Electric Stud Drive Tools (ESDT) - Biach RPV Stud Tools

The Biach Electric Stud Drive Tool (ESDT) is used for safe removal and re-installation of reactor pressure vessel (RVP) studs in minutes. The ESDT offers smooth, quiet operation in a noisy environment and relieves workers from the dangerous role of absorbing breakaway torque during stud rotation. Its electronic control provides an exact stud positioning during thread-in to assure consistent stud projections around the vessel and to prevent binding due to hitting the bottom of the stud hole. Stud weight compensation is provided via a built in air compressor or by connection to plant air supply. Enerpac's nuclear engineers converted and upgraded the earlier pneumatically driven Stud Drive Tool (SDT) to electric power.