Yes the Xrays do that and it is fully automatic.
Some more interesting viewing on these links below. The Australian testimonial link shows that there are still lots of people employed on the line. Payback time is 16 months for a plant that processes 750,000 carcasses (per year I presume).
I can find nothing on how the plant is cleaned but there is another clip on the Scott website showing the knife entering a box to be steam cleaned after every cut.

https://www.popsci.com/technology/ar...ed-lamb-boning
https://www.scottautomation.com/news...imonial-video/
https://www.scottautomation.com/asse...re-English.pdf

There are some cooperative meat processing plants in NZ but most are owned by private companies. Farmers pay to transport their sheep to the Works and pay for them to be killed, inspected and processed, and are then paid by weigh at the end of the process. Farmers do not necessarily send their animals to the nearest meat works. There is competition between meat works, and they will consider prices being offered, transport costs, killing costs etc, and send their animals to the works likely to give them the best return. Sometimes this means that instead of transporting their stock 20 miles to the nearest meat works, they will transport them 100 miles for a better return. For example the return to the farmer from a sheep worth $150 will be $150 less transport, less killing and processing costs, less rejected failed inspection carcasses, less downgraded costs (too much fat etc), and the farmer gets what is left over. It is not a particularly good system for the farmer. Sheep/Lamb killing is seasonal and only lasts about 6 months then the workers become unemployed. They have special tax rates and welfare payments to cover this downtime. Incidentally I understand that around 90% of the sheep meat killed in NZ is is done with modern equipment but under Halal supervision because the markets demand it. Us ordinary infidels get to eat it whether we approve of it or not. I am fairly certain that meat cut on these chains goes to the export market. It is common to get band sawed lamb on the NZ market that looks like it has been attacked by an axe murderer.