ROOTS™ 59 Universal RAI DSL

Model: 59 URAI DSL

The ROOTS™ 59 Universal RAI DSL blower delivers airflow to 857 CFM with operating pressures to 7 PSI, vacuum capability to 15" Hg, and maximum operating speeds of 2850 RPM. Built with a rigid one-piece cast iron casing, 1.125″ ground steel shafts, precision-machined bi-lobe impellers, and carburized alloy steel timing gears, this dual splash lubricated blower supports continuous-duty industrial performance with operating temperatures to 225°F, 4″ FPT connections, oversized anti-friction bearings, cylindrical roller bearing support, and optimized oil distribution through Howden’s exclusive figure-eight gearbox design.

Key Specifications

Max Flow

857 CFM

Max Pressure

7 PSI

Max Vacuum

15" Hg

Maximum RPM

2850 RPM

Minimum RPM

763 RPM

Manufacturer

Roots

IO&M Manuals

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Literature

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Technical Details

Universal RAI DSL Blower

ROOTS™ Model 59 URAI DSL

Model: Roots Model 59 URAI DSL

Flow Range: to 857 CFM

Max Δ Pressure: 7 psi

Max Δ Vacuum: 15″ Hg

Max ΔT: 225˚F

Connection Size: 4″ FPT

Shaft Diameter: 1.125″

Drive End Lubrication: Oil

Gear End Lubrication: Oil

Required Oil Gear End Horizontal Unit: 27.6 ounces

Required Oil Drive End Horizontal Unit: 14.8 ounces

Required Oil Gear End Vertical Unit: 16 ounces

Required Oil Drive End Vertical Unit: 7.5 ounces

Unit Weight: 209 pounds (95 kg)

59 Universal RAI DSL Blower Design & Construction Features

Steel detachable mounting feet

Rigid one-piece cast iron casing

Anti-friction bearings

Splash oil lubricated spur timing gears

Splash oil lubricated drive end bearings

Balanced precision-machined bi-lobe impellers

Ground steel shafts

Cylindrical roller bearing for V-belt load support

Two shaft-mounted oil slingers

Howden figure-eight gearbox design

3/8″ oil level sight glasses

Standard pipe size connections

Accessories

Available accessories include driver packages, inlet and discharge silencers, relief valves, inlet filters, check valves, extended bases, V-belt drives, flexible couplings, drivers, and drive guards.

Warranty Information

Roots URAI DSL blowers are backed by a 2-year warranty with an additional 6 months covering shipping and construction where applicable. ROOTS synthetic lubricants are recommended to maximize lubricant life and long-term blower reliability. Oil sight glasses are provided for accurate oil level monitoring during operation.