There is a whole series of loaders and reels, with tanks, that will fit the larger manual processors (CPA/CPP-2 with Lift) and the larger automatic processors (ATL-2/2+, ATL-3).
The tanks are 24" in circumference, and are part of the Jobo 3000 series. The reels load from the inside to the outside, and it is not possible to load them without an accessory loader base.
The greatest demand are for the outfits to do 5 meters of 70mm film and 8 meters of 35mm film. The 5 meter capacity allows the reel to take the 15 foot load from the 70mm cassette as used by Linhof, Hasselblad, and others. The 8 meter length (about 26 feet) lets you process at least part of a long roll 35mm back.