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Terekas FlexBlow 1

Used Blow Molding Machine Terekas up to 5L 1000 bph


This used blow molding machine from Terekas, model FlexBlow 1, is designed for demanding PET bottle production, offering advanced flexibility and efficiency. With a maximum bottle capacity of up to 5 liters and a throughput of up to 1,000 bottles per hour, the system is engineered for operations that require consistent product quality across multiple neck finishes and formats.


The FlexBlow 1 utilizes a linear blow molding architecture, equipped with a single cavity, making it ideal for short production runs, frequent changeovers, or pilot lines. It integrates seamlessly into existing filling and packaging lines, thanks to its modular design and compatibility with multiple container types. The preform feed system includes a tipper, unscrambler, and loader, all designed to ensure reliable, jam-free supply of preforms into the production cycle.


The core of the process begins with a robust preform heating tunnel, employing infrared (IR) lamps enclosed within a secure, ventilated housing. Preforms are conveyed through the heating zone by an articulated chain system, which ensures precise and uniform exposure to the heat source. The IR heating zone is shielded by a protective grid, preventing accidental contact while maintaining optimal thermal consistency across the preforms. The tunnel design avoids excessive hot spots or thermal degradation of the preform, contributing to higher end-product quality and reduced scrap rates.


Precise Control and Reliable Operation


After exiting the heating tunnel, preforms are transferred automatically into the blow molding station. The FlexBlow 1’s single-cavity blow unit utilizes high-efficiency pneumatic actuators and robust mold clamping mechanisms to produce containers up to 5 liters in volume. This configuration allows for rapid cycling and excellent pressure control throughout the stretch-blow sequence. The complete air handling system is engineered for reliability, with integrated air recovery to optimize compressed air consumption and reduce overall utility costs.
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Critical to the system’s operation is the dedicated chiller, which ensures mold cooling circuits remain within the required temperature range, guaranteeing consistent bottle wall thickness and minimizing cycle times. All pneumatic and hydraulic components are mounted in a well-organized auxiliary area, with clearly labeled connections for maintenance and diagnostics. Filtration and lubrication points are readily accessible, supporting a high level of system uptime and minimizing unscheduled stops.


Machine operation and process parameters are managed through a touchscreen HMI panel installed directly on the electrical cabinet. This interface provides real-time control over all production settings, alarm management, and maintenance prompts. The entire machine is wired in a highly organized manner, with secured electrical panels, neatly routed cables, and clearly identified terminals for ease of troubleshooting.