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Blown Film Station

Our Split Box™ Blown Film Station is an economical and easy-to use cast and blown film extrusion system designed with operators in mind. It’s easy to install and quick to start up, with an easy-thread, “drop through” split box design so operators can thread the web through the station in seconds.


Why Use The Split Box Blown Film Station?


Easy to Install

The high voltage transformer mounts directly to the station, and standard mounting brackets and lifting eyes make installation quick and easy.


Quick Start-Up

One of the biggest benefits of our unique drop-through design means that threading the web through the station is extremely easy and can be done in seconds This allows operators to quickly and easily switch products without slowing down or otherwise burdening production.

Blown Film Treater Rollers


Our split box blown film station is designed with a number of features to maximize durability, including:

  • Electrodes are made of stainless steel to reduce contamination and makes them easy to clean
  • Sturdy Electrode supports enhance rigidity and eliminate sagging
  • Roll bearings are kept outside of the ozone environment, prolonging their life span
  • Roll bearings are enclosed to extend bearing life
  • A zero speed switch is included to automatically shut down the power supply in the event of low line speeds



The treat width can be easily altered to enable lane treating using our stainless steel segmented electrode design in a removable electrode style, allowing you to customize the station to the needs of your application.



The split box blown film station includes a number of safety features such as:

  • Safety interlocks which automatically prevent operation if access covers are removed or the station is in the thread up position 
  • The electrode area is completely covered by aluminum panels
  • The built-in exhaust flanges easily connect to ozone exhaust blowers and destruct systems to protect from ozone emissions

Diagram of Treater System


Additional Features

The split box blown film station has a number of other additional features such as:

  • Easy drop through web thread up design
  • Standard segmented electrode
  • Easy electrode air gap adjustment via external adjustment screws at each end of electrode
  • Easy electrode pitch adjust at each support
  • Interlocked hinged access doors for customer safety and quick access for electrode gap, pitch, and treat width adjustment
  • Zero speed switches to protect ground roll covering 
  • Carbon ground brushes are used to provide direct electrical ground protecting bearings and ensuring proper corona treatment
  • Mounted high voltage transformer simplifying customer installation
  • Carbon track resistant insulators out of direct exhaust are used to isolate electrodes from ground for harsh blown film environment 
  • Corona viewing above electrode or via side sight windows at end of station
  • Easy ground roll removal through top of station


Available Options

Optional equipment is also available including:

  • Manual or hands free pneumatic high voltage switching device
  • Proportional speed control allowing power to increase with speed
  • Tendency drive to assist roll rotation at start of line
  • Dead shaft idler rolls may be supplied or easily added at a later date to carefully guide the web into and out of the treater station
  • 4 idler design available for inside or outside of bubble treatment (never both)
  • Dial indicators for assistance in monitoring electrode gap
  • Slide gate balance dampers located at each exhaust manifold, used to assist in exhaust airflow management
  • Flexible exhaust adaptor kit for aiding in quick installation
  • Easy sleeve cores available for silicone sleeve rolls 
  • Solid or finned shoe electrodes available upon request
  • Available roll coverings: ceramic, silicone sleeve, bonded silicone, epoxy, glass


Split Box Blown Film Station Specifications

  • Treat width capacity: 305 mm to 3300 mm webs
  • Dielectric roll: 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, 350 mm diameters
  • Roll coverings: Silicone Sleeve, Vulcanized Silicone, Epoxy, Hypalon, Ceramic, Glass
  • Electrode styles: 12.5 mm stainless steel segmented as standard with nominal 3 mm, 6 mm and high efficiency fixed stainless steel
  • Web tension: 1.5 PLI or 263 Newton/m - higher PLI or Newton capability can be provided
  • Maximum line speed: Standard design incorporates 200 meter per minute (m/min)
  • Control voltage: 115 VAC
  • Extra thick aluminum end plates and steel frame construction
  • 2 part epoxy paint to custom colors


Pillar Technologies’ Split Box blown film station provides versatile and powerful surface treatment solutions for cast and blown film applications across the flexible packaging industry. Pillar engineers designed this blown film station for unrelenting performance in the most demanding applications. If you’re interested in a split box blown film station or have any questions, don’t hesitate to contact us.


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