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HOFFMAN & LAMSON multistage centrifugal blowers are engineered to deliver exceptional efficiency, long-term reliability, and quiet operation across demanding applications. Each multistage centrifugal air blower provides consistent, oil-free, pulse-free airflow, making it an ideal solution for wastewater treatment, industrial processing, aeration, and clean air systems. With more than 100,000 multistage blowers operating worldwide, Hoffman & Lamson technology is trusted by engineers and plant operators for proven, dependable performance.
Every multistage blower is precision-balanced and manufactured using high-grade materials to ensure extended service life, reduced vibration, and minimal maintenance requirements. Our advanced MAXSeal upgrade further enhances safety, efficiency, and durability in challenging gas-handling and industrial environments. When performance, efficiency, and reliability matter most, Hoffman & Lamson multistage centrifugal blowers deliver results you can count on. For over a century, the HOFFMAN™ and LAMSON™ brands have been globally recognized as industry leaders in centrifugal blowers and exhausters. Hoffman & Lamson multistage centrifugal blower solutions are designed for processes requiring uniform pressure, steady airflow, and oil-free operation, commonly found in air and gas handling, wastewater treatment, industrial processing, and a wide range of aeration applications.<
For more than 100 years, the HOFFMAN™ and LAMSON™ brands have been recognized around the world as the best providers of centrifugal blowers and exhausters. Hoffman & Lamson offers solutions for processes that require uniform pressure, pulse-free flow, and oil-free operation commonly found in air and gas, industrial processing, wastewater treatment, and other aeration applications.
To learn more, review our portfolio of multistage centrifugal blowers below.
Multistage centrifugal blowers are rotating machines able to increase the pressure of air or gasses, by means of the centrifugal force normally transmitted by an electric motor.
1. Multiple Baffle Rings - Guides airflow smoothly into the eye of the impeller, dramatically reducing inlet passage losses. When combined with the two-dimensional impeller design increases blower efficiency and pressure/vacuum capability.
2. Balance Piston - Negates axial force and reduces pressure on the drive bearings, increases rotor bearing life, and minimizes leakage of compressed gas.
3. Multistage Shrouded Impellers - Two-dimensional shrouded cast aluminum impellers are balanced individually and keyed onto the shaft. On most blowers, the complete assembly is then balanced to achieve smooth operation with the lowest vibration levels in the industry. Rotor assemblies are designed to operate well below the first critical speeds for added reliability.
4. Flexible Coupling - Blowers and exhausters connect directly to the power source with a precision aligned flexible coupling. This optimizes power transfer and minimizes bearing loads for longer life.
5. Cast Housing - Blower housings are precision machined from high-grade cast iron. Smaller models are cast aluminum. The intermediate blower sections are assembled using high strength steel rods. The blower and its driver are mounted together on a single steel baseplate. This assures long-lasting performance and durability.
6. Labyrinth Seal - Minimizes leakage of gas throughout stages and stops airflow from reversing.
7. Carbon Ring Seal/MAXSeal (Mechanical Axial) - For special air and gas applications requiring superior sealing, optional carbon ring seals are available with a purge option.
7A. MAX Seal - An innovation in dry seal technology that reduces fugitive emissions by up to 67% when compared to traditional seal options. Ideal for landfill gas and applications handling toxic and explosive gases. Improves the safety of your operation while extending bearing life and lowering the total cost of ownership.
To learn more about our MAXSeal Upgrade, click the button below.
Equipment is tested prior to reaching the customer or end-user. This ensures top quality and avoids unforeseeable issues or operational downtime. Therefore, upholding Hoffman & Lamson’s strong reputation as the global leader of engineered solutions and producing premier quality products efficiently and economically. There are over 100,000 HOFFMAN & LAMSON multistage centrifugal blowers and exhausters in operation worldwide.