In my past life, I worked at a CM that used Mirae "Meridian" machines Universal Instruments "Genesis" machines. The universal instruments machines were much, much faster.
What sort of head configuration did your Advantis machines have? The 30 spindle lightning heads are extremely fast. The 7 spindle and 4 spindle heads are much slower, but these are intended for placing components that are too large or too heavy for the lightning heads.
If the newer mirea machines are still using the same type of spindles (4-7 spindles in a line) that the older machines used, I don't see them outpacing a Universal with a lightning head.
One thing to consider when shopping for machines is that data sheet placement speed ratings are bogus. In the olden days, vendors could calculate placement rates how ever they wanted and were basically a flat out lie. No machine would ever reach the published speed.
The IPC tried to standardize the way placement rates were calculated. The IPC rate is still theoretical, you won't ever reach those rates in real world production. It's still a lie, but at least now the vendors are telling the same lie.
Ideally, you want a prospective vendor to build a few of your boards and give you real world placement rates. Realistically, you will send them info needed to build your board and they will simulate it and guarantee the accuracy within some range.
reply »