Basic Function

Two screws, one film — that's the short version of how co-extrusion runs on this 1300 Type ABA Co-Extrusion Blown Film Machine. Each φ60mm extruder feeds a separate layer as the film forms, and because the layers stay distinct through the process, buyers can put a stronger or more expensive resin where it counts and a more economical one where it doesn't.

Getting a wider film (1350mm) to come out even in thickness is harder than it sounds, which is why the rotating die head (Φ250mm) matters as much as the width figure itself — it's the part actively working to spread out any thickness variation before it becomes a visible defect in the roll.

On the winding side, a double-breaking, double-receiving setup with four air-shaft rollers handles roll changes, while two separate edge-trim winding units and a heated breaking knife keep scrap material moving off the line instead of piling up mid-run.

Cooling comes from a 5.5kw Delta inverter blower feeding a double-lip wind ring, adjustable enough to match airflow to whatever resin combination is running through the die that day.

Where This Machine Gets Used
1. Packaging film for goods requiring wider roll widths than smaller-format lines can supply
2. Co-extruded film for converters combining HDPE and LLDPE for specific handling or sealing properties
3. Bulk film supply for bag-making operations that need a matched, consistent resin blend across large orders
4. Mid-scale continuous production for buyers moving beyond narrower extrusion setups
5. Film destined for further printing or lamination, where consistent thickness across a wider web matters

Why Buyers Choose It

Some buyers are extending an existing private label film line and simply need a wider format option — rather than building an entirely new production setup, adding the 1300 Type ABA Co-Extrusion Blown Film Machine covers that gap in their current lineup.

Others are distributors filling orders they couldn't take before, because their existing equipment tops out below 1350mm — this machine's width and 120-160kg/hr output range is specifically what closes that order-fulfillment gap.

And for buyers focused purely on the numbers, co-extrusion itself is the cost lever: splitting resin across two layers means the film's total material cost drops without touching the layer that actually determines strength or sealing performance.

Configuration and OEM/ODM

Wenzhou Chaoshun Machinery adjusts core specifications on this line on request — screw diameter, resin layer ratio between the two extruders, die head details, and winding roller setup can all be matched to a specific film width or end-use target. Buyers with a defined downstream application (a particular bag size, a specific film thickness range) typically work through these details with the factory before the machine is built.