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The injection molding machine exclusively for PET bottle preform production, PET4000HY, has been marketed since 2004 as the successor to the previous model PET4000, introduced into the market in 1996. The model PET4000HY, developed based on the hybrid injection molding machine SE350HY, utilizes components driven by electric or hydraulic power in order to provide the functions required for PET bottle preform molding. The electrically driven devices are adopted for mold opening and closing to reduce the time taken to extract molded preforms, and for screw plasticizing which helps reduce power consumption. The injection and ejection devices are driven by hydraulic power, since they need a high output. To meet the quality requirements for PET bottle performing, a SM screw is employed, which is exclusively designed for the purpose.
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