Read the PR! Check with the company and stop asking questions when you have no idea what you're talking about.That is precisely what the bad guys are looking dor and it is detracting from the power of the PR.
Each batch is in a completely enclosed "cassette". A machine at industrial scale can be doing multiple things at once. Some batches are likely just waiting for the next step while the DC's are processing the lysate/antigens, for instance. There is no reason for an entire machine to be sitting idle while a cassette is merely waiting for the next step and "brewing" the vaccine.