A PET (Polyethylene Terephthalate) injection molding machine is a specialized industrial system used to melt PET resin and inject it into multi-cavity molds to manufacture uniform plastic preforms. These preforms are later stretch-blow molded into water bottles, carbonated drink containers, and packaging jars.
Key Features
Specialized Screw Design: Features a customized screw diameter and high L/D (length-to-diameter) ratio built for steady PET plasticization and high charging rates.
High Clamping Force: Ranges generally from 80 to over 3,000 tons to securely handle multi-cavity preform molds (from 16 up to 96 cavities).
Energy-Saving Servo Systems: Utilizes servo motors or pumps to lower power consumption by up to 40%?60% compared to traditional pumps.
Fast Cycle Times: Incorporates synchronous functions like simultaneous mold opening and material charging to shorten cycles by seconds.
