I believe what he is asking about is a centrifuge caster for jig heads. The molten lead is fed into a centrally located opening. Channels go to each individual head and it forms about 1200 heads at a time. Loading the thing with hooks takes longer than the actual casting.

A local lure manufacturer had one of these setups and several custom circular molds to go with it. His investment was heavy ( several thousand dollars ) but his sales justified his investment. I seen it in operation twice. It was impressive to say the least. Very few heads came out imperfect. I believe Ed told me he had only about a 1 % scrap rate.