A swing door operator or swing-door opener, automatic swing door operator is a device that operates a swing door for pedestrian use. It opens or helps open the door automatically, waits, then closes it.
There are 3 basic types of swing door operators:
Full Energy – opens and closes the door at full speed.
Low Energy – opens and closes the door at reduced speed to limit the kinetic energy of the moving door to levels deemed safe for disabled users. This version of door operator, does not require any sensors as they are not considerate dangerous.
Power Assist – This is a version of the low-energy operator. It doesn’t open the door; instead, it lets the user open the door manually at a reduced force, compared to opening against a standard door closer. It closes the door with the same speed limitations as a low-energy operator.