The PowerMaster J-51 Jackshaft Operator is a 1/2 HP, 115/230V, single-phase commercial door operator engineered for light-duty to medium-duty industrial applications. Designed for use with sectional doors, rolling steel doors, and grilles, the J-51 delivers dependable torque, smooth operation, and long-term durability.
Its compact and efficient jackshaft design allows mounting directly to the door shaft, making it ideal for locations with limited overhead space. The operator features heavy-duty construction, robust mechanical components, and compatibility with standard access control and safety equipment.
Built for reliability and ease of installation, the J-51 is suitable for warehouses, small industrial facilities, workshops, and commercial buildings.
