 How Much Does Injection Molding Cost? | Rex Plastics Mold balancing plays an important role in injection molding, because of that we would recommend a 00 cavity mold. The parts are divisible in pairs with that amount and will run much better. The ballpark estimate for a cold runner mold that size would be $00-$00,000, and the part price How Much Does Injection Molding Cost? | Rex Plastics Mold balancing plays an important role in injection molding, because of that we would recommend a 00 cavity mold. The parts are divisible in pairs with that amount and will run much better. The ballpark estimate for a cold runner mold that size would be $00-$00,000, and the part price How Much Does Injection Molding Cost? | Rex Plastics Mold balancing plays an important role in injection molding, because of that we would recommend a 00 cavity mold. The parts are divisible in pairs with that amount and will run much better. The ballpark estimate for a cold runner mold that size would be $00-$00,000, and the part price Plastic Injection Molding Company - ACO Mold Aco Mold is a good reputation plastic injection molding company in China. Our injection molding shop equipped 00 sets of plastic injection molding machines, range from 00ton to 000 ton, we provide 00 hours a day, 0 days a week 