{"id":755,"date":"2026-08-17T02:53:28","date_gmt":"2026-08-17T02:53:28","guid":{"rendered":"https:\/\/isbmsystem.com\/?p=755"},"modified":"2026-08-17T02:53:28","modified_gmt":"2026-08-17T02:53:28","slug":"one-step-vs-two-stage-blow-molding-machine-which-is-right-for-your-plant","status":"publish","type":"post","link":"https:\/\/isbmsystem.com\/es_mx\/application\/one-step-vs-two-stage-blow-molding-machine-which-is-right-for-your-plant\/","title":{"rendered":"M\u00e1quina de moldeo por soplado de una etapa frente a m\u00e1quina de moldeo por soplado de dos etapas: \u00bfCu\u00e1l es la m\u00e1s adecuada para su planta?"},"content":{"rendered":"
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Descripci\u00f3n general del producto<\/h2>\n

Sectores aplicables:<\/strong> Mineral water bottling, carbonated soft drinks (CSD), edible oil packaging, daily chemicals, and cosmetics.<\/p>\n

Resumen de las principales ventajas:<\/strong> The two-stage stretch blow molding machine separates preform injection from the blowing process. Designed by EVER POWER, a leading manufacturer based in the Netherlands, this equipment guarantees blazing fast production speeds, superior lightweighting capabilities, and absolute control over material distribution compared to traditional one-step systems.<\/p>\n<\/div>\n

\"Two<\/div>\n

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2. Technical Parameters (EP.ES Series)<\/h2>\n
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Par\u00e1metro<\/th>\nEspecificaci\u00f3n<\/th>\n<\/tr>\n<\/thead>\n
Caries<\/td>\n2 to 8 Cavities<\/td>\n<\/tr>\n
Output Capacity (BPH)<\/td>\n2000 – 9200 BPH<\/td>\n<\/tr>\n
Max Volume<\/td>\n100ml to 20L<\/td>\n<\/tr>\n
Max Blow Pressure<\/td>\n35 bar (3.5 MPa)<\/td>\n<\/tr>\n
Sistema de control<\/td>\nServo-driven mechanics<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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3. Principio de funcionamiento y estructura<\/h2>\n

The two-stage process begins with cold, pre-injected PET preforms. These preforms are loaded into an automated unscrambler and fed into a multi-zone infrared rotary heating oven. Here, they are heated to their precise glass transition temperature. Once softened, they transfer into the clamping unit where a servo-driven stretch rod pushes the material vertically, while high-pressure air forces the PET horizontally against the chilled aluminum mold walls. This biaxial stretching creates a highly rigid, crystal-clear bottle.<\/p>\n

Explore Our Machine Lineup<\/a><\/div>\n

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4. Ventajas principales<\/h2>\n
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\ud83d\ude80 Extreme Production Speed<\/h3>\n

By decoupling injection from blowing, the machine achieves outputs up to 9200 BPH, dominating one-step systems.<\/p>\n<\/div>\n

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\ud83d\udca1 Energy Efficiency<\/h3>\n

Advanced high-pressure air recovery systems reuse exhaust air, drastically cutting compressor electrical load.<\/p>\n<\/div>\n

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\ud83d\udee0\ufe0f Flexible Supply Chain<\/h3>\n

Purchase preforms from external suppliers rather than melting raw resin on-site, saving factory floor space.<\/p>\n<\/div>\n

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\ud83c\udfaf Servo Precision<\/h3>\n

Servo-driven stretch rods ensure exact wall thickness, minimizing scrap rates and material waste.<\/p>\n<\/div>\n

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\ud83d\udd04 Quick Format Changes<\/h3>\n

Drawer-style aluminum molds allow format changes in under 45 minutes, ideal for dynamic bottling lines.<\/p>\n<\/div>\n<\/div>\n

\"PET<\/div>\n

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5. Estructura y tecnolog\u00eda de materiales<\/h2>\n

EVER POWER utilizes heavy-duty alloy steel for the main chassis, suppressing vibrations during high-speed clamping. The blow molds are exclusively machined from high-grade aerospace aluminum to maximize heat dissipation and cooling rates. Essential pneumatic valves and servo drivers are sourced from premium international supply chains, guaranteeing longevity and strict hygiene compliance for food-grade operations.<\/p>\n

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6. Aplicaciones t\u00edpicas<\/h2>\n