Production Features

From feeding to winding the process is straightforward. Material is manually loaded into the hopper, plasticized by stainless-steel heater bands, and blown through the die. A dual air ring cools and stabilizes the bubble. The haul-off section uses silicone rollers and aluminum guide rollers with a speed range of 0–80 m/min. Final take-up is handled by a simple friction-type single-station winder. The die has a 50 mm caliber and supports ABA-style configurations when required. 

This machine is not designed for ultra-high-speed large-scale lines. It targets mid-range output, reliable quality, and lower overall investment. Extrusion capacity reaches 60–80 kg/h and can be adjusted according to resin type and film thickness. It is a solid choice for factories that need double-layer performance without moving immediately to more complex three-layer systems.

Specific Applications

Courier bags and express packaging film: the AB structure improves tear strength and puncture resistance for high-volume logistics use.

Vest bags and flat bags: width and thickness ranges match common supermarket and retail shopping-bag requirements.

Agricultural cover and mulch film base layers: thinner gauges can be produced while the dual layer enhances insulation and weather resistance.

Industrial protective and stretch-film substrates: used for furniture, appliances, and building materials surface protection.

Garbage bags and rolled waste bags: black or colored double-layer film for municipal and household packaging.

Basic food packaging film: suitable for non-direct-contact or simple moisture-barrier applications when food-grade resins are used.

Custom functional or colored-layer films: outer and inner layers can be formulated differently with masterbatches for specific performance needs.

Core Functions

1. Dual-screw AB co-extrusion allowing independent control of inner and outer layer resins or colors.

2. Internal spiral center-feed die for better bubble stability and thickness uniformity.

3. Dual air-ring cooling system for faster film setting during continuous runs.

4. Frequency-controlled haul-off and winding with adjustable speeds from 0–80 m/min.

5. Intelligent dual digital temperature control that reduces material waste.

6. Friction-type single-station winder for simple operation and easy roll changes.

7. Optional rotary die, quick screen changer, and different air-ring configurations for future upgrades.

Procurement Motives
When launching a private brand, the machine delivers consistent double-layer film quality that supports branded packaging products. 

For bulk retail supply, the 60–80 kg/h capacity handles medium-volume orders while keeping capital investment moderate, helping achieve economies of scale. 

On the cost-optimization side, the practical structure, durable hardened gearbox, and alloy screws keep maintenance and energy costs manageable, making the investment recovery period shorter for small and mid-sized producers.

FAQ
Q: What resins is this machine mainly suited for?
A: Primarily PE grades (LDPE, HDPE, LLDPE). AB layer combinations are possible; final performance depends on melt index and trial runs.

Q: What are the width and thickness ranges?
A: Effective film width approximately 200–600 mm; single-side thickness 0.01–0.10 mm, adjustable within process limits.

Q: Can the machine be customized or upgraded later?
A: Optional rotary die, various air rings, and quick screen changers are available. Confirm details with the manufacturer.