Barrel Heaters - Hasmak.com.tr

W A T L O WHot RunnerManifold <strong>Heaters</strong>Thick Film ManifoldWatlow’s innovative thick filmmanifold heaters allow hot runneroperations to gain more control overtemperature uniformity while reducingoverall cycle times.Thick film manifold heaters aredesigned to clamp directly to theouter surface of the hot runnermanifold. This clamp-on designprovides many advantages to hotrunner molds including:• Uniform heat distribution• Smaller-mass hot runnermanifolds, since the extra steelrequired for the tubular heaters iseliminated; smaller manifolds willheat up more quickly, reducing theoverall start-up time of the injectionmolding machine• Design flexibility• Shape of the heater matches theshape of the manifold allowing theheater to adapt to any hot runnergeometry• Simpler manufacturing, as thegrooves that were traditionallymachined in the steel manifold toaccept tubular or cable heatersare eliminatedThick film manifold heaters aremanufactured utilizing Watlow’s thickfilm heating technology on stainlesssteel plates. The basis for the lowprofiles lies in its unique sandwichdesign. Watlow’s thick film resistanceheaters are made of several layeredmaterials. A glassy dielectric filmcoats the substrate and is thencovered with a custom-designedresistor circuit and a final dielectricoverglaze. The thick film circuitryallows the heater to vary heat outputacross the entire surface of the heaterhelping to control and correct virtuallyany temperature uniformity issuescaused by conventional heaters.Layers OfDielectricGlassDielectricOverglazeInjection MoldingHot Runner Manifold <strong>Heaters</strong>SubstrateMaterialFeatures and BenefitsLow profile package• Allows heater to be designed to fitaround mounting holes, notches,sensors, etc.Quick thermal response withinmanifold during start-up andoperation• Allows for a more efficient system<strong>Heaters</strong> not affected by plasticresin leakage and are easilyreplaced• Reduces machine downtimeElimination of milled channelrequired for cartridge, cable ortubular heaters• Reduces overall mold heightand costsCustom-DesignedResistor CircuitLower overall thermal mass inmanifold• Reduces power consumption• Allows for faster thermal responseSuperior thermal profile in themanifold• Generates higher part qualityand yield• Allows for shorter recoverybetween cyclesMoisture-resistant non-porousglass film construction• Eliminates need for soft starting,minimizes current leakage andultimately reduces cost byeliminating special need of GFCIprotectionRobust industrial heaters• Designed to operate in24 x 7 x 365 hour applications143