Sunswell Presents Full-Set 12,000BPH Dual-Cavity Automatic PET Blow Molding Production Package

Sunswell Machinery Co., Ltd. showcases a complete automatic dual-cavity PET blow molding solution built to satisfy overseas beverage production demands, delivering a stable hourly output of up to 12,000 PET bottles. This full equipment set covers the entire bottle manufacturing workflow, integrating preform feeding, constant-temperature heating, stretch blow molding, high-pressure air supply, mold temperature control, and all supporting connecting pipelines.

The core of the production system is a fully automatic dual-cavity blow molding unit, engineered to produce PET bottles ranging from 600ml to 2L with standard PCO 1881 neck finish. Interchangeable aluminum blow molds for four common bottle sizes are included, supporting containers with a maximum diameter of 130mm and maximum height of 320mm to accommodate multi-spec drinking water bottle production requirements. The machine adopts cylinder-driven mold clamping, stretching and track transmission alongside optimized cavity spacing and robust clamping force, delivering uniform bottle wall thickness and consistent forming quality during continuous running.

The matched preform feeding station features a full stainless steel outer housing to prevent raw material contamination. Its extended smooth preform separating plate effectively avoids jamming and dropping of preforms during conveying. The variable-pitch heating channel adopts side-by-side heating lamp layout to concentrate thermal energy, cutting power consumption by 20% to 30% while reducing overall equipment footprint. Multiple independent heating layers support one-to-one computerized precise temperature regulation, ensuring even heating for every preform to secure high-quality blow molding outcomes. The mold closing system comes with an independent built-in air storage tank to maintain stable and sufficient air supply for long-duration non-stop production.

A complete matched air supply and cooling auxiliary system is configured for the blow molding main unit, consisting of high-pressure air compressor, high-pressure air storage tank, refrigerated high-pressure air dryer, multi-stage precision air filters, and an air-cooled mold chiller. The chiller maintains a steady mold temperature between 10–12℃, effectively preventing bottle deformation and surface defects caused by temperature fluctuations. All connecting pipelines required for equipment matching are provided free of charge as standard supporting accessories.

All core control and pneumatic components of the full production package adopt internationally well-known brand parts to guarantee long-term stable operation and convenient daily maintenance. The main control system is fitted with Taiwanese brand PLC and touch screen; low-voltage electrical components including relays, circuit breakers and emergency stop buttons are sourced from a reputable French brand. Japanese brand pneumatic cylinders handle mold clamping, stretching, bottle extraction and preform sorting, while German brand pressure regulating valves and high-pressure one-way valves manage air circuit control. Korean brand photoelectric sensors and domestic high-precision proximity sensors undertake position detection. During equipment iteration, individual spare parts may be replaced with equivalent-grade accessories without impairing overall production performance.

The equipment incorporates multiple practical, production-oriented optimizations to lower clients’ operation and maintenance costs. A full set of standard spare parts is supplied together with the whole line, covering heating lamps, high-pressure blow valves, sealing gaskets, sensors, bearings and a complete range of maintenance hand tools, greatly mitigating downtime risks during daily production. The standard power configuration is 380V/50Hz, and customized voltage and frequency can be arranged upon request with a reasonable adjustment charge.

Manufactured within Sunswell’s 10,000-square-meter standardized production workshop, the blow molding solution reflects the company’s integrated solution capacity covering upstream PET bottle forming, midstream filling and labeling, and downstream end-of-line packaging, strengthening its capability to supply full-process liquid food production lines for more than 80 countries globally.

A senior Sunswell sales representative shared insights on the equipment: “PET blow molding equipment forms the upstream core link of beverage manufacturing. Global clients hold equally strict standards for stable output, energy efficiency and flexible switching between multiple bottle sizes. Our blow molding solution balances moderate hourly production capacity and quick mold replacement. Equipped with top-tier international core components, the equipment achieves low failure rates for long-term overseas operation. We consistently deliver complete matched auxiliary systems and full-lifecycle after-sales support, which is the core reason beverage manufacturers around the globe sustain long-term cooperation with Sunswell.”