ZURICH, March 15 (Reuters) - ABB (ABBN.S) is expanding its main US robot factory as its customers there in the automotive, packaging and machinery industries confront a tight labour market as they bring production back home. The United States is the third largest in the global robotics market, which is worth around $50 billion per year according to estimates by ABB and the International Federation of Robotics (IFR). Rapid growth is expected as US companies bring production closer to home to avoid logistic log jams which have gummed up supply chains since the global pandemic. A survey by ABB last year showed 70% of North American businesses suffered supply chain disruptions in the last year. "The potential for growth in the industrial robots market is huge," Atiya said.

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