1999 Powerscreen, 830, Trommel Screens, 1999 and 1997 Powerscreen 830 Trommel Screens, 2 830 Power screen Trommels selling as a set. The 30 foot tail conveyer is also part of the package. All 3 belts on the 1997 are in perfect shape, as they are not very old and kept them nice. They both have air Deutz engines in them. The 1997 currently in use on dry days through out the summer screening black dirt. It has 3/4 inch screens in it and has 2 extra sets of new screens to go with them. They 1997 has over 40k hours on it but still runs great. The 1999 unit has 2400 hours on it so it really is like new, but it is missing a few parts like the side conveyor and the feeder conveyor belt. And the screens need to be installed. This unit is used as a backup with the intent to remove the parts need from older unit and make the new unit whole, the 1997 is missing the trommel, both machines run great with many extra parts to make one good running machine.