ROOTS™ 56 Universal RAI DSL

Model: 56 URAI DSL

The ROOTS™ 56 Universal RAI DSL blower delivers airflow to 580 CFM with operating pressures to 13 PSI, vacuum capability to 15" Hg, and maximum speeds of 2850 RPM. Engineered with a rigid one-piece cast iron casing, 1.125″ steel shafts, precision-machined bi-lobe impellers, and carburized alloy steel timing gears, this dual splash lubricated blower supports continuous-duty industrial operation with enhanced gear, bearing, and thermal performance to 225°F.

Key Specifications

Max Flow

580 CFM

Max Pressure

10 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 56 URAI DSL

Model: Roots Model 56 URAI DSL

Flow Range: to 580 CFM

Max Δ Pressure: 10 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: 175 pounds (79.5 kg)

56 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 loads

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 include a 2-year warranty with an additional 6 months for shipping and construction where applicable. ROOTS synthetic oil is recommended to maintain lubrication performance and extend service life. Oil sight glasses are provided for accurate oil level monitoring during operation.