The Model MT Medium Duty Trolley Operator is designed for use on standard lift sectional doors up to 14 feet high and up to 12 cycles per hour.
Liftmaster operators are available with a variety of horsepower systems as well as an assortment of features and accessories. Their belt drive systems offer the ultimate in reliability and quiet performance, while their chain drive operators are rugged, reliable and their most popular drive system ever. LiftMaster screw drive systems are sleek and powerful, providing both performance and lifting power.
The Model MJ Door Operator is designed for use on industrial sectional doors with high or vertical lift and on small rolling doors and grilles. Maximum recommended duty cycle: 12 cycles per hour.
T-style trolley commercial door operators are optimal for general industrial applications.
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.