[{"data":1,"prerenderedAt":836},["ShallowReactive",2],{"catalog:meta":3,"guides:page:\u002Finjection-molding-machine-parts\u002Fheaters:*":258,"guides:topics:heaters::path,title,short,description,item":619,"diagram:id:barrel-heating":651,"catalog:parts:heaters:EC-HT-01,EC-HT-02":815},{"categories":4,"machines":132,"zones":212,"totals":255},[5,35,59,122],{"id":6,"name":7,"slug":8,"description":9,"partCount":10,"subcategories":11},"EC","Electrical Components","electrical","Electrical systems and components for injection molding machines including heaters, thermocouples, servo motors, and controllers.",11,[12,17,22,27,31],{"id":13,"name":14,"slug":15,"partCount":16},"EC-CBC","Circuit Boards & Controllers","circuit-boards",4,{"id":18,"name":19,"slug":20,"partCount":21},"EC-CE","Connectors & Cables","connectors-cables",2,{"id":23,"name":24,"slug":25,"partCount":26},"EC-GEP","Servo Motors & Drives","servo-motors",1,{"id":28,"name":29,"slug":30,"partCount":21},"EC-HT","Heaters","heaters",{"id":32,"name":33,"slug":34,"partCount":21},"EC-SF","Safety Components","safety",{"id":36,"name":37,"slug":38,"description":39,"partCount":40,"subcategories":41},"HY","Hydraulic Components","hydraulic","Complete range of hydraulic system components including pumps, valves, motors, and pressure controls for injection molding machines.",14,[42,46,51,55],{"id":43,"name":44,"slug":45,"partCount":26},"HY-AU","Accumulators","accumulators",{"id":47,"name":48,"slug":49,"partCount":50},"HY-CV","Control Valves","control-valves",6,{"id":52,"name":53,"slug":54,"partCount":26},"HY-MO","Monitors & Gauges","monitors-gauges",{"id":56,"name":57,"slug":58,"partCount":50},"HY-PW","Pumps & Motors","pumps-motors",{"id":60,"name":61,"slug":62,"description":63,"partCount":64,"subcategories":65},"MC","Mechanical Components","mechanical","Mechanical parts and assemblies including barrels, screws, tie bars, bushings, platens, and clamping components.",42,[66,71,75,80,85,89,93,97,101,105,109,114,118],{"id":67,"name":68,"slug":69,"partCount":70},"MC-BC","Barrels & Cylinders","barrels-cylinders",5,{"id":72,"name":73,"slug":74,"partCount":16},"MC-SB","Screw Barrels & Seals","screws",{"id":76,"name":77,"slug":78,"partCount":79},"MC-TC","Tie Bars & Columns","tie-bars",7,{"id":81,"name":82,"slug":83,"partCount":84},"MC-GZ","Bushings & Guides","bushings-guides",8,{"id":86,"name":87,"slug":88,"partCount":26},"MC-PP","Platens","platens",{"id":90,"name":91,"slug":92,"partCount":70},"MC-TL","Toggle & Links","toggle-links",{"id":94,"name":95,"slug":96,"partCount":21},"MC-CC","Clamping Components","clamping",{"id":98,"name":99,"slug":100,"partCount":21},"MC-GMP","Tools & Accessories","tools-accessories",{"id":102,"name":103,"slug":104,"partCount":21},"MC-ES","End Caps & Plates","end-caps",{"id":106,"name":107,"slug":108,"partCount":26},"MC-SR","Seals & Rings","seals-rings",{"id":110,"name":111,"slug":112,"partCount":113},"MC-JM","Joints & Mounts","joints-mounts",3,{"id":115,"name":116,"slug":117,"partCount":26},"MC-SG","Safety Guards","safety-guards",{"id":119,"name":120,"slug":121,"partCount":26},"MC-CR","Clamping Mechanism","clamping-mechanism",{"id":123,"name":124,"slug":125,"description":126,"partCount":113,"subcategories":127},"O","Other Components","other","Additional components including filters, cooling systems, lubrication parts, and other auxiliary equipment.",[128],{"id":129,"name":130,"slug":131,"partCount":113},"O-TC","Filters & Cooling","filters-cooling",[133,143,161,172,180,188,194,200,205],{"id":134,"name":135,"slug":134,"series":136,"partCount":142},"haitian","Haitian International",[137,138,139,140,141],"Mars Series (MA)","Jupiter Series (JU)","Zhafir Venus Series (VE)","Zhafir Zeres Series (ZE)","Zhafir Jeres Series (JE)",68,{"id":144,"name":145,"slug":144,"series":146,"partCount":160},"yizumi","Yizumi",[147,148,149,150,151,152,153,154,155,156,157,158,159],"A6 Series","A5-EU Series","A5-N Series","SKIII Series","DP Series","D1 Series","FF Series","FF-M Series","P Series","CG-P Series","VM Series","SPET Series","LSR Series",12,{"id":162,"name":163,"slug":162,"series":164,"partCount":171},"chen-hsong","Chen Hsong",[165,166,167,168,169,170],"JETMASTER MK Series","JETMASTER SVP Series","SUPERMASTER Series","EASYMASTER Series","SPARK Series","JETMASTER C2 Series",10,{"id":173,"name":174,"slug":173,"series":175,"partCount":179},"tederic","Tederic",[176,177,178],"NEO Series","D Series (Two-Platen)","DE Series (All-Electric)",0,{"id":181,"name":182,"slug":181,"series":183,"partCount":179},"borch","Borch",[184,185,186,187],"BU Series (Two-Platen)","BS-III Series (Servo)","BE Series (All-Electric)","BM Series (Multi-color)",{"id":189,"name":190,"slug":189,"series":191,"partCount":179},"log-machine","LOG Machine",[192,193],"LOG-SE Series","LOG-EE Series (All-Electric)",{"id":195,"name":196,"slug":195,"series":197,"partCount":179},"donghua","Donghua",[198,199],"DH Series (Servo)","DH-TP Series (Two-Platen)",{"id":201,"name":202,"slug":201,"series":203,"partCount":179},"sunbun","Sunbun",[204],"Sunbun Servo Series",{"id":206,"name":207,"slug":206,"series":208,"partCount":179},"lijin","L.K. Machinery (Lijin)",[209,210,211],"POTENZA Series","FORZA Series (Two-Platen)","ELETTRICA Series (All-Electric)",[213,217,221,225,228,231,235,238,242,248,251],{"id":214,"number":26,"name":215,"role":216,"partCount":21},"clamp-cylinder","Clamping cylinder","The hydraulic cylinder behind the rear platen. It drives the crosshead that straightens the toggle links, which opens and closes the mold and builds the clamping force.",{"id":218,"number":21,"name":219,"role":220,"partCount":50},"toggle","Toggle mechanism","Links, pins and bushings between the rear and moving platens. They multiply the force of the clamping cylinder and lock the mold shut while plastic is injected.",{"id":222,"number":113,"name":223,"role":224,"partCount":113},"ejector","Ejector","A small cylinder behind the moving platen that pushes the ejector rods and plate forward to release the finished part from the mold.",{"id":78,"number":16,"name":226,"role":227,"partCount":40},"Tie bars & bushings","Four steel columns that join the platens, guide the moving platen and carry the clamping force. Tie bar nuts lock them in place; bushings guide the moving platen along them.",{"id":88,"number":70,"name":229,"role":230,"partCount":21},"Platens & mold plates","The fixed and moving platens carry the two halves of the mold; the rear platen anchors the toggle. Locating rings and clamping plates center and hold the mold.",{"id":232,"number":50,"name":233,"role":234,"partCount":50},"barrel-screw","Barrel, screw & nozzle","The screw turns inside the heated barrel to melt and mix the plastic, then moves forward to inject it through the nozzle into the mold. The screw tip and check ring stop melt from flowing back.",{"id":30,"number":79,"name":236,"role":237,"partCount":113},"Heater bands & sensors","Heater bands around the barrel and nozzle melt the plastic. Thermocouples measure each heating zone so the controller can hold the set temperature.",{"id":239,"number":84,"name":240,"role":241,"partCount":79},"injection-unit","Injection unit","Injection cylinders push the screw forward, the hydraulic (plasticizing) motor turns it, and the carriage moves the unit against the mold on its guide rails.",{"id":243,"number":244,"name":245,"role":246,"partCount":247},"hydraulics",9,"Hydraulic unit","The pump, motor, valves, accumulator, filters and oil cooler in the machine base. They supply and control the oil pressure for every movement of the machine.",16,{"id":8,"number":171,"name":249,"role":250,"partCount":244},"Electrical cabinet","The controller, I\u002FO and drive boards, servo drives, contactors and safety switches that run and protect the machine.",{"id":252,"number":10,"name":253,"role":254,"partCount":21},"feet","Machine feet","Leveling bolts and anti-vibration pads under the machine base that keep the machine level and stop vibration spreading to the floor.",{"parts":256,"subcategories":257},70,23,{"id":259,"title":260,"body":261,"description":591,"diagram":592,"extension":593,"faq":594,"item":610,"lastModified":611,"meta":612,"navigation":613,"order":610,"parts":610,"path":614,"seo":615,"seoTitle":616,"short":610,"stem":617,"__hash__":618},"guides\u002Finjection-molding-machine-parts\u002Fheaters.md","Heater bands and thermocouples of an injection molding machine",{"type":262,"value":263,"toc":574},"minimark",[264,281,286,289,313,322,335,339,344,351,355,368,372,375,379,382,386,398,401,413,417,425,429,437,441,490,498,502,508,528,547,551],[265,266,267,268,272,273,276,277,280],"p",{},"The heaters of an injection molding machine are the electric ",[269,270,271],"strong",{},"heater bands"," clamped around the barrel and the nozzle, the ",[269,274,275],{},"thermocouples"," that measure the temperature of each zone, and the ",[269,278,279],{},"temperature controller"," that switches the bands on and off. Together they bring the barrel up to processing temperature before production starts and hold every zone at its set point during the cycle. The numbered drawing shows a barrel with its nozzle heater, ceramic heater bands, terminal boxes, clamp bolts and thermocouples; this guide explains what each part does, how the system fails, and what to send when you need a replacement.",[282,283,285],"h2",{"id":284},"how-barrel-heating-works-in-the-molding-cycle","How barrel heating works in the molding cycle",[265,287,288],{},"The heaters do two different jobs:",[290,291,292,303],"ol",{},[293,294,295,298,299,302],"li",{},[269,296,297],{},"Heating up."," From a cold start, the bands supply all the heat. The controller runs each zone up to its set point, and the barrel then needs time to ",[269,300,301],{},"soak"," so the heat reaches the bore and the plastic left inside. Many controllers block screw rotation and injection until every zone is within its tolerance band, because turning the screw on cold plastic can break the screw tip or damage the screw.",[293,304,305,308,309,312],{},[269,306,307],{},"Production."," Once the machine is cycling, the plastic gets its heat from two sources: the bands, through the barrel wall, and ",[269,310,311],{},"shear heat"," from the screw turning and from back pressure. How much each contributes depends on the material, the screw speed, the back pressure and the cycle time. The front zones often need little heater power, and can even rise above their set point with the band switched off.",[265,314,315,316,321],{},"Each zone is a closed loop: one or more bands, one thermocouple, and one controller output. The controller compares the thermocouple reading with the set point and switches power to the bands through a solid-state relay or a contactor. The feed throat at the back of the barrel is not heated; it is water-cooled so the pellets stay solid until the screw takes them in (see ",[317,318,320],"a",{"href":319},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fhopper-and-feed-throat\u002F","hopper and feed throat",").",[265,323,324,325,329,330,334],{},"How the zones are set from the feed end to the nozzle is explained in ",[317,326,328],{"href":327},"\u002Finjection-molding-machine-parts\u002Fheaters\u002Fbarrel-temperature-zones\u002F","barrel temperature zones",", and how the controller holds them in ",[317,331,333],{"href":332},"\u002Finjection-molding-machine-parts\u002Fheaters\u002Ftemperature-control\u002F","temperature control",".",[282,336,338],{"id":337},"the-parts-of-the-barrel-heating-system","The parts of the barrel heating system",[340,341,343],"h3",{"id":342},"barrel","Barrel",[265,345,346,347,334],{},"The steel barrel the screw turns in. Its outside is divided into heating zones from the feed throat to the nozzle, and the bands must sit flat on a clean barrel surface to pass their heat into it. The barrel itself, its bore and its wear are covered in the ",[317,348,350],{"href":349},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fbarrel\u002F","barrel guide",[340,352,354],{"id":353},"ceramic-heater-bands","Ceramic heater bands",[265,356,357,358,362,363,367],{},"Each band heats one zone, or part of a zone on a long barrel. Ceramic bands are widely used on barrels; mica bands, mineral-insulated bands and cast heaters are also used. Size, power and voltage must match the zone: a band connected to a higher voltage than its rating produces far more power than it was designed for and burns out. See ",[317,359,361],{"href":360},"\u002Finjection-molding-machine-parts\u002Fheaters\u002Fheater-band-types\u002F","heater band types"," for how they compare, and the ",[317,364,366],{"href":365},"\u002Fparts\u002Fec-ht-01\u002F","ceramic heater bands"," we supply.",[340,369,371],{"id":370},"ceramic-blocks-and-coil","Ceramic blocks and coil",[265,373,374],{},"Inside the steel shell of a ceramic band, a resistance coil runs through rows of ceramic blocks that hold it in place and insulate it from the shell. The blocks conduct and radiate heat into the barrel. A cracked block or a coil that has sagged against the shell can cause a short to earth or an open circuit.",[340,376,378],{"id":377},"terminal-box","Terminal box",[265,380,381],{},"A cover over the band's power terminals, where the heater cable connects. Terminals run hot, so loose connections oxidize and burn, and molten plastic on the terminals or a damaged cover can cause a short. Use heat-resistant cable and keep it off the hot barrel.",[340,383,385],{"id":384},"clamp-bolt","Clamp bolt",[265,387,388,389,393,394,334],{},"The clamp bolt tightens the band around the barrel so its heat passes into the steel. A loose band leaves an air gap: the element runs hotter than it should, the zone heats slowly, and the band fails early. A ",[317,390,392],{"href":391},"\u002Fparts\u002Fmc-gmp-02\u002F","heater band removal tool"," helps free a band stuck to the barrel by burnt plastic; the full procedure is in ",[317,395,397],{"href":396},"\u002Finjection-molding-machine-parts\u002Fheaters\u002Freplacing-heater-bands\u002F","replacing heater bands",[340,399,400],{"id":275},"Thermocouples",[265,402,403,404,408,409,334],{},"A thermocouple is set into the barrel wall in each zone, usually between the bands, and sends the controller a small voltage that depends on the temperature. If it is the wrong type, damaged, or not seated in its hole, the controller holds the zone at the wrong temperature, often without any alarm. See the ",[317,405,407],{"href":406},"\u002Finjection-molding-machine-parts\u002Fheaters\u002Fthermocouple\u002F","thermocouple guide"," and our article on ",[317,410,412],{"href":411},"\u002Fblog\u002Fthermocouple-types-injection-molding\u002F","thermocouple types and mounting styles",[340,414,416],{"id":415},"nozzle-heater","Nozzle heater",[265,418,419,420,424],{},"A small band, coil or cast heater around the nozzle keeps the melt at temperature between shots. The nozzle touches the cooled sprue bushing on every shot, so this zone loses heat quickly and is the one most likely to freeze off or, when set too hot, to drool. See the ",[317,421,423],{"href":422},"\u002Finjection-molding-machine-parts\u002Fheaters\u002Fnozzle-heater\u002F","nozzle heater"," page.",[340,426,428],{"id":427},"temperature-controller","Temperature controller",[265,430,431,432,436],{},"The temperature section of the machine controller, or a separate controller on some older machines. It runs a control loop for every zone, raises alarms when a zone leaves its tolerance band and, on many machines, blocks screw rotation and injection until the barrel is at temperature. The wider control system is covered in the ",[317,433,435],{"href":434},"\u002Finjection-molding-machine-parts\u002Felectrical\u002Fcontroller\u002F","machine controller"," guide.",[282,438,440],{"id":439},"common-heating-problems-and-their-symptoms","Common heating problems and their symptoms",[442,443,444,450,456,462,468,474,480],"ul",{},[293,445,446,449],{},[269,447,448],{},"A zone never reaches its set point while the output shows 100%."," A band has burnt open, a cable or terminal is broken, a fuse or breaker has tripped, or the relay is not switching.",[293,451,452,455],{},[269,453,454],{},"A zone runs above its set point with the output at 0%."," Shear heat from the screw, a relay stuck closed, a thermocouple pulled out of its hole, or two zones' thermocouples swapped.",[293,457,458,461],{},[269,459,460],{},"The temperature swings around the set point."," A thermocouple with poor contact, a loose band, or control settings that no longer suit the zone.",[293,463,464,467],{},[269,465,466],{},"The earth leakage breaker trips when the heaters switch on."," Moisture or plastic inside a band, or damaged cable insulation touching metal.",[293,469,470,473],{},[269,471,472],{},"Unmelted pellets, high screw torque or slow recovery."," A cold zone, often the rear or middle one. This loads the screw and its drive.",[293,475,476,479],{},[269,477,478],{},"Black specks, burnt material or gas."," A zone running too hot, or a thermocouple reading lower than the real temperature.",[293,481,482,485,486,334],{},[269,483,484],{},"Nozzle freezing or drooling."," A nozzle heater problem; see ",[317,487,489],{"href":488},"\u002Fblog\u002Finjection-nozzle-problems-troubleshooting\u002F","nozzle problems",[265,491,492,493,497],{},"Check before replacing: a clamp meter on the heater cable shows whether the band draws current when the output is on, and a handheld probe on the barrel shows whether the thermocouple reading is plausible. Several of these symptoms also come from a worn screw and barrel, so read the ",[317,494,496],{"href":495},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002F","barrel and screw guide"," if the heating checks out.",[282,499,501],{"id":500},"what-to-send-for-a-replacement-quote","What to send for a replacement quote",[265,503,504,505,507],{},"For ",[269,506,271],{},", send:",[290,509,510,513,516,519,522,525],{},[293,511,512],{},"The machine brand and model, and which zone the band is for.",[293,514,515],{},"The inside diameter and width of the band.",[293,517,518],{},"The power (W) and voltage from the band's label.",[293,520,521],{},"The construction: ceramic or mica, one piece or two halves, and the number of clamp bolts.",[293,523,524],{},"The connection: terminal box, screw terminals or lead wires, and the lead length.",[293,526,527],{},"Any hole or cut-out for a thermocouple, and a photo of the old band.",[265,529,504,530,532,533,537,538,542,543,334],{},[269,531,275],{},", send the type (K or J, as shown on the controller or the old sensor), the mounting style, the thread size, the probe length, the cable length and the plug. See our ",[317,534,536],{"href":535},"\u002Fparts\u002Fec-ht-02\u002F","thermocouple sensors"," and the ",[317,539,541],{"href":540},"\u002Fcategories\u002Felectrical\u002Fheaters\u002F","heaters category",", then ",[317,544,546],{"href":545},"\u002Frequest-quote\u002F","request a quote",[282,548,550],{"id":549},"maintenance-that-keeps-the-heaters-working","Maintenance that keeps the heaters working",[442,552,553,556,559,562,565,568,571],{},[293,554,555],{},"Watch each zone's actual temperature and output. A zone that needs more output than it used to at the same settings has a weakening band or a band that has lost contact.",[293,557,558],{},"Re-tighten the clamp bolts of a new band after its first heat-up, and check all clamps at planned stops.",[293,560,561],{},"Fix nozzle and front flange leaks promptly. Plastic that runs under a band insulates it, burns, and causes the next failure.",[293,563,564],{},"Inspect terminal boxes and cables for discoloration, brittle insulation and loose terminals.",[293,566,567],{},"Check that every thermocouple is fully seated and its cable undamaged, and compare readings with a handheld probe from time to time.",[293,569,570],{},"Label every band cable and thermocouple with its zone, so a replacement is never connected to the wrong output.",[293,572,573],{},"If the barrel has insulation covers, refit them after maintenance: they reduce heat loss and protect people from the hot barrel.",{"title":575,"searchDepth":21,"depth":21,"links":576},"",[577,578,588,589,590],{"id":284,"depth":21,"text":285},{"id":337,"depth":21,"text":338,"children":579},[580,581,582,583,584,585,586,587],{"id":342,"depth":113,"text":343},{"id":353,"depth":113,"text":354},{"id":370,"depth":113,"text":371},{"id":377,"depth":113,"text":378},{"id":384,"depth":113,"text":385},{"id":275,"depth":113,"text":400},{"id":415,"depth":113,"text":416},{"id":427,"depth":113,"text":428},{"id":439,"depth":21,"text":440},{"id":500,"depth":21,"text":501},{"id":549,"depth":21,"text":550},"How barrel heating works on an injection molding machine: heater bands, nozzle heater, thermocouples, zones and temperature control, common faults and replacement.","barrel-heating","md",[595,598,601,604,607],{"question":596,"answer":597},"What do the heater bands do on an injection molding machine?","Heater bands are electric resistance heaters clamped around the barrel and nozzle. They bring the barrel up to processing temperature before production and keep each zone at its set temperature during the cycle, while the turning screw adds shear heat to the plastic.",{"question":599,"answer":600},"Why does one barrel zone run above its set temperature?","The most common reason is shear heat from the screw, which can heat a front zone above its set point even with the heater switched off. Other causes are a solid-state relay or contactor stuck closed, a thermocouple that has slipped out of its hole, or thermocouple cables plugged into the wrong zones.",{"question":602,"answer":603},"How do I know if a heater band has failed?","The zone heats slowly or not at all while the controller shows a high output. With the power isolated, measure the band's resistance: an open circuit means a broken element, and an insulation test between the terminals and the shell shows whether it is leaking to earth.",{"question":605,"answer":606},"Are ceramic or mica heater bands better for an injection molding barrel?","Both work. Ceramic bands handle higher temperatures and lose less heat to the air, which is why many machines use them on the barrel; mica bands are thinner and cheaper but need a very tight fit. Replace a band with the same type, size, power and voltage unless the machine maker approves a change.",{"question":608,"answer":609},"What information is needed to quote a replacement heater band?","The inside diameter and width, the power and voltage from the label, the construction (ceramic or mica, one piece or two halves), the connection type and lead length, and any hole for a thermocouple. Add the machine model, the zone, and a photo of the old band.",null,"2026-11-01",{},true,"\u002Finjection-molding-machine-parts\u002Fheaters",{"title":260,"description":591},"Injection Molding Machine Heater Bands and Thermocouples","injection-molding-machine-parts\u002Fheaters","vF6W8UPrYMW2XQfO_lh5zbXOI19G4_GwpDAdTYzaeJ4",[620,626,630,635,640,645],{"path":621,"title":622,"short":623,"description":624,"item":625},"\u002Finjection-molding-machine-parts\u002Fheaters\u002Fheater-band-types","Heater band types for injection molding machines","Heater band types","Heater band types for injection molding barrels and nozzles: ceramic, mica, mineral-insulated and cast heaters, how they differ, and how to choose a replacement.","bands",{"path":627,"title":628,"short":416,"description":629,"item":415},"\u002Finjection-molding-machine-parts\u002Fheaters\u002Fnozzle-heater","Nozzle heater of an injection molding machine","What the nozzle heater on an injection molding machine does, the band and coil types used, why nozzle zones freeze or drool, and how to check and replace the heater.",{"path":631,"title":632,"short":633,"description":634,"item":275},"\u002Finjection-molding-machine-parts\u002Fheaters\u002Fthermocouple","Thermocouple of an injection molding machine","Thermocouple","How the thermocouples on an injection molding machine barrel measure each zone, where they sit, the faults that give wrong readings, and how to test and replace one.",{"path":636,"title":637,"short":638,"description":639,"item":610},"\u002Finjection-molding-machine-parts\u002Fheaters\u002Ftemperature-control","Barrel temperature control on an injection molding machine","Temperature control","How an injection molding machine temperature controller holds each barrel zone: PID control, relays, alarms, and how to diagnose zones that run hot or cold.",{"path":641,"title":642,"short":643,"description":644,"item":625},"\u002Finjection-molding-machine-parts\u002Fheaters\u002Fbarrel-temperature-zones","Barrel temperature zones and temperature profile","Barrel temperature zones","The barrel temperature zones of an injection molding machine, how to set a rising, flat or reverse temperature profile, and why melt temperature differs.",{"path":646,"title":647,"short":648,"description":649,"item":650},"\u002Finjection-molding-machine-parts\u002Fheaters\u002Freplacing-heater-bands","Replacing heater bands on an injection molding machine","Replacing heater bands","How to find a failed heater band on an injection molding machine, remove it with a heater band removal tool, fit and tighten the new band, and check the zone.","clamp",{"diagram":652},{"title":653,"description":654,"base":655,"labels":659,"items":664},"Parts of barrel heating","Line drawing of an injection molding machine barrel with ceramic heater bands, terminal boxes, clamps, a cut-away band, thermocouples and the nozzle heater, numbered.",{"solid":656},[657,658],"M548 140h40a2 2 0 0 1 2 2v80a2 2 0 0 1 -2 2h-40a2 2 0 0 1 -2 -2v-80a2 2 0 0 1 2 -2z","M554 140L542 96L594 96L582 140Z",[660],{"x":661,"y":662,"text":663},568,88,"HOPPER",[665,678,691,703,725,775,792],{"id":342,"name":343,"role":666,"subcategory":67,"marker":667,"shapes":671},"The steel barrel the screw turns in. Its heating zones run from the feed throat to the nozzle.",[668,669,668,670],108,336,216,{"solid":672,"hidden":676},[673,674,675],"M98 148h446a2 2 0 0 1 2 2v64a2 2 0 0 1 -2 2h-446a2 2 0 0 1 -2 -2v-64a2 2 0 0 1 2 -2z","M62 164h32a2 2 0 0 1 2 2v32a2 2 0 0 1 -2 2h-32a2 2 0 0 1 -2 -2v-32a2 2 0 0 1 2 -2z","M60 170L42 177L42 187L60 194Z",[677],"M104 166h436v32h-436z",{"id":415,"name":416,"role":679,"parts":680,"marker":682,"shapes":686},"A small band on the nozzle keeps the melt at temperature between shots.",[681],"EC-HT-01",[683,684,683,685],80,24,156,{"solid":687,"line":689},[688],"M67 156h18a3 3 0 0 1 3 3v46a3 3 0 0 1 -3 3h-18a3 3 0 0 1 -3 -3v-46a3 3 0 0 1 3 -3z",[690],"M70 156L70 140",{"id":625,"name":354,"role":692,"parts":693,"marker":694,"shapes":697},"Each band heats one zone of the barrel. The controller switches it on and off to hold the set temperature.",[681],[695,684,695,696],140,128,{"solid":698},[699,700,701,702],"M123 128h58a3 3 0 0 1 3 3v102a3 3 0 0 1 -3 3h-58a3 3 0 0 1 -3 -3v-102a3 3 0 0 1 3 -3z","M229 128h58a3 3 0 0 1 3 3v102a3 3 0 0 1 -3 3h-58a3 3 0 0 1 -3 -3v-102a3 3 0 0 1 3 -3z","M335 128h58a3 3 0 0 1 3 3v102a3 3 0 0 1 -3 3h-58a3 3 0 0 1 -3 -3v-102a3 3 0 0 1 3 -3z","M441 128h58a3 3 0 0 1 3 3v102a3 3 0 0 1 -3 3h-58a3 3 0 0 1 -3 -3v-102a3 3 0 0 1 3 -3z",{"id":377,"name":378,"role":704,"parts":705,"marker":706,"shapes":710},"Covers the band’s power terminals, where the heater cable connects.",[681],[707,684,708,709],190,160,114,{"solid":711,"line":716},[712,713,714,715],"M146 114h12a2 2 0 0 1 2 2v10a2 2 0 0 1 -2 2h-12a2 2 0 0 1 -2 -2v-10a2 2 0 0 1 2 -2z","M252 114h12a2 2 0 0 1 2 2v10a2 2 0 0 1 -2 2h-12a2 2 0 0 1 -2 -2v-10a2 2 0 0 1 2 -2z","M358 114h12a2 2 0 0 1 2 2v10a2 2 0 0 1 -2 2h-12a2 2 0 0 1 -2 -2v-10a2 2 0 0 1 2 -2z","M464 114h12a2 2 0 0 1 2 2v10a2 2 0 0 1 -2 2h-12a2 2 0 0 1 -2 -2v-10a2 2 0 0 1 2 -2z",[717,718,719,720,721,722,723,724],"M148 114L148 102","M156 114L156 102","M254 114L254 102","M262 114L262 102","M360 114L360 102","M368 114L368 102","M466 114L466 102","M474 114L474 102",{"id":726,"name":371,"role":727,"parts":728,"marker":729,"shapes":732},"ceramic","Inside the steel shell (cut away here), a resistance coil runs through ceramic blocks that hold it in place and insulate it.",[681],[730,669,730,731],240,233,{"solid":733,"line":766},[734,735,736,737,738,739,740,741,742,743,744,745,746,747,748,749,750,751,752,753,754,755,756,757,758,759,760,761,762,763,764,765],"M231 132h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M246 132h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M261 132h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M276 132h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M231 145h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M246 145h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M261 145h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M276 145h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M231 158h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M246 158h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M261 158h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M276 158h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M231 171h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M246 171h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M261 171h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M276 171h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M231 184h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M246 184h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M261 184h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M276 184h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M231 197h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M246 197h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M261 197h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M276 197h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M231 210h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M246 210h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M261 210h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M276 210h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M231 223h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M246 223h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M261 223h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M276 223h10a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-10a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z",[767,768,769,770,771,772,773,774],"M228 137L288 137","M228 150L288 150","M228 163L288 163","M228 176L288 176","M228 189L288 189","M228 202L288 202","M228 215L288 215","M228 228L288 228",{"id":650,"name":385,"role":776,"parts":777,"subcategory":98,"marker":778,"shapes":781},"Tightens the band against the barrel so the heat passes into it. A band removal tool helps free a band stuck to the barrel.",[681],[779,669,779,780],364,245,{"solid":782,"line":787},[783,784,785,786],"M143 236h18a1 1 0 0 1 1 1v7a1 1 0 0 1 -1 1h-18a1 1 0 0 1 -1 -1v-7a1 1 0 0 1 1 -1z","M249 236h18a1 1 0 0 1 1 1v7a1 1 0 0 1 -1 1h-18a1 1 0 0 1 -1 -1v-7a1 1 0 0 1 1 -1z","M355 236h18a1 1 0 0 1 1 1v7a1 1 0 0 1 -1 1h-18a1 1 0 0 1 -1 -1v-7a1 1 0 0 1 1 -1z","M461 236h18a1 1 0 0 1 1 1v7a1 1 0 0 1 -1 1h-18a1 1 0 0 1 -1 -1v-7a1 1 0 0 1 1 -1z",[788,789,790,791],"M138 241L166 241","M244 241L272 241","M350 241L378 241","M456 241L484 241",{"id":275,"name":400,"role":793,"parts":794,"marker":796,"shapes":799},"Sensors set into the barrel wall between the bands. The controller reads each one to switch its zone.",[795],"EC-HT-02",[797,684,797,798],311,98,{"solid":800,"line":804,"hidden":811},[801,802,803],"M201 98h8a2 2 0 0 1 2 2v14a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2v-14a2 2 0 0 1 2 -2z","M307 98h8a2 2 0 0 1 2 2v14a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2v-14a2 2 0 0 1 2 -2z","M413 98h8a2 2 0 0 1 2 2v14a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2v-14a2 2 0 0 1 2 -2z",[805,806,807,808,809,810],"M205 116L205 148","M211 104L223 104","M311 116L311 148","M317 104L329 104","M417 116L417 148","M423 104L435 104",[812,813,814],"M205 148L205 162","M311 148L311 162","M417 148L417 162",[816,823,828],{"partNumber":681,"name":817,"subcategory":28,"subcategoryName":29,"shortDescription":818,"inStock":613,"zone":30,"compatibleMachines":819},"Ceramic Heater Band","Full-enclosed ceramic heater band for injection molding machine barrel and nozzle heating zones.",[820,821,822],"Haitian MA Series","Haitian MA II Series","Haitian Jupiter Series",{"partNumber":795,"name":824,"subcategory":28,"subcategoryName":29,"shortDescription":825,"inStock":613,"zone":30,"compatibleMachines":826},"Thermocouple Sensor","Precision thermocouple temperature sensor for injection molding machine barrel temperature measurement.",[820,821,827],"Yizumi A5 Series",{"partNumber":829,"name":830,"subcategory":98,"subcategoryName":831,"shortDescription":832,"image":833,"inStock":613,"zone":30,"compatibleMachines":834},"MC-GMP-02","Barrel Heating Band Removal Tool","Maintenance Tools","Specialized tool for removing and installing heater bands on injection molding machine barrels.","\u002Fpart-images\u002FMC\u002FMC-GMP-02\u002Fe3443cd0-195f-44da-a410-8e85809efc0a.png",[820,835],"Various injection molding machines",1793548975061]