Max. Ambient Temperature	Frame Material	Blade Material		Each		Each
230/460V AC, Three Phase—Hardwire
5	48"	37,100	82 dB @ 5 ft.	1,150	1	7 1/2	54"	54"	22 1/2"	470	104° F	Steel	Steel	0000000	000000000	0000000	0000000

Belt-Drive Wall-Mount Exhaust Fans

Use these fans to draw stagnant and humid air out of a room or area. Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged. All have an open dripproof motor enclosure for relatively clean, dry, indoor locations.

Collars and louvers are sold separately. Use a collar to connect a wall-mount exhaust fan to a louver.

For technical drawings and 3-D models, click on a part number.

Exhaust Fans

Fan

Collar

Fans
						Overall							Collars
Blade Dia.	Airflow, cfm	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Dp.	Frame Material	Blade Material		Each		Each
120V AC, Single Phase—Hardwire
48"	18,500	61 dB @ 5 ft.	400	1	1	54"	54"	24 3/4"	Steel	Steel	0000000	000000000	0000000	0000000
230/460V AC, Three Phase—Hardwire
48"	18,500	56 dB @ 5 ft.	400	1	1	54"	54"	24 3/4"	Steel	Steel	0000000	00000000	0000000	000000

Replacement Belts

Replacement Belt

For Blade Dia.		Each
48"	00000000	000000

Replacement Fan Blades

Replacement Fan Blade

Blade
Dia.	Material	No. of		Each
48"	Galvanized Steel	4	00000000	0000000

Replacement Motors

Replacement Motor

Single Phase
For Power, hp		Each
1	0000000	0000000
Three Phase
1	00000000	000000

Dust-Resistant Belt-Drive Wall-Mount Exhaust Fans

Fan

Collar

Better suited for dirty, dusty, and damp environments than standard direct-drive fans, these have a totally enclosed motor enclosure. Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged. Use these fans to draw stagnant and humid air out of a room or area.

Collars and louvers are sold separately. Use a collar to connect a wall-mount exhaust fan to a louver.

For technical drawings and 3-D models, click on a part number.

Fans
						Overall							Collars
Blade Dia.	Airflow, cfm	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Dp.	Frame Material	Blade Material		Each		Each
230/460V AC, Three Phase—Hardwire
48"	26,800	72 dB @ 5 ft.	600	1	3	54"	54"	24 7/8"	Steel	Steel	0000000	000000000	0000000	0000000

Belt-Drive Wall-Mount Exhaust Fans with Louvers

These fans come complete with a movable-blade louver. The louvers are gravity operated so they open only when air flows through them, which prevents backdrafts. Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged. Use these fans to draw stagnant and humid air out of a room or area.

Fans with an open dripproof motor enclosure are for relatively clean, dry, indoor locations. Fans with a totally enclosed motor enclosure can be used in dirty, dusty, and damp environments.

For technical drawings and 3-D models, click on a part number.

Exhaust Fans

Fan

						For Opening		Overall
Blade Dia.	Airflow, cfm	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Ht.	Wd.	Dp.	Wt., lbs.	Max. Ambient Temperature	Housing Material	Frame Material	Blade Material	Mount. Fasteners Included	Mount. Hole Dia.		Each
Open Dripproof Motor Enclosure
120V AC, Single Phase—Hardwire
48"	14,900	57 dB @ 5 ft.	350	1	1	55"	55"	54 1/2"	54 1/2"	19"	266	104° F	Steel	Steel	Steel	No	3/16"	0000000	000000000
Totally Enclosed Motor Enclosure
230/460V AC, Three Phase—Hardwire
48"	14,900	57 dB @ 5 ft.	350	1	1	55"	55"	54 1/2"	54 1/2"	25"	324	104° F	Steel	Steel	Steel	No	3/16"	0000000	00000000

Replacement Belts

Replacement Belt

Single Phase
For Blade Dia.		Each
48"	00000000	000000
Three Phase
48"	00000000	00000

Replacement Fan Blades

Replacement Fan Blade

Blade
Dia.	Material	No. of		Each
Single, Three Phase
48"	Galvanized Steel	4	00000000	0000000

Replacement Motors

Replacement Motor

Single Phase
For Power, hp		Each
1	0000000	0000000
Three Phase
1	0000000	000000

Supply-Side Guards for Wall-Mount Exhaust Fans

Protect the supply side of your wall-mount exhaust fans from debris.

For technical drawings and 3-D models, click on a part number.

	Overall
For Blade Dia.	Ht.	Wd.	Dp.	Material	Mounting Fasteners Included		Each
48"	54 1/2"	54 1/2"	36 1/2"	Galvanized Steel	Yes	00000000	000000000

Direct-Drive Upblast Roof-Mount Exhaust Fans

Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. These exhaust fans draw stagnant and humid air out through your roof and then expel it up and away from the roof surface. All fans have a disconnect switch to turn off the power for servicing.

Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water.

For technical drawings and 3-D models, click on a part number.

Fans
						Overall								Mounting Bases
	Blade Dia.	Airflow @ Static Pressure	Volume	Motor Speed, rpm	Power, hp	Dia.	Ht.	Base Wd.	Wt., lbs.	Max. Ambient Temp., °F	Housing Material		Each		Each
Totally Enclosed Motor Enclosure
460V AC, Three Phase—Hardwire
2	48"	25,500 cfm @ 1/2 in. of H₂O 34,300 cfm @ 0 in. of H₂O	76 dBA @ 5 ft.	1,150	5	56"	38 3/4"	60"	650	120°	Steel	0000000	000000000	0000000	0000000

Hazardous Location Upblast Roof-Mount Exhaust Fans

With a UL-listed motor, these fans can be used in hazardous environments with combustible gases and dust to draw stagnant and humid air out through your roof, forcing it up and away from its surface.

Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance.

Belt-drive fans are quieter and last longer than direct-drive fans because their components can be replaced if they’re worn or damaged.

For technical drawings and 3-D models, click on a part number.

Direct-Drive Exhaust Fans

Fans
					Overall									Mounting Bases
Blade Dia.	Airflow @ Static Pressure	Volume	Motor Speed, rpm	Power, hp	Dia.	Ht.	Base Wd.	Wt., lbs.	Max. Ambient Temp., °F	Housing Material	Environmental Rating		Each		Each
Totally Enclosed Motor Enclosure
240/460V AC, Three Phase—Hardwire
48"	31,600 cfm @ 1/2 in. of H₂O 36,200 cfm @ 0 in. of H₂O	89 dBA @ 5 ft.	1,150	7 1/2	57"	37"	60"	670	100°	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	0000000	000000000	0000000	0000000

Belt-Drive Exhaust Fans

Fans
					Overall									Mounting Bases
Blade Dia.	Airflow @ Static Pressure	Volume	Motor Speed, rpm	Power, hp	Dia.	Ht.	Base Wd.	Wt., lbs.	Max. Ambient Temp., °F	Housing Material	Environmental Rating		Each		Each
Totally Enclosed Motor Enclosure
240/460V AC, Three Phase—Hardwire
48"	28,600 cfm @ 1/2 in. of H₂O 36,700 cfm @ 0 in. of H₂O	80 dBA @ 5 ft.	1,750	5	57"	37"	60"	840	100°	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	0000000	000000000	0000000	0000000

Hazardous Location Exhaust Fans

These fans have a motor that is UL listed for hazardous environments. Use them to draw stagnant and humid air out of a room or area.

Belt-drive fans are quieter and last longer than direct-drive fans because their components can be replaced if they’re worn or damaged. They come with collars, so you can connect these fans to a louver.

For technical drawings and 3-D models, click on a part number.

							Overall
Blade Dia.	Airflow, cfm	Volume	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Dp.	Housing Material	Blade Material	Environmental Rating	Includes		Each
120/230V AC, Single Phase—Hardwire
48"	19,100	70 dBA @ 10 ft.	Belt	1,725	1	3/4	52 3/4"	52 3/4"	30"	Steel	Aluminum	NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups F, G	Collar	0000000	000000000

Fan Blades

Keyway

Replace worn and damaged fan blades. Use the included set screw or shaft collar to fasten a blade to your fan's shaft. Fan blades with a keyway are for use on motors with a keyed shaft. For difficult-to-remove hubs and fan blades, use fan blade pullers (not included).

Style E blades are cupped to create a focused stream of high airflow.

For technical drawings and 3-D models, click on a part number.

	Blade
Style	Dia.	Number of	Pitch	Rotation	For Maximum Motor Speed, rpm	Airflow @ Max. Motor Speed, cfm	Power @ Max. Motor Speed, hp	Hub Material	Includes		Each
Galvanized Steel
For Keyed Shaft with 1/2" Diameter
E	48"	4	39°	Clockwise	525	24,900	2.5	Steel	Shaft Collar	000000000	0000000
For Keyed Shaft with 5/8" Diameter
E	48"	4	39°	Clockwise	525	24,900	2.5	Steel	Shaft Collar	000000000	000000
For Keyed Shaft with 7/8" Diameter
E	48"	4	39°	Clockwise	525	24,900	2.5	Steel	Shaft Collar	000000000	000000
E	48"	6	34°	Clockwise	500	28,200	3.6	Steel	Shaft Collar	000000000	000000
For Keyed Shaft with 1" Diameter
E	48"	4	39°	Clockwise	525	24,900	2.5	Steel	Shaft Collar	000000000	000000
E	48"	6	34°	Clockwise	500	28,200	3.6	Steel	Shaft Collar	000000000	000000
For Keyed Shaft with 1 3/16" Diameter
E	48"	4	39°	Clockwise	525	24,900	2.5	Steel	Shaft Collar	000000000	000000
E	48"	6	34°	Clockwise	500	28,200	3.6	Steel	Shaft Collar	000000000	000000
For Keyed Shaft with 1 3/8" Diameter
E	48"	4	39°	Clockwise	525	24,900	2.5	Steel	Shaft Collar	000000000	000000

High-Output Mobile Evaporative Air Coolers

13,250 Cfm and 22,000 Cfm

Nema 5-15

Produce twice as much cool air as standard mobile evaporative air coolers. Also known as swamp coolers, use these air coolers wherever air conditioning is impractical. They take in water, which soaks into pads. When air is blown through the wet pads, the evaporation produces cool air.

Replacement pads are sold separately.

Air Coolers
							Overall			Inlet Hose			Pads				Replacement Pads
Blade Dia.	Airflow, cfm	Reservoir Cap., gal.	Motor Speed, rpm	No. of Speeds	Power, hp	Current, A	Ht.	Wd.	Dp.	Size	Thread Type	Housing Material	No. Required	No. Included		Each	Pkg. Qty.		Pkg.
120V AC, Single Phase—NEMA 5-15, Three-Prong Plug
48"	22,000 cfm	66	1,900	Variable	1	14.7	90"	78"	39"	3/4	GHT	Plastic	6	6	0000000	000000000	6	00000000	0000000