Extrusion International 2-2018

43 Extrusion International 2/2018 Intensive Cooling “Height-Adjustable” Twin-Stack for Blown Film Addex Inc. www.addexinc.com Booth W4773 Ther formance ILLIG.de Addex will showcase its latest Intensive Cooling technology at the upcoming NPE2018. The company will launch its “Height- Adjustable” Intensive Cooling Twin-Stack system which is de- signed to optimize performance for both high- and low-melt pro- cesses. Addex offers an enclosed, two- level, stacked, Intensive Cooling system featuring a lower Inten- sive Cooling element that mounts flat to the die and a second, height-adjustable Intensive Cool- ing element just below the air ring. The system is highly adapt- able to changes in materials and supports fast changeovers. The fully-enclosed Intensive Cooling Twin-Stack elements can be separated over a range of 1-in to 16-in, allowing the operator to change the height between the cooling elements to control the amount of cooling. For su- per low-melt materials, a short distance between the elements is ideal. For high-melt strength operation, the cooling zone can be extended to its maximum by the push of a button. The Height- Adjustable Twin-Stack system can be fine-tuned across a broad range of products without time- consuming equipment changes and while the line is running. The original fixed-height Twin- Stack system is proven in the field to increase output by 15% to 20% for very low-melt strength materials, and up to 40% or even 50% for high-melt strength ma- terials. The Height-Adjustable version of the Twin-Stack is ex- pected to produce even greater increases. The system operates over a wide range of configu- rations and materials, while also enhancing bubble stabil- ity. These retrofits are aimed at blown film lines that have been designed for higher outputs and have sufficient extruder and blower capacity to handle the output gains of Intensive Cooling Twin-Stack. With the addition of Addex’s automatic external gauge control (EGC), customers are generating high-quality film at unprecedented output rates. The Height-Adjustable system is fully compatible with Addex’s other cooling products including the Digital Internal Bubble Cool- ing Control, Manual Gauge Con- trol, and Laminar Air Rings. At NPE, Addex will also highlight its Intensive Cooling Dual-Flow Air Rings, available for retrofit since 2016. These replace the standard low-velocity lower lip with a single Intensive Cooling element, delivering a guaran- teed 10% to 15% greater output and better bubble stability, with some processors reporting up to 40% gains in output rate versus the competition.