The ARC Mate 120iB series is a six- axis, modular construction, electric servo-driven family of robots designed for precise, high-speed welding and cutting. Based on their simple and reliable construction, the ARC Mate 120iB and ARC Mate 120iB/10L provide accurate and consistent path performance necessary for welding and cutting. The R-J3iB Controller and easy-to- use ArcTool software, standard with the ARC Mate series robots, provide reliable performance with high productivity See below link for the data sheet. http://www.antenen.com/htdocs/downloads/files/files_dl/ArcMate%20120iB.pdf