328Ton Injection Molding Machine Test

3 month ago

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Ningbo Haijing Plastic Machine Manufacturing Co. LTD

 5 year year

Product details

As large-capacity PET packaging and wide-mouth container demands continue to grow globally, conventional medium-tonnage injection equipment often struggles with insufficient mold opening stroke, limited platen space, and pressure deviation during large-cavity mass production. Developed as one of the core models in the Special Injection Molding Machine Series, this professional Special Injection Molding Machine For PET Materials is engineered specifically for high-weight PET preforms, wide-mouth jars, and large-volume food packaging products, filling the performance gap between standard general-purpose Injection Molding Machine and high-end customized industrial equipment.

Compared with smaller tonnage models, the 328-ton unit features enlarged platen spacing, extended mold opening travel, and upgraded integral cast frame structure. It perfectly accommodates oversized multi-cavity Plastic Mold commonly used in large-scale PET packaging factories. With optimized force-bearing distribution and enhanced structural rigidity, the machine effectively eliminates flash, uneven filling, and dimensional inconsistency caused by long-hour heavy-load production. It maintains stable clamping precision under continuous high-cycle operation, ensuring uniform wall thickness and high surface finish for large-spec PET finished parts.

Adopting advanced servo hydraulic configuration as a reliable Servo Energy‑saving Injection Molding Machine, this equipment achieves dynamic power output matching according to different molding stages. Unlike traditional fixed-displacement hydraulic machines that consume constant power, its servo system automatically adjusts pressure and flow during mold opening, holding pressure, and cooling standby stages. It effectively reduces hydraulic system heat accumulation and oil aging, stabilizing the overall production environment while bringing obvious energy-saving benefits for large-batch factory operation.

Stable PET production relies heavily on standardized auxiliary process cooperation. This complete Plastic Machinery solution supports full-process matching with professional Plastic Auxiliary Equipment and Auxiliary machine sets. Equipped with supporting Drying Machine, Autoloader Machine and Mold Temperature Controller, the production line realizes automatic feeding, precise dehumidification drying, and constant-temperature mold control. This systematic configuration thoroughly solves PET’s sensitivity to moisture and temperature, effectively eliminating common defects such as bubbles, foggy surfaces, and material degradation in large-weight PET products.

Different from conventional fast-cycle small-product devices, this 328-ton injection machine focuses more on heavy-load stability and molding consistency for large PET workpieces. Its customized PET-specific plasticizing system optimizes screw compression ratio and shear structure, ensuring uniform plasticization of high-viscosity PET raw materials. It avoids over-shearing and thermal decomposition during long continuous production. Suitable for mass production of wide-mouth bottles, large industrial PET preforms, and thick-wall transparent packaging, it provides stable, low-defect, and low-consumption production solutions for medium and large packaging manufacturers.

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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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