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For more than 100 years, the HOFFMAN™ and LAMSON™ brands have been recognized worldwide as leading manufacturers of multistage centrifugal blowers and exhausters. Our medium-flow centrifugal blowers feature inlet sizes up to 12 in. (30 cm.) with capacities ranging from 80 to 1,100 CFM (130 to 1,800 m3/h). Medium capacity multistage blowers and exhausters offer a highly powerful range of small to medium size units for use in diverse applications throughout industries like wastewater, oil, gas, and chemicals. Available with phenolic coating for hostile applications and environments where durability is of utmost importance.

To learn more, explore our portfolio of medium-flow multistage centrifugal blowers below. 

42 frame

Hoffman 42

Medium Flow Multistage Centrifugal Blower Inlet Flow: 100 to 1,550 CFM (170 to 2,630 m3/h) Discharge Pressure: 0.75 to 15 psig (0.05 to 1 bar g)

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510 frame

Lamson 510

Medium Flow Multistage Centrifugal Blower Inlet Flow: 220 to 1,630 CFM (380 to 2,800 m3/h Discharge Pressure: 0.5 to 12 psig (0.03 to 0.8 bar g)

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Lamson 550 Medium Flow Inlet

Lamson 550

Medium Flow Multistage Centrifugal Blower Inlet Flow: 270 to 1,900 CFM (2,300 to 15,000 m3/h) Discharge Pressure: 0.75 to 13 psig (0.05 to 0.9 bar g) Vacuum Range: 1.5 to 14 inHg (50 to 470 mbar)

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Medium Flow Inlet Blower HOFFMAN 732

Hoffman 732

Medium Flow Multistage Centrifugal Blower 600 to 3,060 CFM (1,020 to 5,200 m3/h) Discharge Pressure: 0.5 to 19 psig (0.03 to 1.3 bar g) Vacuum Range: 1 to 17 inHg (35 to 580 mbar)

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Hoffman 741 Medium Flow Inlet

Hoffman 741

Medium Flow Multistage Centrifugal Blower Inlet Flow: 1,100 to 4,050 CFM (1,870 to 6,900 m3/h) Discharge Pressure: 1 to 19 psig (0.07 to 1.3 bar g) Vacuum Range: 2 to 17 inHg (70 to 580 mbar)

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Hoffman 742 Medium Flow Inlet

Hoffman 742

Medium Flow Multistage Centrifugal Blower Inlet Flow: 1,250 to 5,400 CFM (2,100 to 9,100 m3/h) Discharge Pressure: 0.75 to 22 psig (0.05 to 1.5 bar g) Vacuum Range: 1 to 18 inHg (35 to 610 mbar)

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Hoffman 751 Medium Flow Inlet Blower

Hoffman 751

Medium Flow Multistage Centrifugal Blower Inlet Flow: 1,350 to 8,760 CFM (2,300 to 15,000 m3/h) Discharge Pressure: 1.75 to 15 psig (0.12 to 1 bar g) Vacuum Range: 3 to 15 inHg (100 to 510 mbar)

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850 frame

Lamson 850

Medium Flow Multistage Centrifugal Blower Inlet Flow: 550 to 4,000 CFM (930 to 6,800 m3/h) Discharge Pressure: 1 to 19 psig (0.07 to 1.3 bar g) Vacuum Range: 1.5 to 17 inHg (50 to 580 mbar)

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870 frame

Lamson 870

Medium Flow Multistage Centrifugal Blower Inlet Flow: 1,500 to 8,300 CFM (2,550 to 14,100 m3/h) Discharge Pressure: 2 to 26 psig (0.14 to 1.8 bar g) Vacuum Range: 3 to 19 inHg (100 to 640 mbar)

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1260 frame

Lamson 1260

Medium Flow Multistage Centrifugal Blower Inlet Flow: 1,300 to 10,000 CFM (2,200 to 16,900 m3/h) Discharge Pressure: 1 to 18 psig (0.07 to 1.2 bar g) Vacuum Range: 1 to 17 inHg (35 to 580 mbar)

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