The Sutorbilt Legend Series is widely selected by leading OEMs for applications requiring dependable positive displacement blower performance. Each unit is individually tested to meet strict performance requirements, ensuring reliable operation in continuous‑duty environments. With 20 available sizes and four configuration options, the Legend Series adapts to a broad range of industrial air and gas processes.
Bi-Lobe Blower

Sutorbilt Legend Blower
For more than 75 years, the Sutorbilt Legend Series has been a trusted name in positive displacement blowers, delivering reliable, continuous‑duty performance across demanding industrial air and gas applications. These PD blowers operate around the clock in facilities worldwide and remain a preferred choice for OEMs and end users seeking durability and consistency.
- Mechanical seal options for gas‑handling applications
- Cast‑iron, dynamically balanced bi‑lobe impellers machined for precise airflow performance
- High‑strength steel drive shaft designed for V‑belt or direct‑drive configurations
- Rigid, ribbed impeller case with oversized dowel pins for accurate alignment
- Anti‑friction bearings for smooth, long‑term operation
- High‑temperature Viton oil seals
- Gear‑end splash lubrication and drive‑end grease lubrication
- Grease‑lubricated models include a 24/18‑month warranty
- Manufactured under ISO 9001:2015 quality standards
- Available in 20 sizes with four configuration options
- Universal mounting feet for horizontal or vertical installation
- Offered in Dual Splash Lubricated (DSL) and Quiet Series (Q‑Series) designs
"Q" Series
- Quiet models: 3MQ, 4HQ, 4MQ, 5MQ, 6MQ
- Q‑Series reduces noise levels by up to 5 dBA
- High‑strength impeller case and specialized porting design help reduce vibration and discharge noise
DSL Legend
- Available in: 6H, 6M, 6L, 5H, 5M, 5L, 4H, 4M, 4L, 3H, 3M, 3L, 6MQ, 5MQ, 4MQ, 4HQ, 3MQ
- Dual Splash Lubrication (DSL) supports cooler operation and reduced maintenance
- Enhanced timing and locking components provide added strength and rigidity
- DSL models include a 30/24‑month warranty
- Cooler operating temperatures help extend blower life
- Designed to reliably handle continuous‑duty loads in PD blower applications
- Alloy steel timing gears maintain precise, non‑slip timing
- Gear and bearing lubrication support long‑term durability
- High‑strength drive shaft improves installation flexibility and blower longevity
- Heat‑dissipating cylinder fins help reduce noise and vibration
- High‑temperature seals support leak‑free performance in severe‑duty environments
- Universal foot and flex‑mount design simplify installation across applications
Understanding Positive Displacement Blowers
Positive displacement blowers move a consistent volume of air or gas with every rotation, making them ideal for applications requiring steady, reliable flow. The Sutorbilt Legend Series uses bi‑lobe impellers and precision‑machined components to deliver dependable performance in continuous‑duty environments.
Bi‑Lobe vs. Tri‑Lobe Designs
Bi‑lobe blowers, like the Sutorbilt Legend Series, are known for their simplicity, durability, and proven performance across a wide range of OEM applications. Tri‑lobe designs are often selected for specific noise or pulsation characteristics. The Legend Series supports noise‑sensitive environments through its Quiet (Q‑Series) option.
Choosing Between Q‑Series and DSL Models
Q‑Series:
- Reduced noise levels (up to 5 dBA)
- High‑strength impeller case and specialized porting
DSL Series:
- Dual Splash Lubrication for cooler operation
- HighEnhanced timing and locking components
- HighExtended 30/24‑month warranty
Sutorbilt Legend DSL Series PD Blower and Vacuum Pump Brochure
Industrial Blowers Brochure
Sutorbilt Legend Q Series Bi-Lobe & Tri-Lobe PD Blower Brochure
Conveying Solutions Brochure
Milling Solutions Brochure
Sutorbilt Legend Series PD Blower and Vacuum Pump Brochure
Water and Wastewater Treatment Solutions Brochure
Gardner Denver ... The Answer
Customers receive long‑term support from a global network of authorized distributors, a Master Distribution Center with extensive genuine parts inventory, a dedicated Remanufacturing Center, and skilled factory‑trained technicians.
- Strong PD blower warranties
- Authorized, factory‑trained PD blower distributors
- Genuine replacement parts
- 24‑hour PD blower service support
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