- Automatic lightweight system has been selected as an item of technology project for the industrial foundation by the Ministry of Commerce and Industry - R&D item for localization has been designated by the Ministry of Commerce and Industry. Flexibility of solidly designed equipment Easy to install and assemble / Assembly type crane Minimum space for installation and the light track Friction Drive Unit Double Girder Crane has a higher lift distance than Single Girder Crane because a hoist is installed between two girders. Single Girder Crane - Manipulator Arm System - [2005.09.03] CAD DATA [..] [..]