7 Layer Blown Film Machine

7 Layer Blown Film Machine

The Greentec series of 7-layer, 9-layer, and 11-layer co-extrusion high-barrier blown film lines is designed for the production needs of high-barrier packaging applications. As a professional 7 layer blown film machine solution, the equipment combines advanced extrusion technology with intelligent control systems to efficiently process materials such as PA and EVOH, producing high-performance barrier films with stable output and user-friendly operation. The lines are widely used in industries including food packaging and medical packaging, providing customers with reliable one-stop film production solutions.
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Equipment Advantages

 

Through optimized structural design and carefully matched auxiliary systems, the production line achieves a good balance between film performance and production efficiency, while improving the stability and consistency of production.

Excellent Barrier Performance

  • The equipment adopts specially designed screws, barrels, and die heads, allowing stable processing of high-barrier materials such as PA and EVOH. As an advanced 7 layer blown film machine, it produces films with strong resistance against oxygen, nitrogen, carbon dioxide, water vapor, and other external elements. Compared with conventional films, the barrier performance is significantly improved, helping extend product shelf life while maintaining freshness, flavor, and product quality.

 

Excellent Barrier Performance

  • The equipment adopts specially designed screws, barrels, and die heads, allowing stable processing of high-barrier materials such as PA and EVOH. As an advanced 7 layer blown film machine, it produces films with strong resistance against oxygen, nitrogen, carbon dioxide, water vapor, and other external elements. Compared with conventional films, the barrier performance is significantly improved, helping extend product shelf life while maintaining freshness, flavor, and product quality.
  • Stable and Efficient Production
  • The line is equipped with three major auxiliary systems as standard:
  • Automatic air ring
  • Online thickness measurement system
  • Loss-in-weight feeding system
product-546-684

The automatic air ring improves cooling stability of the bubble, the online thickness gauge monitors and adjusts film thickness in real time, and the gravimetric feeding system ensures accurate raw material supply. Together, these systems help improve output, enhance thickness uniformity, reduce waste, and maintain stable long-term production.

 

Flexible Multi-Layer Configuration

The equipment supports flexible switching between 7-layer, 9-layer, and 11-layer structures to meet different packaging requirements.

 
 

layer configuration

the 7 layer blown film machine is suitable for customers seeking a balance between performance and cost.

 
 

9-layer and 11-layer configurations

provide stronger barrier performance and are suitable for higher-end packaging applications with stricter requirements.

This flexibility allows manufacturers to produce a wider range of barrier film products according to market demand.

 
 

Optimized Core Systems

The overall system is designed to improve both operational convenience and production quality through practical optimization and intelligent control.

 

 

IBC Internal Bubble Cooling System

 

The IBC system adopts linear variable temperature control technology to improve cooling precision inside the bubble. This helps control film shrinkage more accurately and reduces issues such as uneven contraction or deformation.

The airflow structure is also optimized to ensure more uniform cooling and better thickness consistency. At the same time, cooling efficiency is improved to support high-speed production, resulting in smoother film surfaces and more stable product performance.

 

The operating system is designed for practical and user-friendly operation while maintaining precise production control.

 

The interface is clear and intuitive, making operation easier and reducing training time.  

product-283-300

 

The system supports closed-loop control across the whole production line, allowing real-time monitoring and automatic adjustment of production parameters.

 

The simplified interface and streamlined operating logic help meet cleanroom production standards required in industries such as medical and high-end food packaging.

 

7 layer blown film machine Application Areas

 

With strong barrier performance and flexible production capability, the equipment is suitable for various high-end packaging applications.
 

2026-05-09 112841

  • Chilled Food Packaging

Suitable for fresh meat, seafood, and other chilled products. The film effectively blocks moisture and gases, helping extend shelf life and maintain product freshness.

  • Cooked Food Packaging

Applicable to products such as ham, smoked meat, and prepared foods. The barrier structure helps prevent oxidation and moisture penetration, improving product preservation and safety.

  • Medical Packaging

Suitable for medical dressings, disposable medical products, and similar applications requiring high cleanliness and reliable barrier performance. The films help maintain sterility and product safety.

  • Other High-Barrier Packaging

Can also be used for dairy products, powdered products, specialty foods, and other products requiring higher preservation standards.

Production Line Models
We provide multiple machine models to meet different production capacity and width requirements. Customized configurations are also available

 

Model

Lay flat (mm)

Thickness (mm)

Layer structure

Total power (kW)

Max. capacity (kg/h)

JBF-1600-7/9X

1500

0.03-0.2

A/B/C/D/E/F/G & A/B/C/D/E/F/G/H/I

250-300

2000-3000

JBF-1800-7/9X

1600

0.03-0.2

A/B/C/D/E/F/G & A/B/C/D/E/F/G/H/I

300-350

3000-4000

JBF-2300-7/9X

2100

0.03-0.2

A/B/C/D/E/F/G & A/B/C/D/E/F/G/H/I

250-300

4000-5000

 

 The Greentec high-barrier blown film lines are developed around three key goals: stable performance, production efficiency, and operational convenience.

product-349-361
 
  • Improved Product Quality

High-barrier films help protect packaged products and reduce product loss.

  • Higher Production Efficiency

Intelligent control systems reduce manual intervention and improve production stability.

  • Flexible Production

Multiple layer configurations and model options support different production needs.

  • Compliance with Industry Standards

Suitable for cleanroom environments and industries with strict packaging requirements, including medical and premium food packaging.

Greentec is committed to providing reliable and efficient barrier film production solutions. With advanced technology, stable equipment performance, and professional service support, we aim to help customers achieve efficient and long-term production success.

 

For more information about machine specifications, customized solutions, or quotations, please contact us.

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