Industrial Blower Knowledge Center & Resources

A blower is a mechanical device that moves air or gas at pressures higher than a fan but lower than a compressor. Blowers are commonly used for conveying, aeration, cooling, and ventilation across industries like wastewater treatment, chemical processing, and bulk material handling.

Rotary lobe blowers use rotating lobes to displace a consistent volume of air or gas. Gardner Denver offers bi-lobe, straight tri-lobe, and twisted tri-lobe designs, with different options for pulsation, noise, pressure, vacuum, and application requirements. Helical screw blowers use screw-shaped rotors to provide internal compression and can offer efficiency and higher-pressure advantages at suitable operating points. The right technology depends on required flow, pressure or vacuum, duty cycle, sound requirements, operating environment, and lifecycle priorities.

Service intervals depend on the application, but most industrial blowers benefit from routine inspection every 2,000–4,000 operating hours, with belt, filter, and lubrication checks more frequently. Explore maintenance and repair options →

Start with the required flow rate and pressure or vacuum. Then evaluate the application, material or gas, temperature, humidity, elevation, chemical exposure, space, sound requirements, duty cycle, energy use, and maintenance needs. Final equipment selection should use the applicable Gardner Denver performance data and application guidance. Talk to a specialist or explore our selection guides.

Gardner Denver industrial positive displacement blower options include bi-lobe, straight tri-lobe, twisted tri-lobe, and helical screw technologies, along with engineered blower packages. Each technology provides different operating characteristics for pressure, vacuum, flow, pulsation, noise, efficiency, and application fit.