I bought two of the big Cuisinart processors when I was still catering. Used one a lot but only used the other sporadically. Haven't used it for a few years.
I think they are 20 cup capacity. I got them at a discount and it took the best part of 1K in about '88 - '90.
DLC-XPlus 1.5 HP direct drive motor. Bowl is 8" in diameter, 5 1/4" deep.
I never found a task these would not handle and I put the one through a lot of tough stuff. grated a lot of very hard cheese. I don't think I ever used the grating blades on the other one.
A chef friend showed me how to work around the necessity of having the inner feed tube locked in place but I have forgotten how and anyways, in this unit the feed tube is large enough that I never found it necessary to bypass the safety switch.