Apart from residential garage door opener, LiftMaster also produces commercial garage door opener that varies too. The Commercial opener from Liftmaster is Trolley Openers. The Trolley Openers are openers that used for lifting doors. The Trolley Openers are available in industrial, medium and light duty models.
The first commercial garage door opener from Liftmaster is The Industrial Trolley Opener or the Model T, it is used for standard lift sectional doors. The standard features of this opener are including drive reduction, emergency disconnect, torque motor with instant reverse and overload protection. You can choose a Model T with 1/3, ½, ¾ or 1 horsepower motor with single or three-phase. The opener is equipped with radio receiver and external radio control terminal, friction clutch and has a 2-year warranty.
The second commercial garage door opener from Liftmaster is the Medium Duty Trolley opener or the Model MT. This opener is intended to be used for standard lift sectional doors too. The standard features Model MT has a ½ horsepower single-phase motor. Equipped with auxiliary system and drive reduction. Its operator is a pre-wired so it will allow sensing device, photoelectric sensors, radio controls and most types of access control equipment to work with the opener. The opener rail is a dual L-rail track which is powerful made with exclusive nylon gliding chain, it is resulting a quiet and smooth operation of the rail. The company gives 2-year warranty for this opener.
The third opener is a light duty Trolley Opener, Model ATS211X. This opener is used to lift sectional doors with a height up to 14 feet high. The average cycle is 8 cycles per hour. The standard feature includes a ½ horsepower single-phase motor equipped with instant reverse system along with automatic reset thermal overload. The safety features are Automatic safety reverse/automatic door stop and the protector system non-impact infrared safety device. This opener uses Security+ anti burglary coding radio receiver as the security feature