noun
steel-collar worker; robot
A term from the 1980s contrasting with blue-collar and white-collar workers; refers to industrial robots or automated machinery replacing human labor. Now somewhat dated but still understood.
工場ではスチールカラーが人間の代わりに溶接作業を行っている。
In the factory, steel-collar workers (robots) are performing welding tasks instead of humans.
スチールカラーの導入で生産性が大幅に向上した。
The introduction of steel-collar workers greatly improved productivity.