ROOTS RCS Series Rotary Positive Blowers

ROOTS RCS Rotary Blower

RCS Frames 817, 824 and 827 Roots Rotary Blower. Unit is available in 3 different models. All models feature detachable mounting feet which allow the unit to be mounted in four different configurations. Piston ring seals reduce leakage through the shaft openings in the headplates. Lip type seals prevent lubrication from entering the air chamber. All units are center timed to allow rotation in either direction.

Flow Range: 982 CFM to 4822 CFM
Pressure Range: 1 psi to 18 psi
Vacuum Range: 1” to 16”Hgg (Dry)


Roots RCS rotary blowers are heavy-duty units designed with integral-shaft ductile iron impellers having an involute profile. The headplates, gear cover, end cover and rigid, one-piece casing are grey iron. Carburized and ground alloy steel spur timing gears are taper mounted on the shafts, secured with a locknut. Cylindrical roller bearings are used on the drive end with ball bearings on the gear end.

Piston rings reduce air leakage through the shaft openings in the headplates, and lip-type oil seals prevent lubricant from entering the air chamber. The RCS rotary blower incorporates thrust control, with splash oil lubrication at both ends of the blower.

All units are designed with detachable rugged steel mounting feet which permit in-field adaptability to either vertical or horizontal installation requirements.

The top shaft is extended for drive on side outlet blowers, and either shaft can be extended for drive on top or bottom outlet blowers. All frame sizes are center-timed to allow rotation in either direction.


  1. Center-timed for rotation in either direction

  2. Alloy steel timing gears

  3. Cylindrical roller bearings (Ball bearings on drive end of 800 frame sizes)

  4. Piston ring air seals

  5. Lip-type oil seals

  6. Splash oil lubrication

  7. High volumetric efficiency

  8. Horizontal and vertical configurations available

Warranty: Twenty-four months of operation or thirty months from date of original purchase.