Barrel Heaters - Hasmak.com.tr

Die andFormer <strong>Heaters</strong>Mica StripOptionsExternal FinishingRing <strong>Heaters</strong>Irregular ShapesCross Section FormedWhen ordering ring heaters, specifyinside and outside diameters. Ifmounting holes are required, specifylocation and hole size.Square, Rectangular BandsMica strip heaters can be made intoany practical shape and electricalrating. Examples include: cone, flatcircular, square, rectangular andhexagon.Clamping StylesStrip heaters can be formed on across section for pipingapplications. Specify diameter ofpipe on which heaters are to bemounted."B""B""A""A"Figure 1Figure 3Square or rectangular heaters arenormally used for heating dies onplastic extruders, or the barrels of twinscrew extruders. These can be madein either one or two piececonstruction (see illustrations)."B"Figure 2"A"Referring to the illustrations, thepreferred design is Figure 1 with bentupflange clamping due to the uniformapplied clamping force atthe corners. Next is Figure 2, withbent-up flanges or built-in strappingbrackets at the sides. The leastpreferred design is Figure 3, onepieceheater, due to the lack ofuniform applied clamping force.Cone ShapesHex BandsTop IDHeightBottom ID230Cone shaped heaters are normallyused for special heating applicationswhen heat is required for hoppers orfunnels. They are made strictly tocustomer specifications. Thepreferred method of attachment iswith bent-up flange clamping.Hex shaped heaters are used on thehex shaped portion of the nozzle oninjection molding machines. Adrawing is required when ordering.