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 >> Garage door opener
How garage door opener works
  1. Header sleeve
  2. Idler bracket
  3. Trolley
  4. Powered rail
  5. Chain cable or belt
  6. Hanging bracket
  7. Power cord
  8. Opener
  1. Light lens
  2. Manual release rope
  3. Curved door arm
  4. Straight door arm
  5. Door bracket
  6. Header bracket
  7. Trolley release (shown in engaged position)

The garage door opener(8) is install on the center line on top of the garage door, mounted to the ceiling on one side(6), and through the powered rail (4), mounted on the wall on the door side (1). Inside the powered rail is either a chain cable or a belt (5), connecting the motor of the opener to the door through a trolley (3) and a set of door arms (11 & 12). The opener is controlled by a micro computer with radio receiver. Its main function is to open or close the door quietly and safely. Modern opener can operate in soft-start-soft-stop mode, return on the light for an adjustable period of time, recognizes more than 10 transmitters in rolling code, smart enough to reverse upon obstruction, amount many other safety features.

Mechanically, the door locks itself once closed, and in case of power blackout, by pulling the trolley (10) connected to a handle by a rope, the door can be disengaged for manual operation.

mounted on a well balanced door and installed by Wonderlee professionals, the garage door opener can easily last more than 10 years, and will not go out of fashion.

LiftMaster opener kit

From the world's largest garage door opener manufacturer, LiftMaster opener is robust, reliable with enhanced safety and security features.

 Safety first
periodic test of garage door for safety compliance
Test your garage door periodically
 New product

Sleek Martin Aluminum garage door with glass panel
 Electric gate
Example of garden garage installed in Hong Kong, swing gate, remote control garden gate, automatic garden gate, automated swing gate
Open gate with remote control from your car
 Automated garage
choose your garage: sectional garage door, canopy garage door, rolling shutter garage door, idle garage for your house
How to choose the best garage

Some trouble could be DIY easily, other may need our professional help

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