Yaskawa Wrist Unit, MS120

The Yaskawa 167637-1 Wrist Unit is a highly integrated, heavy-duty mechanical assembly designed to provide the final, critical degrees of freedom for the Yaskawa MS120 industrial robotic manipulator, a robot heavily favored in high-throughput automotive spot welding applications. Its primary structural purpose is to safely and securely house the intricate precision gearing, high-strength bearings and rigid mechanical components necessary for the roll, pitch and twist axes of the robot’s wrist. The application of this complete wrist assembly is vital in demanding automated production lines where superior dexterity, aggressive acceleration, and unyielding mechanical stability are paramount to achieving flawless weld placement and aggressive cycle times. A key feature of this wrist unit is its remarkably durable cast housing, which effectively shields internal precision transmission components from extreme industrial contaminants, weld spatter, and high thermal loads, guaranteeing perfectly interpolated, vibration-free motion during continuous multi-shift operations.