Jackshaft (J) style commercial door operators are optimal for industrial applications. Doors used with this operator should be balanced with the ability to be manually lifted by hand in an emergency or power outage.
All LiftMaster Openers and Operators should be purchased through a Dealer and professionally installed.
Main Office: (814) 371-7358
Clearfield Office: (814) 762-8100
Punxsutawney Office: (814) 938-3332