ROOTS™ RAM™ Frame 412 Rotary Positive Blower

Model: RAM Frame 412

Among the highest-capacity units in the RAM™ Blowers series — spanning Frame 404 through 624 — the ROOTS™ RAM™ 412 Rotary Positive Displacement Blower is engineered for large-scale industrial airflow demands, delivering up to 1199 CFM, operating pressures to 15 PSI, vacuum to 16″ Hg, and speeds to 4000 RPM. Featuring a flanged 6″ FLG connection, alloy steel timing gears, cylindrical roller bearings, piston ring air seals, and splash oil lubrication, the RAM 412 is CNC-precision built for volumetric efficiency, reduced operating temperatures, and long-term serviceability in both horizontal and vertical installations.

Key Specifications

Max Flow

1199 CFM

Max Pressure

15 PSI

Max Vacuum

16″ Hg

Maximum RPM

4000 RPM

Minimum RPM

850 RPM

Manufacturer

Roots

IO&M Manuals

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Literature

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Technical Details

ROOTS™ RAM™ Frame 412

Model: Roots RAM Frame 412

Flow Range: to 1199 CFM

Max Δ Pressure: 15 psi

Max Δ Vacuum: 16″ Hg

Maximum RPM: 4000

Minimum RPM: 850

Max ΔT: 240˚F

Connection Size: 6″ FLG

Shaft Diameter: 1.5″

Drive End Lubrication: Oil

Gear End Lubrication: Oil

Required Oil – Horizontal Unit: 55 ounces

Required Oil – Vertical Unit: 27 ounces

Unit Weight: 330 pounds (150 kg)

RAM Frame 412 Design & Construction Features

Horizontal and vertical mounting configurations available

Improved volumetric efficiency with reduced operating temperatures

Alloy steel timing gears for sustained load durability

Cylindrical roller bearings for high-speed, long-service reliability

Piston ring air seals for effective pressure and vacuum containment

Splash oil lubrication for low-maintenance gear and drive end protection

Repositionable rugged steel mounting feet for adaptable installation

Die-cast aluminum drive end and gear covers for reduced weight and easier access

CNC-manufactured components ensuring consistent dimensional accuracy across service life

Warranty Information

The ROOTS™ RAM™ 412 Rotary Positive Displacement Blower is backed by a 24-month warranty from the date of original unit start-up, or 30 months from the date of original shipment — whichever comes first.