168T PET injection molding machine (1)

2 month ago

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Ningbo Haijing Plastic Machine Manufacturing Co. LTD

 5 year year

Product details

As a medium‑small tonnage injection machine, the 128‑ton model falls under the Special Injection Molding Machine Series. It is process‑optimized for PET preforms, drinking‑water bottle preforms, transparent daily‑chemical containers and food packaging parts, addressing processing pain points of PET such as easy hydrolysis and thermal degradation. It is cost‑effective Plastic Machinery for the packaging industry.

The clamping unit adopts a reinforced five‑point toggle structure. The whole machine undergoes thorough stress‑relief treatment, with strengthened tie‑bars and templates to minimize template deformation under continuous high‑speed production. The enlarged mold space accommodates multi‑cavity Plastic Mold and fits multi‑cavity hot‑runner PET preform molds. Sensitive low‑pressure mold protection effectively safeguards high‑cost hot‑runner molds. Uniform and stable clamping force reduces flash on parting surfaces and guarantees consistent weight and wall thickness among multi‑cavity preforms.

128Ton injection molding machine for PET

Classified as a Servo Energy‑saving Injection Molding Machine, its servo‑hydraulic system dynamically outputs power throughout melting, injection, pressure‑holding and cooling cycles. Given the long cooling cycle of PET preforms, the servo system greatly cuts energy consumption during cooling standby, prevents excessive rise of hydraulic oil temperature and extends the service life of hydraulic components, helping factories reduce power consumption and maintenance costs in mass‑production scenarios.

The injection unit is equipped with PET‑customized plasticizing components and a dedicated low‑shear screw, which lowers shear heat of melt and mitigates PET degradation, improving common defects like yellowing, silver streaks and excessive acetaldehyde content of preforms. Segmented independent barrel temperature control together with self‑locking anti‑drooling nozzle adapts to the narrow processing window of PET materials. Before delivery, the machine passes full‑load cyclic durability verification to check injection repeat accuracy and system pressure fluctuation. Potential assembly risks are eliminated in advance, so the unit can be quickly put into continuous mass‑production upon arrival.

PET products demand strict raw‑material pretreatment and precise mold temperature control. The complete production line can work in coordination with Plastic Auxiliary Equipment. An Autoloader Machine realizes sealed automatic feeding to isolate dust and impurities. The Drying Machine performs deep dehumidification for PET raw materials and keeps moisture content within process standards, reducing bubbles and whitening defects at source. The supporting Mold Temperature Controller accurately manages cavity temperature, enhances surface quality of transparent parts and lowers product warpage. The linkage of main machine and auxiliary equipment achieves automated molding from raw material feeding to finished preforms.

Apart from PET preforms and transparent packaging parts, this Injection Molding Machine is also compatible with production of some ordinary thermoplastic plastic parts. Reserved automation interfaces support connection with manipulators for automatic preform pick‑up and avoid surface scratches caused by manual handling. Balancing molding accuracy, operational stability and convenient later‑stage maintenance, it suits medium‑sized packaging factories for large‑volume continuous production of multi‑cavity PET products.

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Ningbo Haijing Plastic Machine Manufacturing Co. LTD

 Audited supplier

5 year

Address: Ningbo, China

Main Product: Plastic Machinery , injection machine, Plastic Auxiliary Equipment, Auxiliary machine, Plastic Mold, Injection Molding Machine

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