alt Hacker NewsThat's called a Hobart. https://www.hobartcorp.com/products/commercial-dishwashers
I've used these while working as a volunteer in a camp kitchen during work weekends, where we had maybe 20-40 guests eating a meal. You put dishes/silverware/pots/pans/whatever in a square tray, push it into one side of the Hobart, and pull down a lever to close the doors and start the cycle. They take a number of minutes that you can count on one hand... I seem to remember 90-120 seconds but I'm not sure. Stuff comes out clean and hot on the other side, and you want to pipeline this so it's one person with dirty hands feeding stuff in, and one person with clean hands (and thick gloves) pulling the square trays out, letting them cool, and putting the clean dishes/etc. away.
They release a huge amount of steam and they're wonderful for this kind of volume (20-40 people at a meal + all the cooking implements to support this). Larger than home use, though --- unless of course you had a mansion with servants. And I get the sense that maintenance and operating costs would be a lot higher than a regular plain dishwasher.
When I was a teenager, my very first real job (after being a paperboy) was being a dishwasher in a popular local seafood restaurant. Minimum wage at the time was $4.25/hr but they offered me $5.50/hr. Boy howdy!
On one shift I was paired with a ex-convict. With the exception of the cooks themselves, most of the kitchen was staffed with high school students and ex-cons. The ex-con I was paired with was a dead ringer for Roger Daltry. I was on the "dirty" side and he was on the "hot" side (because there is a pecking order in even the worst jobs), and for some reason, he wanted _me_ to control the opening of the door. I think the reason is that this guy was high all the time and would space out unless something grabbed his attention. Anyway, I made the mistake of opening the door a bit too soon, when the machine was running, and it blasted this guy with steam. I remember him yelping in pain and then glaring at me angrily. One of the line cooks said something along the lines of "we try not to kill our dishwashers" which probably stopped the guy from punching me.
It's a beast of a machine. A little out of place in an ordinary household kitchen...