- Detachable steel mounting feet
- Rigid one-piece cast iron casing
- Anti-friction bearings
- Splash lubricated spur timing gears and drive end bearings
- Connections in standard pipe sizes

Heavy-duty, versatile, bi lobe rotary blower
The ROOTS® Universal RAI™ DSL (Dual Splash Lubricated) blower is a heavy‑duty, versatile rotary blower designed for flexible installation and dependable performance. Detachable, rugged steel mounting feet allow easy in‑field adaptation to vertical or horizontal configurations, with four available drive shaft positions: right, left, bottom, or top.
The DSL model features Dual Splash Lubrication on both the gear end and drive end, supporting cooler operation and greater reliability.
- Pressures to 15 psig (1034 mbar)
- Vacuums to 16” Hg (539 mbar)
- Flows to 1740 cfm (2956 m3/hr)
- Available with metric drive shaft and pipe connections
Benefits
- Versatile Mounting Options: Four drive shaft positions—right, left, bottom, or top.
- Durable Construction: Compact, sturdy design supports continuous service within rated speed and pressure limits.
- Robust Components: Cast iron casing, alloy steel gears, and cast iron impellers.
- Enhanced Bearing Strength: Oversized antifriction bearings and cylindrical roller bearing withstand V‑belt pull.
- Efficient Lubrication System: Dual splash lubrication on both ends enhances gear and bearing life.
- Quality Assurance: Protective paint, testing, and careful packaging maintain product integrity.
- Customizable Accessories: Wide range of accessories available to support performance needs.
Performance and Data Sheets
How Dual Splash Lubrication Helps Create a Quiet DSL Blower
The Universal RAI DSL blower uses Dual Splash Lubrication on both the gear end and drive end. This lubrication method supports quieter, smoother operation by:
- Reducing friction between gears and bearings
- Supporting cooler operation, which helps maintain stable running conditions
- Minimizing mechanical noise sources during continuous duty
- Improving gear and bearing life, reducing noise caused by wear
- Supporting smoother timing gear engagement
