Mitsubishi Electric Corporation MR-J4-70B Servo Drive

The Mitsubishi Electric MR-J4-70B Servo Drive delivers precise, high-speed servo motor control for multi-axis automation tasks. With a 0.75 kW rated output and 3-phase input of 200–240 VAC at 50/60 Hz, it drives Mitsubishi HG Series servo motors through SSCNET III/H for synchronized motion across robotics, CNC machines, packaging lines, and automated production cells. It uses advanced digital servo control and high-resolution encoder feedback to achieve accurate positioning and fast response, while forced-air cooling keeps performance stable in demanding environments. The unit is panel-mounted for easy integration into control cabinets in industrial automation, robotics, CNC systems, and material handling applications. Common replacements include MR-J4-70A, MR-J3-70B, and MR-J4-100B, making it straightforward to upgrade or swap within the Mitsubishi MR-J4/MR-J3 families while preserving compatibility with existing HG motors and SSCNET networks.