Multilayer Blown Film line
to produce variety of films like liquid packaging films, ultra
high barrier films, meat and cereal packaging films, oil
packaging films, pharmaceutical and medical grade films, green
house films, geomembrane and chemical / soap packaging films
programmable logic controller (PLC) features a large color touch
screen control panel for access to line setup and operation.
The gravimetric system weights the resin before feeding it into
the extruder. This unit communicates with the PLC ensuring accurate
measurement of resin into the extruder maintaining consistent
The extruder heats the resin so that it becomes homogenous upon
exiting the extruder. Custom and traditional extruder length
to diameter ratios (L/D) are tailored to suit the resin in order
to maximize output and efficiency. Up to 8" diameter screws
can be designed for maximum throughput.
Die packages form the molten resin into a thin tubular film.
Pancake and spiral die packages are designed with the aid of
computer simulations ensuring even mixing and heat distribution
of the molten resin. Up to 11 layer films can be constructed
using these die packages.
Single and dual lip air rings with up to 110" diameter
and fully automatic computer gauge control.
The bubble is pressed flat in the collapsing frame and pulled
through two rollers which are referred to as the top nip. The
flattened bubble is now referred to as the layflat. Touch button
controls are able to open or close the position of the collapsing
frame in an effort to avoid web wandering, eliminate the formation
of wrinkles and maintain the quality of the layflat.
Modular design for easy assembly and solid structural construction
The bubble guide increases the stability of the blown film tube
providing support to maintain its shape. It can be adjusted
to move up or down and open or close its arms to provide support
along the length of the tube. Contact surfaces can be selected
according to the thickness and surface type (high slip or tacky)
of the film.
The chiller unit provides a steady supply of cooled air that
can be fed to the air ring and/or the IBC to solidify the film.
The horizontal film oscillator (HFO) ensures uniform gauge distribution
while minimizing web wandering and eliminating wrinkles. Alpha
Marathon HFOs feature a low profile height ensuring it can be
placed on top of the tower without any additional height requirements.
Treater stations are used for applications that require surface
treatment of one or both sides of the film. For applications
such as graphics and labelling, surface treatment increases
the printability of the surface so that the ink adheres to the
The web guide ensures the web follows a consistent path so that
when the film is wound into a roll, the edges are aligned.
The winder gathers the processed film in a finished roll. Alpha
Marathon surface and turret winders produce quality, wrinkle-free
film rolls at high speeds.