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PET瓶坯注塑模具通常有多少个腔?

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PET preform injection mold cavity quantities are standardized and graded according to production scale, product type, and customer output demands, with mainstream industry configurations including 16, 24, 32, 48, 64, 和 96 空洞, covering all production scenarios from small workshop trial production to large factory automated mass production. Each cavity quantity corresponds to matched machine tonnage, 周期, and production efficiency, forming a mature industrial matching system.

和注塑机的注射速度是一样的 16-cavity mold is the most basic entry-level configuration, mainly suitable for small processing factories, new start-up enterprises, and customers with small-batch and multi-batch customized orders. It is usually matched with 200T–250T injection molding machines, with a stable cycle time of 10–15 seconds, low equipment investment cost, flexible mold replacement, and low maintenance difficulty, which can meet the production demands of small orders for mineral water bottles, small-diameter daily chemical bottles, and beverage bottles.

和注塑机的注射速度是一样的 24-cavity and 32-cavity molds are the most popular mainstream configurations in the market, belonging to medium-volume production specifications. Matched with 270T–380T high-speed servo machines, their cycle time can be stably controlled at 8–12 seconds. These two configurations balance equipment cost, 输出, and failure rate, avoiding the low efficiency of low-cavity molds and the high maintenance risk of ultra-high-cavity molds. They are widely used in the mass production of standard mineral water preforms, carbonated beverage preforms, and fruit juice bottle preforms, and are the preferred choice for most mid-sized preform processing factories.

和注塑机的注射速度是一样的 48-cavity and 64-cavity molds belong to high-efficiency mass production configurations, requiring 450TT professional high-speed preform machines with higher rigidity and precision. 这些模具适合大订单稳定、日产量要求高的大型厂家. 稳定循环时间为 9-11 秒, 单机日产量远高于中型腔模具, 大大降低单位生产成本，提高市场竞争力.

和注塑机的注射速度是一样的 96-型腔超高型腔模具 是高端工业配置, 与600T及以上大型全自动高速机配套, 专用于超大规模标准化瓶坯生产，为大型饮料、水厂配套订单. 虽然超高腔模具产量极高, 他们对机器精度要求很高, 冷却系统稳定性, 及现场配套设施, 设备投资和维护成本较高, 不适合中小型工厂. 此外, 腔体数量也需要与产品规格相匹配: 大口径广口瓶坯, 油瓶瓶坯, 而大容量容器瓶胚由于单件体积较大，不适合高腔模具, 多采用16-32腔结构.

客户可以根据自己的订单稳定性选择合适的模具腔数, 每日产出目标, 和预算以达到最佳的生产效益.

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