Mini Blown Film Machine

A laboratory blown film machine is a specialized apparatus used within laboratory settings to manufacture plastic films.

The operational principle of a laboratory blown film machine is akin to that of industrial blown film machines. It involves the transformation of molten plastic materials into film form through heating and extrusion.

This equipment finds common application in plastic material research, new product development, quality control, as well as the exploration of plastic film properties in both academic and industrial research contexts.

It enables researchers to carry out plastic film preparation and studies on a small scale, allowing for the testing of different raw materials, process parameters, and film characteristics. This aids in gaining a better understanding and control over material properties.

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  • It is primarily employed for assessing the film-forming feasibility of polymer materials and the colloidal state within the materials.
  • Furthermore, it is utilized for examining colored dispersions, managing blends, and evaluating the extrudate’s dispersibility.


MachineSingle Layer Blown Film
Screw diameter25mm or customized
L/D33:1 (or customized)
Screw speed0-95rpm
MotorVariable frequency motor or servo motor
Main motorpower4KW (or customized)
Die diameter25mm (or customized)
Max diameter of the film150-180mm (or customized)
Volume (W×D×H)1800×800×2000mm
Weight (kg)450kg
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.