Robot & Automation
Industrial robots are neither as fast nor as efficient as special-purpose automated machine tools. However, they are easily retrained or reprogrammed to perform an array of different tasks, whereas:
An automated special-purpose machine tool can work on only a very limited class of tasks, and designed to do one task very efficiently.

Choosing among HUMANS, ROBOTS, and AUTOMATION

Some rules can help suggest significant factors to keep in mind.
 The first rule to consider is known as the Four D’s of Robotics.
Is the task dirty, dull, dangerous, or difficult?
 The second rule recalls the fourth law of robotics: A robot may not leave a human jobless.
 A third rule involves asking whether you can find people who are willing to do the job.
 A fourth rule is that the use of robots or automation must make short-term and long-term economic sense.

A task that has to be done only once or a few times and is not dangerous probably is best done by a human.
A task that has to be done a few hundred to a few hundred thousand times, however, is probably best done by a flexible automated machine such as an industrial robot.
A task that has to be done 1 million times or more is probably best handled by building a special-purpose hard automated machine to do it.

Robot Industrial Application
Material handling applications, like:
   Material transfer applications
   Machine loading/unloading applications
Processing applications, for example:
   Welding
   Painting
Assembly.
Inspection.