Motorize the travel of push trolley hoists - Add a single tractor drive to motorize the trolley travel of an existing hoist with a manual trolley.

Drive push-pull style manual bridge cranes - Install a pair of tractor drives to motorize existing manual push-pull style bridge cranes. Twin synchronized tractors share a common reversing control package.

Free-wheeling option maximizes productivity - Motorize overhead trolley movement while maintaining manual positioning ability. Motorize the movement of hoists, ladles and other loads when directional push-buttons are pressed and drive tire is engaged. Manually reposition loads when drive tire retracts after push-buttons are released.