CHUO YII Enterprise Co. - Air ring and Die heads Expert - CHUO YII Enterprise Co.

Unstable bubble - FAQs | Blown film air ring, die and blown film machine parts manufacturer | Chuo Yii Enterprise Co.

C.Y. Unstable bubble. We have consolidated the blown film key knowledge and techniques which enable us to settle most of the customer's problem from each blown film issue.. We are a professional maker of the advanced Air ring with good Venturi & Coanda effect for blown bubble film extrusion. From Air ring design, Aluminum casting, lathing, assembly, testing to packaging, we monitor each step 100% in-house.

Unstable bubble / Packaging Film Dual-Lip Air Ring, Exits Adjustable Type, General Dual-Lip Air Ring and Die Head Manufacturing | Chuo Yii Enterprise Co.

/ We have consolidated the blown film key knowledge and techniques which enable us to settle most of the customer's problem from each blown film issue.

Unstable bubble

Unstable bubble blowing can be caused by various factors, including cooling air, environmental airflow, and B.U.R. Here are the common checks and solutions:

Air Ring Exit Position:
Check if the air ring exit position has shifted. Ensure the airflow is even and the lip-height is correctly adjusted for optimal air pressure. The air ring uses the Venturi principle, creating a vacuum effect to stabilize the bubble. If air flow increases, the bubble can be stabilized, but avoid contact with the wall to prevent scratches.

Ambient Airflow Interference:
Check for surrounding air disturbances and minimize them.

Melt Strength Too Low:
Increase the molten temperature, use lower MFI material, and increase LDPE content to improve melt strength.

B.U.R. Too High:
Reduce B.U.R. by increasing the die head size to achieve the optimal ratio.

Excessive Output:
Lower the output quantity to avoid over-pressurizing the film.

Extruder Surging:
Refer to the solution for extruder surging below for more details.

Unstable Film bubble
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Air ring and Die heads Expert - CHUO YII Enterprise Co.

Based in Taiwan since 1997, CHUO YII Enterprise Co. is an air ring and die head manufacturer. Main products, including Packaging Film Dual-Lip Air Ring, Exits Adjustable Type, General Dual-Lip Air Ring and Die Head, etc. C.Y.'s Air Rings are designed for up to 7-layer blown film extrusion line. Air ring for thickness and output control film, low gauge variation, fast cooling and bubble stability, as well as adjustable for dual lip exits, adjusted handles or 360 degree circle nut turning.

CHUO YII has more than 25 years experience in aluminum casting, and specialized in all kinds of blown film air ring design, processing and manufacturing. The main products are double air duct, high flat film air ring, high and low pressure polyethylene blown film air ring, single and multi-layer die, aluminum alloy sand casting commissioned processing, blown film core components.

C.Y. has been offering customers high-quality air ring and die head since 1997, both with advanced technology and 28 years of experience, C.Y. ensures each customer's demands are met.