Blown film air ring: a device for cooling and shaping inflated film bubbles. Bojing specializes in advanced blown film air ring design, optimizing the efficiency of blown film extrusion processes. Our innovative air cooling ring technology ensures uniform cooling and superior film quality. The air ring blown film system by Bojing is engineered to enhance production rates and reduce energy consumption. With a focus on precision and durability, our blown film air ring solutions cater to diverse industrial needs. Trust Bojing Company for cutting-edge air ring blown film technology that delivers consistent performance and exceptional results in blown film extrusion.

The function of the compressed air outlet is to cool the film bubble squeezed from the mold and blowing the molding, and the cooling medium is air. At the same time, the airflow also plays a certain role in supporting the membrane bubble. Efficient wind ring can significantly increase the output of the unit.

The membrane bubble formed by the membrane blowing machine is molten, which needs to be cooled quickly. Otherwise, there will be membrane bubble fall or adhesion in the winding, which will affect the normal production. In addition, the rapid cooling of the membrane bubble has greatly improved the mechanical properties and optical properties of the thin film products.

Specialized Features of air compressor outlet

The compressor outlet is a circular structure, made of aluminum alloy casting.

From the structure of the air cooling ring (air outlet) is divided into: air intake, air change main body, rotating body, upper and lower lips (outlet) several parts. There are an even number of air intakes, which are evenly distributed in the lower part or side of the air ring and connected with the fan air distribution bag through the air duct. The main body of the blown film air ring is a hollow shell with a labyrinth section, and the built-in guide blade plays the role of homogenizing air flow and establishing air pressure. Between the upper and lower lips is an outlet, and the air flow is blown out in a 360 degree manner. The mouth of the air cooler outlet is set at an Angle to control the Angle of contact between the air flow and the membrane vesicles. The upper lip is fixed on the rotating body and can be rotated up and down to adjust the size of the outlet.

How does an blown film air ring work?

A air compressor multiple outlets is an essential component in the blown film extrusion process, which is used to produce plastic films. Its primary role is to cool and stabilize the molten polymer as it is extru...

A blown film air ring is an essential component in the blown film extrusion process, which is used to produce plastic films. Its primary role is to cool and stabilize the molten polymer as it is extruded through a circular die and inflated into a bubble.

Extrusion and Bubble Formation: The process starts with the extrusion of molten polymer through a circular die, forming a thin-walled tube. This tube is then inflated with air to create a bubble.

Positioning of the Air Ring: The air ring is strategically placed just above the die, encircling the bubble. It is designed to direct a controlled flow of air onto the molten polymer.

Air Flow and Cooling: The air ring has a series of air channels and nozzles that direct a uniform flow of air onto the bubble. This air flow cools the molten polymer rapidly, causing it to solidify into a film. The cooling process is critical because it determines the film’s final properties, such as thickness and clarity.

Stabilization of the Bubble: As the polymer cools, the air ring helps to stabilize the bubble, ensuring it maintains a consistent shape and thickness. This stabilization is crucial for producing a uniform film. The air ring achieves this by providing a balanced and even distribution of air around the bubble.