Tesla has acquired Perbix, a longtime supplier that’s based its manufacturing operations around automated systems. The purchase will help Tesla boost its own manufacturing capabilities, specifically those utilizing robots. Its acquisition of Perbix comes after Tesla acquired Grohmann Engineering, a German automation specialist, last year.

It’s been working to heavily automate its electric vehicle manufacturing. Tesla’s newest vehicle, the Model 3, is encountering production delays due to inadequate automated battery manufacturing, leading to a temporary reliance on manual labor.

Perbix began working with Tesla three years ago. It’s supplied the automaker with manufacturing tools, including one for making drive-unit rotors.