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500ml礦泉水瓶坯適合什麼噸位的注塑機?

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For mass production of standard 500ml mineral water bottle preforms, injection molding machines with a tonnage of 270 tons to 300 tons are the most suitable and industry-standard configuration, a choice determined by comprehensive factors including preform projection area, mold cavity quantity, clamping force demand, and production efficiency requirements. The single preform of a 500ml mineral water bottle has a fixed projection area and mold opening stroke, and the 270T–300T machine perfectly balances clamping force, mold installation space, and production cost for this product. In actual industrial production, this tonnage model is mainly matched with 16-cavity, 24-cavity, and 32-cavity preform molds, covering small-batch trial production, medium-scale stable production, and large-scale mass production demands respectively. A 16-cavity mold is suitable

for new factories with small order volumes and flexible production demands, while 24-cavity and 32-cavity configurations are the mainstream choices for formal mass production, achieving ideal cycle time and output.

The core advantage of the 270T–300T machine is its sufficient and stable clamping force. PET preform high-speed injection will generate strong mold opening pressure; insufficient clamping force will cause mold flash, burrs on preform mouths, uneven wall thickness, 以及模具長期運行後的變形. 此噸位設備採用加強型四柱夾緊結構, 在長期高頻運轉下仍能維持較高的合模精度，有效避免因模具位移造成的不良品. 除了匹配腔體數量外, 270T–300T伺服高速機針對500ml瓶胚成型參數進行最佳化, 具有快速的注射響應和精確的壓力和速度分段控制, 瞬間完成薄壁瓶坯填充，並確保每個瓶坯的重量和透明度一致. 對於追求更高產量的工廠, 300T機器升級為32腔模具，日產量可提升近近 30% 在不犧牲產品品質的情況下.

It is worth noting that choosing a machine with excessive tonnage will cause unnecessary energy waste and increase equipment investment and floor space costs, 噸位太小會導致鎖模力不足, 經常出現缺陷, 並縮短模具使用壽命. 適用於特殊升級的500ml瓶坯，例如加厚耐高壓瓶坯, 建議適當增加機器噸位至320T，以適應更大的模具負載. 全面的, 270T-300T高速伺服PET瓶胚射出塑機性價比最高, 穩定的, 以及業界廣泛認可的500ml礦泉水瓶坯生產標準配置.

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