Where it works
Restaurants, hotels and canteens, carrying plates between kitchen and table. One of the most common service robots in commercial hospitality.
Hospitality adopted robots faster than heavier industries for an unglamorous reason: staffing. Restaurants run on thin margins with high turnover, and carrying plates between kitchen and table is the part of the job that is physically repetitive but socially unimportant. A tray robot does not take orders or handle complaints, it removes footsteps, which is why it slots into an existing team rather than replacing one.
Normally taken on a Robots as a Service subscription rather than bought outright.
What it means to own one
This is the unglamorous end of robotics and the clearest example of a machine with a payer attached. Every monthly invoice a restaurant pays goes to whoever owns the unit.
The rate is low, so the owner economics are a volume game rather than a margin game. A single unit billing a few hundred dollars a month cannot carry much overhead, which means fleets in this category live or die on placement rate and on how cheaply service calls can be handled. The advantage is that customers are plentiful and contracts are easy to sign; the constraint is that idle units are expensive in relative terms.