Barrel Heating System suits process temperatures up to 750°F.

Press Release Summary:




Designed for injection barrels and melt pipes, SmartHeat™ System consists of 2 layers of plasma-sprayed metallized ceramic with nichrome wire wrap sandwiched in between, plus thermal insulation cover that virtually eliminates heat loss to workplace. Because heat from wires is conducted throughout ceramic material, system raises temperature of barrel to target levels more quickly than band heaters, and maintains heat uniformly while minimizing energy use.



Original Press Release:



Fundamentally New Barrel Heating System Increases Injection Molding Process Control, Cuts Energy Use, and Enhances Safety



SmartHeat™ Technology from Nordson XALOY Is 30 to 60% More Energy Efficient than Band Heaters, with 30% Faster Start-Ups and No Heat Losses to the Workplace



NEW CASTLE, PA, U.S.A., -- The first completely “cool-to-the-touch” heating system for injection barrels and melt pipes delivers heat more uniformly and reaches start-up targets more rapidly than band heaters, while substantially reducing energy consumption, it was announced today by Nordson XALOY, which will introduce the technology at K 2013 (Hall 11, Stand A26).



Called SmartHeat™, the new barrel coating consists of two layers of plasma-sprayed metallized ceramic with a nichrome wire wrap sandwiched in between, plus a thermal insulation cover. Because the heat from the wires is conducted throughout the ceramic material, the system raises the temperature of the barrel to target levels more quickly than with band heaters, maintains it more uniformly, and uses less energy. The tightly strapped thermal insulation wrap over the ceramic coating virtually eliminates heat losses to the workplace, saving on air conditioning costs and reducing the risk of operator injury.



Another safety benefit of the new system is the elimination of the fire hazard from having numerous exposed wires connected to multiple heater bands. Instead, all SmartHeat wiring is run underneath the thermal insulation.



The speed and uniformity of heating with the SmartHeat system appears in a side-by-side comparison with an injection press using conventional band heating, showing the effects on four zones. While the SmartHeat system brings the zones to the same target temperature within 15 minutes and then maintains all four at exactly that level, the start-up with the band heaters takes 23 minutes, and there continue to be wide temperature variations in each zone thereafter.



Overall, the SmartHeat barrel coating is 30 to 60% more efficient than band heaters, according to David Hotchkiss, global product manager.



“The consistent, reliable performance of SmartHeat barrel coating enhances process control, increasing output of on-specification product and reducing scrap,” said Mr. Hotchkiss. “The system is designed to last the life of the barrel and eliminates the maintenance tasks associated with heater bands.”



The SmartHeat system can be used for process temperatures up to 750 ºF (400ºC). It is available with new barrels or can be readily retrofitted. 



Photo Captions: 1) SmartHeat™ coating installed on an injection molding line, with thermal insulation visible in green, along with strapping. 2) Barrel temperature distribution, as seen with an infrared camera, showing uniformity with SmartHeat™ system and variation with conventional heater bands.



Nordson XALOY is a leading manufacturer of components and melt delivery systems for injection molding and extrusion machinery, producing barrels, high performance screws, preassembled plasticating systems, heat transfer rolls, melt pumps, screen changers, pelletizers, and cleaning ovens, as well as offering advanced process testing and training services. The company draws on more than eight decades of engineering, materials, process, and application experience to develop solutions for optimizing processes, combating wear, boosting output, and improving quality. Nordson XALOY maintains sales and service offices in the United States, Thailand, Japan, China and Europe and a global network of service points and agents. Visit www.xaloy.com.

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