3 Layer Blown Film Extrusion Machine – Mini Type

A laboratory blown film machine serves as a specialized tool employed in laboratory environments to produce plastic films.

It facilitates the preparation and investigation of plastic films on a smaller scale, allowing researchers to experiment with various raw materials, process parameters, and film attributes. This enables a more comprehensive comprehension and regulation of material performance.

The operational principles of a laboratory blown film machine closely resemble those of industrial counterparts.

It entails the conversion of molten plastic raw materials into film configuration through the processes of heating and extrusion. This apparatus finds frequent application in plastic material exploration, new product ideation, quality management, as well as in the scholarly and industrial analysis of plastic film properties.

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  • Assess the film-forming feasibility of various polymer composite materials.
  • Utilizing a three-layer co-extrusion structure enhances the film’s tensile strength both laterally and longitudinally, thereby improving puncture resistance and creating a versatile plastic film.
  • The distinctive ABC three-layer co-extrusion flow channel design ensures even thickness layering and stable melt pressure, accommodating different composite materials.


MachineThree layer co-extrusion blown film
Screw diameter25mm*3 or customized
L/D33:1 (or customized)
Screw speed0-95rpm
MotorVariable frequency motor or servo motor
Main motorpower4KW (or customized)
Die diameter30mm (or customized)
Max diameter of the film300mm (or customized)
Volume (W×D×H)2100×950×2300mm
Weight (kg)1100 kg
Power supply3Ø, AC380V

Applications of the laboratory blown film machine

Material Research: Conducting experiments to explore the film-forming characteristics, properties, and behavior of various polymer materials.

Feasibility Testing: Evaluating the feasibility of producing plastic films using different polymers and formulations on a smaller scale before scaling up to industrial production.

New Product Development: Developing and testing new plastic film products with specific properties or functionalities for potential commercialization.

Quality Control: Verifying and ensuring the quality and consistency of plastic films through controlled experiments and analysis in a controlled laboratory environment.

Process Optimization: Fine-tuning the film production process by studying the effects of different process parameters, such as temperature, extrusion rate, and cooling conditions.

Education and Training: Providing a hands-on learning platform for students, researchers, and engineers to understand the principles of film extrusion and polymer behavior.

Prototyping: Creating prototypes of plastic film-based products for initial testing and validation before moving to mass production.

Characterization Studies: Investigating the mechanical, thermal, optical, and barrier properties of plastic films for a deeper understanding of their performance.

Polymer Blend Analysis: Examining the compatibility and behavior of different polymer blends during the film extrusion process.

Academic Research: Contributing to the broader academic understanding of polymer processing and film formation, supporting advancements in the field.