Air Drying Blowers | McMaster-Carr

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.

High-Flow Low-Pressure Compressed Air Blowers

Also known as regenerative blowers, use these to produce high-flow compressed air with low pressure or vacuum to operate pump drives, lift tables, and conveying systems. Compressed air blowers are also used for drying, exhausting, and aeration.

Air circulates inside the blower housing to compress air, which generates pressure or vacuum. Single-stage blowers circulate air once and then exhaust. Two-stage blowers circulate air twice and then exhaust, creating higher pressure or vacuum than single-stage blowers with the same horsepower.

Inverter-rated blowers have a motor that can run at slow speeds without overheating, so they can be used with a motor speed control (variable frequency drive).

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

Single Stage

Blowers
						Overall				Pipe Size				Air-Intake Filters		Relief Valves
Maximum Pressure	Max. Flow Rate @ psi	Vacuum Rating	hp	Full Load Current	Vol., dB	Lg.	Wd.	Ht.	Temp. Range, ° F	Inlet	Outlet		Each		Each		Each
Single Phase, 120/208/230V AC
NPT Female Inlet and Outlet
1 psi 29 in. of H₂O	27 cfm @ 0	1.9 in. of Hg 27 in. of H₂O	1/8	2.3 A @ 115 V AC 1.2 A @ 208 V AC 1.2 A @ 230 V AC	57	9"	8"	9"	32° to 100°	1	1	0000000	0000000	00000000	0000000	00000000	0000000
1 psi 39 in. of H₂O	42 cfm @ 0	2.6 in. of Hg 35 in. of H₂O	1/3	3.8 A @ 115 V AC 2.0 A @ 208 V AC 1.9 A @ 230 V AC	63	10"	9"	9"	32° to 100°	1	1	0000000	000000	00000000	000000	00000000	000000
2 psi 42 in. of H₂O	52 cfm @ 0	3.0 in of Hg 40 in. of H₂O	1/2	6.0 A @ 115 V AC 3.2 A @ 208 V AC 3.0 A @ 230 V AC	68	13"	10"	10"	32° to 100°	1 1/4	1 1/4	0000000	000000	00000000	000000	00000000	000000
2 psi 52 in. of H₂O	92 cfm @ 0	3.5 in. of Hg 48 in. of H₂O	1	9.8 A @ 115 V AC 5.2 A @ 208 V AC 4.9 A @ 230 V AC	68	13"	11"	12"	32° to 100°	1 1/2	1 1/2	0000000	000000	00000000	000000	00000000	000000
2 psi 65 in. of H₂O	127 cfm @ 0	4.4 in. of Hg 60 in. of H₂O	1 1/2	17.5 A @ 115 V AC 10.0 A @ 208 V AC 9.0 A @ 230 V AC	74	16"	13"	14"	32° to 100°	1 1/2	1 1/2	0000000	00000000	00000000	000000	00000000	000000
Single Phase, 120/230V AC
NPT Female Inlet and Outlet
2 psi 56 in. of H₂O	57 cfm @ 0	3.8 in. of Hg 52 in. of H₂O	1/2	6.0 A @ 115 V AC 3.0 A @ 230 V AC	56	10"	10"	10"	5° to 100°	1 1/4	1 1/4	0000000	00000000	000000	00	000000	00
3 psi 72 in. of H₂O	148 cfm @ 0	5.3 in. of Hg 72 in. of H₂O	2 1/4	24.0 A @ 115 V AC 12.0 A @ 230 V AC	70	14"	13"	13"	5° to 100°	2	2	0000000	00000000	000000	00	000000	00
3 psi 76 in. of H₂O	102 cfm @ 0	5.3 in. of Hg 72 in. of H₂O	1 1/2	14.0 A @ 115 V AC 7.0 A @ 230 V AC	64	12"	11"	12"	5° to 100°	1 1/2	1 1/2	0000000	00000000	000000	00	000000	00
Three Phase, 190/230/380/460V AC (Inverter Rated)
NPT Female Inlet and Outlet
2 psi 56 in. of H₂O	103 cfm @ 0	4.1 in. of Hg 56 in. of H₂O	1	4.4 A @ 190 V AC 3.7 A @ 230 V AC 2.2 A @ 380 V AC 2.1 A @ 460 V AC	64	11"	11"	12"	32° to 100°	1 1/2	1 1/2	0000000	00000000	000000	00	000000	00
3 psi 79 in. of H₂O	150 cfm @ 0	6.5 in. of Hg 88 in. of H₂O	2 3/4	7.5 A @ 190 V AC 7.3 A @ 230 V AC 4.3 A @ 380 V AC 4.4 A @ 460 V AC	70	14"	13"	15"	32° to 100°	2	2	0000000	00000000	000000	00	000000	00
3 psi 92 in. of H₂O	221 cfm @ 0	7.1 in. of Hg 96 in. of H₂O	4 1/2	12.5 A @ 190 V AC 12.6 A @ 230 V AC 7.2 A @ 380 V AC 7.3 A @ 460 V AC	72	15"	15"	17"	32° to 100°	2	2	0000000	00000000	000000	00	000000	00
4 psi 116 in. of H₂O	150 cfm @ 0	7.7 in. of Hg 104 in. of H₂O	3 1/4	9.7 A @ 190 V AC 10.3 A @ 230 V AC 5.6 A @ 380 V AC 6.0 A @ 460 V AC	70	14"	13"	15"	32° to 100°	2	2	0000000	00000000	000000	00	000000	00
Three Phase, 208/230/460V AC
NPT Female Inlet and Outlet
2 psi 43 in. of H₂O	53 cfm @ 0	2.9 in. of Hg 40 in. of H₂O	1/2	2.0 A @ 208 V AC 2.0 A @ 230 V AC 1.0 A @ 460 V AC	68	11"	10"	10"	32° to 100°	1 1/4	1 1/4	0000000	000000	00000000	000000	00000000	000000
2 psi 52 in. of H₂O	92 cfm @ 0	3.5 in. of Hg 48 in. of H₂O	1	3.4 A @ 208 V AC 3.2 A @ 230 V AC 1.6 A @ 460 V AC	68	13"	11"	12"	32° to 100°	1 1/2	1 1/2	0000000	000000	00000000	000000	00000000	000000
2 psi 65 in. of H₂O	127 cfm @ 0	4.4 in. of Hg 60 in. of H₂O	1 1/2	5.1 A @ 208 V AC 4.9 A @ 230 V AC 2.5 A @ 460 V AC	74	14"	13"	14"	32° to 100°	1 1/2	1 1/2	0000000	00000000	00000000	000000	00000000	000000
Three Phase, 208/230/460V AC (Inverter Rated)
NPT Female Inlet and Outlet
4 psi 105 in. of H₂O	207 cfm @ 0	6.5 in. of Hg 88 in. of H₂O	5	13.0 A @ 208 V AC 12.0 A @ 230 V AC 6.0 A @ 460 V AC	72	19"	15"	15"	32° to 100°	2	2	0000000	00000000	00000000	000000	00000000	000000
4 psi 110 in. of H₂O	265 cfm @ 0	6.6 in. of Hg 90 in. of H₂O	6	16.0 A @ 208 V AC 15.0 A @ 230 V AC 7.5 A @ 460 V AC	79	17"	17"	18"	32° to 100°	2	2	0000000	00000000	00000000	000000	00000000	000000
5 psi 125 in. of H₂O	420 cfm @ 0	8.1 in. of Hg 110 in. of H₂O	10	35.0 A @ 208 V AC 29.5 A @ 230 V AC 15.0 A @ 460 V AC	78	22"	18"	20"	32° to 100°	2 1/2	2 1/2	0000000	00000000	00000000	000000	00000000	000000
Three Phase, 220/275/380/480V AC (Inverter Rated)
NPT Female Inlet and Outlet
2 psi 64 in. of H₂O	57 cfm @ 0	4.4 in. of Hg 60 in. of H₂O	1/2	2.6 A @ 200 V AC 2.6 A @ 275 V AC 1.5 A @ 380 V AC 1.5 A @ 480 V AC	56	10"	10"	10"	5° to 100°	1 1/4	1 1/4	0000000	00000000	000000	00	000000	00
Three Phase, 230/460V AC (Inverter Rated)
NPT Female Inlet and Outlet
4 psi 105 in. of H₂O	795 cfm @ 0	7.0 in. of Hg 95 in. of H₂O	18	52.0 A @ 230 V AC 26.0 A @ 460 V AC	79	29"	18"	20"	32° to 100°	2 1/2	4	0000000	00000000	00000000	000000	00000000	00000000

Two Stage

Blowers
						Overall				Pipe Size				Relief Valves
Maximum Pressure	Max. Flow Rate @ psi	Vacuum Rating	hp	Full Load Current	Vol., dB	Lg.	Wd.	Ht.	Temp. Range, ° F	Inlet	Outlet		Each		Each
Three Phase, 208/230/460V AC (Inverter Rated)
NPT Female Inlet and Outlet
5 psi 140 in. of H₂O	65 cfm @ 0	11.1 in. of Hg 151 in. of H₂O	2	5.8 A @ 208 V AC 5.2 A @ 230 V AC 2.8 A @ 460 V AC	72	16"	13"	14"	5° to 100°	1 1/4	1 1/4	0000000	000000000	0000000	0000000
5 psi 141 in. of H₂O	81 cfm @ 0	11.1 in. of Hg 151 in. of H₂O	3	8.3 A @ 208 V AC 7.4 A @ 230 V AC 4.0 A @ 460 V AC	73	16"	14"	15"	5° to 100°	1 1/4	1 1/4	0000000	00000000	0000000	000000

Compressed Air Flow Boosters

Adjustable

Fixed

Fixed with Flange

Create a high-flow air stream from your compressed air supply. Flow boosters draw in ambient air, which amplifies compressed air flow. To maximize performance and service life, install a filter inline before the booster to remove particles down to the maximum particle size. Use hose clamps (not included) to connect hose or duct to the inlet or outlet.

Adjustable boosters allow you to fine-tune the flow—rotate the knurled ring to change the amount of ambient air drawn into the booster.

Boosters with flange mount easily near your equipment.

	Input				Ambient Air Inlet		Outlet		Overall		Flange		Mounting Holes
Flow Input to Output Ratio	Flow Rate @ 90 psi	Pressure, psi	Output Flow Rate @ 90 psi	Max. Particle Size, µm	Connection Type	For Tube ID	Connection Type	For Tube ID	Lg.	Wd.	Ht.	Lg.	No. of	Dia.	Mounting Fasteners Included		Each
Adjustable
1/8 NPT Male Supply Inlet
1:6	13 cfm	5-150	35-65 cfm	20	Clamp On	0.75"	Clamp On	0.75"	2 9/16"	1"	__	__	__	__	__	00000000	000000
1:8	13 cfm	5-150	37-79 cfm	20	Clamp On	0.75"	Clamp On	0.75"	2 9/16"	1 1/8"	__	__	__	__	__	00000000	00000
1:12	25 cfm	5-150	155-250 cfm	20	Clamp On	1.125"	Clamp On	1.125"	2 5/8"	1 1/2"	__	__	__	__	__	00000000	00000
1/4 NPT Male Supply Inlet
1:15	28 cfm	5-150	200-400 cfm	20	Clamp On	1.5"	Clamp On	1.5"	3 1/4"	2"	__	__	__	__	__	00000000	000000
1:20	29 cfm	5-150	330-520 cfm	20	Clamp On	2"	Clamp On	2"	3 1/4"	2 1/2"	__	__	__	__	__	00000000	000000
1:22	40 cfm	5-150	380-840 cfm	20	Clamp On	2.5"	Clamp On	2.5"	4 5/8"	3"	__	__	__	__	__	00000000	000000
3/8 NPT Male Supply Inlet
1:25	51 cfm	5-150	700-1,200 cfm	20	Clamp On	3.5"	Clamp On	3.5"	5 1/4"	4"	__	__	__	__	__	00000000	000000
Fixed
1/8 NPT Female Supply Inlet
1:4	8 cfm	10-200	29.2 cfm	5	Clamp On	0.75"	Clamp On	0.75"	2 1/2"	1 3/8"	__	__	__	__	__	0000000	00000
1:4	8 cfm	10-200	29.2 cfm	5	Clamp On	1.33"	Clamp On	0.75"	2 1/8"	1 3/8"	__	__	__	__	__	0000000	00000
1:4	17 cfm	10-200	62 cfm	5	Clamp On	1.33"	Clamp On	0.5"	2 5/8"	1 3/8"	__	__	__	__	__	0000000	00000
Fixed with Flange
1/8 NPT Female Supply Inlet
1:10	6.5 cfm	5-150	42 cfm	20	Clamp On	0.98"	Clamp On	0.73"	2 3/16"	2 5/16"	1.3"	2.3"	2	0.2"	No	000000	00000
1/4 NPT Female Supply Inlet
1:15	11 cfm	5-150	155 cfm	20	Clamp On	1.5"	Clamp On	1.22"	2 3/4"	3"	1.9"	3"	2	0.27"	No	0000000	000000
3/8 NPT Female Supply Inlet
1:16	21 cfm	5-150	325 cfm	20	Clamp On	2.95"	Clamp On	2"	3 3/4"	4 1/8"	3.2"	4.1"	2	0.27"	No	0000000	000000
1/2 NPT Female Supply Inlet
1:17	42 cfm	5-150	615 cfm	20	Clamp On	4.92"	Clamp On	4"	7"	8 1/2"	5.9"	8.5"	2	0.53"	No	0000000	000000

Blowers

These blowers install in ductwork similar to duct fans, but are for use where high static pressures are present. Use them for equipment cooling, material conveying, drying, ventilating, and exhausting. All blowers have an open dripproof motor enclosure for relatively clean, dry, indoor locations.

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.

Blowers
				Outlet				Overall									Replacement Wheels
Airflow @ Static Pressure	Volume	Motor Speed, rpm	Power, hp	Ht.	Wd.	Inlet Dia.	Wheel Dia.	Ht.	Wd.	Dp.	Wt., lbs.	Temp. Range, °F	Mount. Fasteners Included	Mount. Hole Dia.		Each		Each
With Rectangular Outlet and Round Inlet—Open Dripproof Motor Enclosure
120V AC, Single Phase—Hardwire
300 cfm @ 3/4 in. of H₂O 515 cfm @ 1/4 in. of H₂O	45 dB @ 15 ft.	1,750	1/6	7 3/8"	4 1/4"	6"	6 1/4"	15 5/8"	15"	11"	28	-15° to 180°	No	3/8"	0000000	0000000	0000000	000000
120/230V AC, Single Phase—Hardwire
855 cfm @ 3/4 in. of H₂O 1,100 cfm @ 1/4 in. of H₂O	50 dB @ 15 ft.	1,140	1/3	10 3/4"	6 1/2"	9"	9"	18 5/8"	17 5/8"	14 7/8"	54	-15° to 180°	No	3/8"	0000000	000000	0000000	000000
865 cfm @ 3/4 in. of H₂O 1,000 cfm @ 1/4 in. of H₂O	50 dB @ 15 ft.	1,750	1/3	8 1/4"	5 3/8"	8"	7 3/4"	16 1/2"	16 1/4"	13 5/8"	44	-15° to 180°	No	3/8"	0000000	000000	0000000	000000
1,500 cfm @ 3/4 in. of H₂O 1,800 cfm @ 1/4 in. of H₂O	55 dB @ 15 ft.	1,150	3/4	11 3/4"	8"	10"	10 5/8"	22 1/2"	18 7/8"	17 1/4"	84	-15° to 180°	No	3/8"	0000000	00000000	0000000	000000
230/460V AC, Three Phase—Hardwire
300 cfm @ 3/4 in. of H₂O 515 cfm @ 1/4 in. of H₂O	45 dB @ 15 ft.	1,750	1/4	7 3/8"	4 1/4"	6"	6 1/4"	15 5/8"	15"	11"	34	-15° to 180°	No	3/8"	0000000	000000	0000000	00000
855 cfm @ 3/4 in. of H₂O 1,100 cfm @ 1/4 in. of H₂O	50 dB @ 15 ft.	1,150	1/3	10 3/4"	6 1/2"	9"	9"	18 5/8"	17 5/8"	14 7/8"	49	-15° to 180°	No	3/8"	0000000	000000	0000000	000000
865 cfm @ 3/4 in. of H₂O 1,000 cfm @ 1/4 in. of H₂O	50 dB @ 15 ft.	1,750	1/3	8 1/4"	5 3/8"	8"	7 3/4"	16 1/2"	16 1/4"	13 5/8"	37	-15° to 180°	No	3/8"	0000000	000000	0000000	000000
1,500 cfm @ 3/4 in. of H₂O 1,800 cfm @ 1/4 in. of H₂O	55 dB @ 15 ft.	1,150	3/4	11 3/4"	8"	10"	10 5/8"	22 1/2"	18 7/8"	17 1/4"	67	-15° to 180°	No	3/8"	0000000	000000	0000000	000000

Spark-Resistant Blowers

These blowers have an aluminum housing for spark resistance. Use them for equipment cooling, material conveying, drying, ventilating, and exhausting. All blowers have a totally enclosed motor enclosure, which can be used in dirty, dusty, and damp environments.

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.

							Overall
Airflow @ Static Pressure	Volume	Motor Speed, rpm	Power, hp	Outlet Dia.	Inlet Dia.	Wheel Dia.	Ht.	Wd.	Dp.	Temp. Range, °F	Mount. Fasteners Included	Mount. Hole Dia.		Each
With Round Outlet and Inlet—Totally Enclosed Motor Enclosure
120/230V AC, Single Phase—Hardwire
1,045 cfm @ 1/4 in. of H₂O	55 dB @ 15 ft.	1,150	1/3	8"	8"	8 1/4"	18 3/4"	14 3/4"	15 3/8"	0° to 150°	No	7/16"	0000000	000000000
1,070 cfm @ 1/4 in. of H₂O 995 cfm @ 1 in. of H₂O	70 dB @ 15 ft.	3,450	1 1/2	6"	6"	6 1/4"	14 1/8"	12 1/4"	13 1/4"	0° to 150°	No	7/16"	0000000	000000
295 cfm @ 1 in. of H₂O 505 cfm @ 1/4 in. of H₂O	55 dB @ 15 ft.	1,750	1/4	6"	6"	6 1/4"	14 1/8"	12 1/4"	13 1/4"	0° to 150°	No	7/16"	0000000	000000
320 cfm @ 1 in. of H₂O 375 cfm @ 1/4 in. of H₂O	60 dB @ 15 ft.	3,450	1/3	4"	5"	4 3/4"	12 5/8"	9 7/8"	12 1/4"	0° to 150°	No	7/16"	0000000	000000

Hazardous Location Spark-Resistant Blowers

These blowers have an explosion-proof motor that is UL listed for hazardous locations. They also have an aluminum housing for spark resistance. These blowers install in ductwork similar to duct fans, but are for use where high static pressures are present. Use them for equipment cooling, material conveying, drying, ventilating, and exhausting.

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.

							Overall
Airflow @ Static Pressure	Volume	Motor Speed, rpm	Power, hp	Outlet Dia.	Inlet Dia.	Wheel Dia.	Ht.	Wd.	Dp.	Temp. Range, °F	Mount. Fasteners Included	Mount. Hole Dia.		Each
With Round Outlet and Inlet
120/230V AC, Single Phase—Hardwire
295 cfm @ 1 in. of H₂O 505 cfm @ 1/4 in. of H₂O	55 dB @ 15 ft.	1,750	1/4	6"	6"	6 1/4"	14 1/8"	12 1/4"	13 1/4"	0° to 150°	No	7/16"	0000000	000000000
320 cfm @ 1 in. of H₂O 375 cfm @ 1/4 in. of H₂O	60 dB @ 15 ft.	3,450	1/3	4"	5"	4 3/4"	12 5/8"	9 7/8"	12 1/4"	0° to 150°	No	7/16"	0000000	00000000
995 cfm @ 1 in. of H₂O 1,070 cfm @ 1/4 in. of H₂O	70 dB @ 15 ft.	3,450	1 1/2	6"	6"	6 1/4"	14 1/8"	12 1/4"	13 1/4"	0° to 150°	No	7/16"	0000000	00000000
1,045 cfm @ 1/4 in. of H₂O	55 dB @ 15 ft.	1,150	1/3	8"	8"	8 1/4"	18 3/4"	14 3/4"	15 3/8"	0° to 150°	No	7/16"	0000000	00000000

Pivoting-Head Surface-Drying Fans

A pivoting head allows you to direct air where it's needed. Use these blowers to dry large flat surfaces such as floors with a concentrated stream of air.

						Outlet		Overall
Airflow, cfm	Volume	Motor Speed	No. of Speeds	Power, hp	Current, A	Ht.	Wd.	Ht.	Wd.	Dp.	Cord Lg., ft.	Housing Material	Specifications Met		Each
120V AC, Single Phase—Three Prong Plug
Oscillating
310	50 dB @ 15 ft.	1,475 rpm	3	1/16	0.8	3 1/4"	7"	11 1/4"	9 1/4"	13"	10	Plastic	ETL Listed	0000000	000000
350	67 dB @ 15 ft.	1,450 rpm	3	1/13	0.9	4 1/4"	8 3/8"	14 1/2"	11"	11 1/2"	10	Plastic	ETL Listed	0000000	000000
425	68 dB @ 15 ft.	Not Rated	3	1/11	1.1	4"	12"	15 1/4"	12"	15"	10	Plastic	ETL Listed	0000000	000000

Surface-Drying Fans

Dry large flat surfaces such as floors with a concentrated stream of air.

Fans

						Outlet		Overall
Airflow, cfm	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Current, A	Ht.	Wd.	Ht.	Wd.	Dp.	Cord Lg., ft.	Housing Material	Specifications Met		Each
120V AC, Single Phase—Three Prong Plug
Non-Oscillating
1,900	69 dB @ 15 ft.	1,550	3	3/5	4.0	4 3/4"	15 1/2"	19"	15 1/2"	18 3/4"	18	Plastic	C-ETL Listed, ETL Listed	0000000	0000000

Replacement Parts


Replacement Motor	Replacement Control Panel	Replacement Grill
	Replacement Kickstand	Replacement Knob	Replacement Switch

Component		Each
1,550 rpm Motor	00000000	0000000
Control Panel	00000000	00000
Grill	00000000	0000
Kickstand	00000000	0000
Knob	00000000	000
Switch	00000000	0000

Downdraft Surface-Drying Fans

To quickly dry flat surfaces, this fan directs air downward. Use it to dry large flat surfaces such as floors with a concentrated stream of air. It can also be turned on its side.

Fans

							Overall
	Airflow, cfm	Volume	No. of Speeds	Power, hp	Current, A	Outlet Dia.	Ht.	Wd.	Dp.	Cord Lg., ft.	Housing Material	Specifications Met		Each
115V AC, Single Phase—Three Prong Plug
Non-Oscillating
A	3,500	Not Rated	2	1/4	4.0	18"	23"	18"	22"	20	Plastic	__	0000000	0000000
120V AC, Single Phase—Three Prong Plug
Non-Oscillating
B	2,600	72 dB @ 15 ft.	Variable	1/2	2.7	20"	24"	24 3/8"	10 7/8"	15	Plastic	ETL Listed	0000000	000000

Replacement Parts

Replacement Motor for Style A

Replacement Caster Kit for Style A

Replacement Circuit Breaker for Style A

Replacement Fan Blade for Style A

Replacement Grill for Style A

Replacement Switch for Style A

Component		Each
3,500 rpm Motor	00000000	0000000
Caster Kit	00000000	00000
Circuit Breaker	00000000	0000
Fan Blade	00000000	00000
Grill	00000000	00000
Switch	00000000	0000