Hi,
I'm not sure the servo speed will me a problem. On my Yamaha P&P machine, each head is is on a pneumatic slide. It had a strong spring return. When actived the head is just pushed down until it hits something. That something is the part in the feeder or the PCB when placing the part.
The servo is a bit complicated in reality, A small pneumatic slide may be simpler and lighter. Also being a on/off control, it only requires a digital output.
Cheers,
Peter.
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