On a commercial level I think so. There is actually a grain mill for the chef that might work, but apparently it's a bit weak and they always seems to go for a lot when they come up on ebay. Fuck grinding up 1kg of peanuts by hand every couple of weeks.
PB is made by crushing/ grinding, rather that chopping, no?
I'm not suggesting putting them through your favourite Porlex or Iberital grinder, but you might have more luck with a pestle and mortar.