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Roots URAI DSL Series

The URAI-DSL variant replaces the conventional oil pump with dual splash lubrication at both gear and drive ends, reducing maintenance and improving reliability. Both shafts are splash-lubricated via shaft-mounted oil slingers (drive end) and Roots' exclusive figure-eight gearbox design (gear end), delivering cooler operation and extended bearing and gear life. Ideal for applications where pump-driven systems are impractical or where cost and simplicity are priorities.

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New to Roots blowers? See our Industrial Rotary Lobe Blower overview

Roots Blowers

URAI DSL Models (11)

Roots URAI DSL 32 — Roots URAI DSL positive displacement blower

Roots URAI DSL 32

Bi-lobe URAI with Dual Splash Lubrication on both ends—no oil pump required

142 ICFM at 15 PSIG

Roots URAI DSL 33 — Roots URAI DSL positive displacement blower

Roots URAI DSL 33

Bi-lobe URAI with Dual Splash Lubrication on both ends—no oil pump required

195 ICFM at 12 PSIG

Roots URAI DSL 36 — Roots URAI DSL positive displacement blower

Roots URAI DSL 36

Bi-lobe URAI with Dual Splash Lubrication on both ends—no oil pump required

330 ICFM at 7 PSIG

Roots URAI DSL 42 — Roots URAI DSL positive displacement blower

Roots URAI DSL 42

Bi-lobe URAI with Dual Splash Lubrication on both ends—no oil pump required

142–857 ICFM across frame sizes 32–68

Roots URAI DSL 45 — Roots URAI DSL positive displacement blower

Roots URAI DSL 45

Bi-lobe URAI with Dual Splash Lubrication on both ends—no oil pump required

395 ICFM at 10 PSIG

Roots URAI DSL 47 — Roots URAI DSL positive displacement blower

Roots URAI DSL 47

Bi-lobe URAI with Dual Splash Lubrication on both ends—no oil pump required

523 ICFM at 7 PSIG

Roots URAI DSL 53 — Roots URAI DSL positive displacement blower

Roots URAI DSL 53

Bi-lobe URAI with Dual Splash Lubrication on both ends—no oil pump required

343 ICFM at 15 PSIG

Roots URAI DSL 56 — Roots URAI DSL positive displacement blower

Roots URAI DSL 56

Bi-lobe URAI with Dual Splash Lubrication on both ends—no oil pump required

580 ICFM at 13 PSIG

Roots URAI DSL 59 — Roots URAI DSL positive displacement blower

Roots URAI DSL 59

Bi-lobe URAI with Dual Splash Lubrication on both ends—no oil pump required

857 ICFM at 7 PSIG

Roots URAI DSL 65 — Roots URAI DSL positive displacement blower

Roots URAI DSL 65

Bi-lobe URAI with Dual Splash Lubrication on both ends—no oil pump required

526 ICFM at 15 PSIG

Roots URAI DSL 68 — Roots URAI DSL positive displacement blower

Roots URAI DSL 68

Bi-lobe URAI with Dual Splash Lubrication on both ends—no oil pump required

845 ICFM at 14 PSIG

Need a Roots URAI DSL quote?

Authorized Roots distributor since 1961. Tell us your CFM, pressure, and application — we'll size the blower, quote the package, and support it for the life of the unit. See our Roots service center.

Request a Quote Call (800) 955-6188

URAI DSL Series Specifications

Capacity Range: 142–857 ICFM across frame sizes 32–68
Max Pressure: 15 PSIG
Max Vacuum: 16 in.Hg
Max Speed: 3600 RPM (smaller frames); 2350 RPM (larger frames)
Connection Sizes: 2.0–4.0 in. FPT / flange
Gearing: Carburized and ground alloy steel spur gears with figure-eight layout

Typical Applications

Wastewater aeration with minimal maintenance
Pneumatic conveying systems
Industrial vacuum applications
Applications where pump-driven lubrication is impractical
High-reliability continuous-duty operations

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