Commercial Motor Operators

R&S offers a wide variety of commercial motor operators to automate any of your commercial grade doors. We offer new construction installations as well as retrofits and replacements. R&S has a motorized solution for you! Email us today for a free estimate on commercial motor operators.
R&S Provides Motor Operators by Powermaster Which Include The Following Features:

  • All models U.L. listed
  • 115/230 volt – 1 phase or 208/230/460 volt – 3 phase
  • Full overload protection
  • Heavy duty reversing controller
  • Instant reverse motor wiring on single phase
  • 3-button NEMA 1 control station
  • 24 volt control circuit
  • Heavy duty driven limits
  • Right or left hand / brackets or wall mount
  • MG operators available with solid state controller
  • Wired standard with constant pressure to close

Model ‘H’ Belt Drive Hoist Operator:

Liftmaster H
  • For use on sectional doors with high lift or vertical lift and rolling service doors and grilles.
  • Heavy duty V-belt drive with adjustable friction clutch and posi-lock brake system.
  • Continuous-duty high-starting torque motor with instant reverse and overload protection.
  • Available in 1/3, 1/2, 3/4 and 1 horsepower.

Liftmaster-H-SellSheet
Click Here for the Brochure

Model ‘MG’ Gear Drive Hoist Operator:

  • For use on all rolling doors and grilles in standard usage or high-cycle applications.
  • Floor level disconnect with electrical interlock for manual chain hoist operation.
  • Heavy-duty bronze gears running in oil bath.
  • Electric solenoid brake.
  • Magnetic reversing contactor
  • Available in 1/2, 3/4, 1, 1/2, 2 and 3 horsepower.

Model ‘T’ Drawbar Operator

Liftmaster model T
  • For use on all standard lift sectional doors.
  • Heavy duty V-belt drive and chain reduction
  • Adjustable torque limiting clutch
  • Positive chain driven rotary limit switches
  • Drawbar disconnect
  • Available in 3/4 and 1 horsepower.

Liftmaster-T-SellSheet
Click Here for the Brochure

Model ‘J’ Belt Drive Jackshaft Operator:

Liftmaster Model J
  • For use on small rolling doors and small to medium size rolling grilles in standard usage applications.
  • Floor level disconnect for manual push-up operation.
  • Includes heavy duty V-belt drive with adjustable friction clutch and posi-lock brake system. Available in 1/3, 1/2, and 3/4 horsepower.
  • Compatible with Emergency Egress System

Liftmaster-J-SellSheet
Click Here for the Brochure

Model ‘GJ’ Gear Drive Jackshaft Operator:

  • For use on small rolling doors and grilles and all counter and counter fire doors.
  • Adjustable torque limited with disconnect for manual push-up operation.
  • Includes bronze gears running in oil bath.
  • Compact belt drive jackshaft operator with 1 button control
  • (Model SJ) is also available for use on counter and small rolling grilles in limited usage applications (115 volt – 1 phase only)