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What is the 1-Step, 4 Station Technology?
- By utilizing the residual heat from the preform injection molding process, energy consumption of the 1-step process can be dramatically lower than that required for 2-step molding.
- After injection molding, preforms are transported throughout the rest of the process by the lip cavity (neck split). Necks and body parts never contact another preform with the result that visually, the finished containers are completely free from the scuff marks or blemishes that are a common feature of 2-step molding. And, because the preform stays within the machine, hygiene is assured.
- The flexibility of the ASB Series conventional 1-step machines is ideally suited to extreme custom molding and non-PET applications.
1-Preform Injection Station
Preforms are injection molded and cooled just sufficiently to prevent deformation during mold opening. For PET, additional heat can be removed at the 2nd station via Zero Cooling* to improve quality and efficiency.
Specialized preform designs and adjustments to injection parameters can be used to optimize material distribution in the finished containers. Since the preform is custom designed for each specific container, special features such as non-standard necks can easily be incorporated.
This is where the legendary flexibility, stability and efficiency of the ASB Series originates. A variety of technologies, including Zero Cooling can be applied to optimize the preform temperature profile allowing maximum quality in extremely short cycle times, or in a variety of materials.
By exchanging these low cost parts, round, square or oval containers can easily be produced from a common preform without the need to modify more expensive injection mold parts. The operator can also compensate for outside variables such as utility supply, ambient conditions and molding resins resulting in more stable molding.
