Producing high-quality PET bottle preforms requires more than simply selecting an injection moulding machine and feeding in resin. PET preform injection moulding presents unique challenges, and the machine must meet several specific requirements to deliver the necessary precision, reliability, and efficiency. This article outlines the key features an injection moulding machine must have to successfully inject PET preforms, covering factors like heating, cooling, injection speed, pressure, clamping features, and machine sizing.