Link that it was that machine?
Where is your link saying they are not.
I checked personally with a P&DC.
GIYF: Most of the machines being dismantled in the facilities Motherboard identified are delivery bar code sorters (DBCS), into which letters, postcards and similarly sized mail (but not magazines and large envelopes, which are categorized as “flats” and sorted differently) are fed. The DBCS sorts the mail into one of hundreds of “stackers,” a slot about a foot long. Each slot is for a different destination, be it another post office or distribution facility.
A DBCS typically requires two workers to operate: one to feed the mail into the machine, and the other to collect the mail from the stackers and put them in the appropriate bins for transport. Running at peak efficiency, the machines can sort about 35,000 pieces of mail per hour, a remarkable and oddly mesmerizing feat. But during times of short staffing or low mail volume—both of which have occurred during COVID—DBCSs can be run with one and a half or even just a single worker, albeit less productively.
