There are countless situations in which it's needed a handling manipulator. It is impossible to define all!
It should be highlighted that the risk for an operator can be disregarded only if the load is less than 3 kg - 6.6 lb and of limited size.
You shouldn't think that a manipulator is suitable only when the load is heavy, bulky or difficult to handle. The products you can handle with ATIS manipulators are not only heavy, but there are many other reasons to use an ATIS manipulator: