SCREW DRIVE OPERATORS
3240 1/2 HP SCREW DRIVE GARAGE DOOR OPENER
The 3240 1/2 HP Screw Drive Garage Door Opener is smooth-running, even in the most extreme temperatures, and is the perfect choice if you want the latest advancements in smooth-running performance with a completely maintenance-free drive system. Our engineers replaced the two-piece plastic liner and aluminum rail system with a stronger, simpler one-piece galvanized steel rail, resulting in reduced friction and eliminating binding and the need for lubrication. And the 1/2 HP motor is equipped with our patented Motor Vibration Isolation System (MVIS®) to reduce noise and provide smooth operation year after year.
3130 1/3 HP SCREW DRIVE GARAGE DOOR OPENER
Even in the most extreme temperatures, the LiftMaster® 3130 1/3 HP Screw Drive Garage Door opener is dependable and smooth running. A stronger, simpler one-piece galvanized steel rail system – our exclusive design – means less friction, no binding, and no lubrication, and more peace of mind.