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Blown Film & Extrusion

Blown Film & Extrusion

Low-cost UniVest insulation blankets offer significant protection for employees working near high-temperature plastics manufacturing equipment by confining process heat inside barrels, extruders, dies and hoses. Safe to the touch while machines are running, UniTherm insulation systems reduce the risk of personnel burns from contact with high-temperature surfaces.

UniVest systems also significantly reduce electric costs by lowering ambient air temperature and reducing the energy needed to heat machines. These substantial energy savings often pay for the cost of insulation in less than 12 months. 

We carry both off-the-shelf solutions for any extrusion, blown film or blow molding equipment and custom designed insulation systems. Our unique design technology allows us to create custom blankets with notches, donuts, cut-outs or any other variation required to perfectly fit your equipment. 

UniVest blown film insulation jacket. UniVest extruder insulation jacket.

Insulation Efficiency of UniVest Jackets

The example below shows the surface temperature with insulation systems of various thicknesses. Based on a process temperature of 550°F in a facility with an ambient air temperature of 80°F. We make standard UniVest systems with 1" insulation, but can include thicker insulation for custom specifications.

Insulation Jacket Thickness Surface Temperature Heat Loss (BTU/hr/ft) Efficiency
Bare 548.0°F 5342.00 0%
0.5" 162.3°F 530.00 90.08%
1.0" 124.5°F 272.30 94.90%
1.5" 108.2°F 174.50 96.73%
2.0" 101.7°F 137.90 97.84%
2.5" 97.5°F 115.30 97.84%
3.0" 94.7°F 99.87 98.13%


Design Components

univest, injection molding, plastics, unitherm, plastics manufacturing, insulation jackets, high temperature insulation