Multistage Fabricated Centrifugal Blowers

Standard Designs of Multistage Fabricated Blowers

At MPI Sowerby Engineering, we design and manufacture our blowers to operate efficiently, quietly, and, above all, reliable. Our multistage fabricated blowers come in many different models and styles to meet the needs of almost any industrial, commercial or institutional application.
Overall, our blowers follow one of three basic design categories:

  • Standard Overhung (SOH): Multistage fabricated centrifugal blowers are manufactured with their impellers mounted on an extended motor shaft
  • Four-Bearing Overhung (4BOH): Multistage fabricated centrifugal blowers are manufactured with their impellers mounted on a shaft that’s coupled to the motor shaft
  • Four-Bearing Outboard (4BOB): Multistage fabricated centrifugal blowers are manufactured with their impellers mounted on a shaft that’s supported at both ends by self-aligning ball bearings, coupled to the motor shaft

Note that SOH and 4BOH models are highly recognizable for the trademarked profile of their housings, which are shaped like a “sugar scoop.” These blowers are among our oldest and most popular products. For our customers, these machines’ sugar scoop profiles are a visual reminder that more than a century of quality control and design experience goes into every  blower we manufacture.