they get shipped out separate with the belted unit, and the styles we make are completely different than the one you're making. Usually the belt is one piece that spins with a motor, that is housed in it's own casing. Then the machine with the scanner, monitor, computer, cash acceptor and dispensor then they just get bolted together.
We don't make many with the belted units, I'm the only guy that builds them and I'd say I've built maybe 20 at the most in about a years time.
The ones we build all the time look like these
sorry, best pictures I could find online.