industrial strength
In information technology, industrial strength is a characteristic sometimes ascribed to a hardware or software product or a system to describe its ability to work capably and dependably in the operational world of business. Prior to the advent of today's information technology revolution, the term was used to describe such products as cleansers, lubricants, and stepladders, suggesting that they would be effective in hard use environments.
In mainframe computers, IBM's flagship operating system z/OS and predecessor systems OS/390 and MVS are sometimes described as having industrial strength. Also see a similar term, robust .