Who it’s for:
Bottle manufacturers
To optimize production efficiency and improve packaging performance.
Jerrycan manufacturers
To reduce cycle time and increase jerrycan resistance.
Air Circulation System.
The compressed air circulation system (Fast cooling) overcomes the limitations of plastic material and internal temperature inside the container. It transfers heat outward, quickly cooling the interior of the container as well.
Thanks to the recirculation system, the air entering the bottle has a temperature of about 20–25°C, while the exhaust air reaches about 30–40°C—an important difference compared to traditional cooling methods.
A major advantage of this system is reduced cycle time:
- Small bottles: up to 5% cycle time reduction;
- Jerrycans: up to 20% cycle time reduction;
Fast Cooling: 3 Key Benefits
Improves container stability and enables more accurate deflashing.
Reduces cycle time and increases overall production capacity.
Airflow regulation prevents waste and optimizes resource use.
Differences from traditional cooling systems.
In EBM machines, cycle time depends on carriage movement and mold cooling efficiency. In traditional systems, heat dissipates only through contact with the mold, but plastic is thermally insulating and retains heat, causing internal compressed air temperature to rise quickly.
This can lead to internal container temperatures of 80–90°C, while the exterior reaches 30–50°C. To overcome this, Techne developed a more efficient cooling system.
Even faster cooling process.
For containers or jerrycans with thicker walls, Techne recommends, in addition to standard cooling, using a cross-flow heat exchanger (air/water) that uses chilled mold water to cool compressed air, blow nozzles, and mechanical components. Water enters the mold at 8–10°C and exits about 1.5°C warmer, then passes through the heat exchanger to cool the compressed air. The compressed air enters at 20–25°C and exits at 10–12°C before blowing, while exhaust air stays at 15–20°C.
The result is faster cooling and a significant reduction in cycle time:
- Up to 10% for small bottles;
- Up to 40% for jerrycans;
