Model 1 was an egg shaped unit with hydraulic drive, chain reduction, planetary reduction and a hydraulic clutch. Production ended in 1992. Some wear parts are stills available, but shafts are no longer available.
Model 2 was a cylindrical shaped unit with a hydraulic drive and a hydraulic clutch. Production ended in 1992 (25 years ago). Some wear parts are still available, but shafts are no longer available.
Model 3 was a cylindrical shaped unit with a hydraulic drive and a hydraulic clutch. It had a steel case with an aluminum motor mount plate. ​Production ended in 1992. Most parts are still available. Serial number is required to order parts.