In the field of plastics and packaging industry, the cast film extrusion machine is hailed as the "core engine" of precise film manufacturing. Through melt casting forming technology, it transforms polymer materials into films with uniform thickness and excellent performance, widely used in high end scenarios such as new energy, electronic packaging, and medical packaging. As a leading equipment manufacturer in the industry, Suminoe Seiko continues to promote industrial upgrading with innovative cast film extrusion technology!  

 

  I. Why is the Casting Process Irreplaceable?   The Core Value of Cast Film Extrusion Machines  

Cast film extrusion machines stand out with three disruptive advantages:  

   Extreme Uniformity : The melt is linearly extruded through a precision die head, and the thickness tolerance of the film is far lower than industry standards.  

   Zero Surface Defects : The mirror finish cooling roller instantly shapes the film, eliminating defects such as scratches and crystal points.  

   Free Multi Layer Lamination : Supporting co extrusion structures of 7 layers or more to achieve composite functions such as barrier and antibacterial properties.  

Suminoe Seiko's Insight: When film thickness enters the micron era, the process precision of cast film extrusion machines directly determines product competitiveness!  

 

  II. Overcoming Industry Pain Points   Suminoe Seiko's Breakthrough Approach for Cast Film Extrusion Machines  

Facing industry challenges such as high viscosity material casting and easy film breakage of ultra thin films, Suminoe Seiko breaks through with innovative solutions:  

   Intelligent Casting Closed Loop System : An online thickness gauge provides real time data feedback, automatically adjusting die head bolts to reduce thickness deviation.  

   Low Shear Screw Design : Minimizes degradation of heat sensitive materials and ensures the activity of functional additives.  

   Ultra High Speed Rewinding Technology : Contact type turret rewinding achieves millisecond level tension response, eliminating film roll wrinkling.  

 

  III. Three Golden Application Scenarios: How Cast Film Extrusion Machines Reshape Industries?  

   1. New Energy Battery Packaging  

Suminoe Seiko's multi layer co extrusion cast film extrusion machine produces the barrier layer of aluminum plastic films, with an oxygen transmittance approaching zero, serving as the safety "guardian" for flexible packaging batteries.  

 

   2. Electronic Optical Films  

Optical grade TPU/PC films formed by cast film extrusion machines have a haze value lower than industry standards, applied to buffer layers for foldable screens and polarizer substrates.  

 

   3. Medical Grade Packaging  

Medical dialysis membranes and bacterial barrier pharmaceutical packaging films are manufactured through sterile cast film extrusion production lines, with biocompatibility meeting FDA certification.  

 

  IV. The Future is Here: Four Trends in the Technical Upgrading of Cast Film Extrusion Machines  

1.  Digital Twin : Virtual commissioning technology shortens equipment delivery cycles.  

2.  Green Energy Saving : Electromagnetic heating technology reduces energy consumption.  

3.  Modular Expansion : Enables quick switching of coating and slitting functional units.  

4.  New Material Adaptation : Breakthroughs in processing special materials such as carbon fiber reinforced resins.