[{"data":1,"prerenderedAt":835},["ShallowReactive",2],{"catalog:meta":3,"guides:page:\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fnozzle:*":258,"guides:topics:barrel-screw:\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fnozzle:path,title,short":601,"guides:page:\u002Finjection-molding-machine-parts\u002Fbarrel-screw:diagram":653,"diagram:id:injection-unit":654,"catalog:parts::MC-BC-07":827},{"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":573,"diagram":574,"extension":575,"faq":576,"item":589,"lastModified":590,"meta":591,"navigation":592,"order":70,"parts":593,"path":595,"seo":596,"seoTitle":597,"short":598,"stem":599,"__hash__":600},"guides\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fnozzle.md","Injection molding machine nozzle: tip, size and design",{"type":262,"value":263,"toc":562},"minimark",[264,268,277,282,314,318,321,335,338,342,345,348,352,378,382,468,472,492,500,504,507,528,532,549],[265,266,267],"p",{},"The injection molding machine nozzle is the heated, threaded steel part on the front of the barrel that carries the melt into the mold. It screws into the barrel head (front flange), and on every shot its rounded tip presses against the mold's sprue bushing to form a seal. The tip radius and the orifice diameter must suit the sprue bushing, and the nozzle design must suit the material, or the nozzle leaks, drools or leaves the sprue stuck in the mold.",[265,269,270,271,276],{},"The nozzle is item 1 in the drawing. For how it fits with the barrel and screw, see the ",[272,273,275],"a",{"href":274},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002F","barrel and screw guide",".",[278,279,281],"h2",{"id":280},"parts-of-an-injection-molding-machine-nozzle","Parts of an injection molding machine nozzle",[283,284,285,302,308],"ul",{},[286,287,288,292,293,297,298,276],"li",{},[289,290,291],"strong",{},"Nozzle body."," Screws into the ",[272,294,296],{"href":295},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fbarrel-head\u002F","barrel head"," and carries the melt channel. It has its own heater, usually a small band, and its own thermocouple, controlled as a separate zone; see the ",[272,299,301],{"href":300},"\u002Finjection-molding-machine-parts\u002Fheaters\u002Fnozzle-heater\u002F","nozzle heater guide",[286,303,304,307],{},[289,305,306],{},"Nozzle tip."," The front end, with a spherical radius that seats in the sprue bushing and the orifice the melt leaves through. On many nozzles the tip is a separate part screwed into the body, so it can be replaced on its own.",[286,309,310,313],{},[289,311,312],{},"Melt channel."," The bore through the body and tip. It should be smooth, with no steps or dead spots where melt can hang up and degrade.",[278,315,317],{"id":316},"how-the-nozzle-seals-against-the-sprue-bushing","How the nozzle seals against the sprue bushing",[265,319,320],{},"When the injection unit moves forward, the carriage cylinders (or the carriage drive, on electric machines) press the nozzle tip into the spherical seat of the sprue bushing with the nozzle contact force. Two dimensions decide whether that contact seals:",[283,322,323,329],{},[286,324,325,328],{},[289,326,327],{},"Radius."," The nozzle radius must be the same as or slightly smaller than the sprue bushing radius. If it is larger, the nozzle touches only at the outer edge and melt leaks into the gap, where it freezes and builds up.",[286,330,331,334],{},[289,332,333],{},"Orifice."," The nozzle orifice must be slightly smaller than the sprue bushing opening. If it is larger, the step between them holds the sprue in the bushing when the mold opens.",[265,336,337],{},"The nozzle must also be centered on the sprue bushing. To check the contact, put a thin coat of marking paste on the nozzle tip, bring it forward against the mold, and look at the print: it should be an even ring around the orifice.",[278,339,341],{"id":340},"nozzle-tip-size-radius-and-orifice-diameter","Nozzle tip size: radius and orifice diameter",[265,343,344],{},"The radius and orifice are set by the mold: they come from the sprue bushing, which is shown on the mold drawing or can be measured with radius gauges and pin gauges. Nozzle tips are made in a range of standard radii and orifice sizes, so when a mold moves to another machine, change the tip rather than accept a mismatch.",[265,346,347],{},"A larger orifice lowers the pressure loss and the shear in the nozzle but makes drooling more likely. A smaller orifice drools less but raises the pressure loss and freezes off sooner. Use the size the mold maker specifies, adjusted only within what the sprue bushing allows.",[278,349,351],{"id":350},"nozzle-tip-material","Nozzle tip material",[283,353,354,360,366,372],{},[286,355,356,359],{},[289,357,358],{},"Hardened tool steel"," for most materials.",[286,361,362,365],{},[289,363,364],{},"Wear-resistant steels or hard coatings"," for glass-filled and mineral-filled plastics, which erode the orifice.",[286,367,368,371],{},[289,369,370],{},"Corrosion-resistant steels"," for plastics that release corrosive gases.",[286,373,374,377],{},[289,375,376],{},"Copper-alloy tips",", which conduct heat better and keep the melt at the tip from freezing, but are softer and wear faster.",[278,379,381],{"id":380},"nozzle-designs","Nozzle designs",[383,384,385,401],"table",{},[386,387,388],"thead",{},[389,390,391,395,398],"tr",{},[392,393,394],"th",{},"Design",[392,396,397],{},"What it is",[392,399,400],{},"Used for",[402,403,404,416,427,438,453],"tbody",{},[389,405,406,410,413],{},[407,408,409],"td",{},"Open (standard) nozzle",[407,411,412],{},"Open bore with no valve",[407,414,415],{},"Most materials and molds",[389,417,418,421,424],{},[407,419,420],{},"Extended nozzle",[407,422,423],{},"A longer body that reaches a sprue bushing set deep in the mold, heated along its length",[407,425,426],{},"Molds with a recessed sprue bushing",[389,428,429,432,435],{},[407,430,431],{},"Reverse-taper nozzle",[407,433,434],{},"The bore narrows a short way inside the tip and widens again toward the orifice, so the sprue breaks off at the narrow point",[407,436,437],{},"Low-viscosity materials that drool, such as nylon",[389,439,440,443,446],{},[407,441,442],{},"Shut-off nozzle",[407,444,445],{},"A valve closes the bore between shots",[407,447,448,449],{},"Drool-prone materials; see the ",[272,450,452],{"href":451},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fshut-off-nozzle\u002F","shut-off nozzle guide",[389,454,455,458,461],{},[407,456,457],{},"Filter nozzle",[407,459,460],{},"A slotted insert or screen catches contamination",[407,462,463,464],{},"Regrind and recycled material; see the ",[272,465,467],{"href":466},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fnozzle-filter\u002F","nozzle filter guide",[278,469,471],{"id":470},"signs-of-nozzle-wear-or-trouble","Signs of nozzle wear or trouble",[283,473,474,477,480,483,486,489],{},[286,475,476],{},"Drool or strings of plastic between shots.",[286,478,479],{},"Plastic leaking around the tip at the sprue bushing.",[286,481,482],{},"Cold slugs in the part, or a blocked nozzle.",[286,484,485],{},"Dents, pitting or a flattened ring on the tip radius.",[286,487,488],{},"An orifice that has worn larger than its original size.",[286,490,491],{},"Plastic leaking at the thread, or a damaged thread.",[265,493,494,495,499],{},"Many of these come from settings rather than wear. Our article on ",[272,496,498],{"href":497},"\u002Fblog\u002Finjection-nozzle-problems-troubleshooting\u002F","nozzle drooling, stringing and blockages"," goes through the causes and fixes.",[278,501,503],{"id":502},"removing-and-fitting-a-nozzle","Removing and fitting a nozzle",[265,505,506],{},"Never stand in front of the nozzle while a barrel with plastic in it is heating: gas trapped behind a frozen nozzle can blow molten plastic out.",[508,509,510,513,516,519,522,525],"ol",{},[286,511,512],{},"Retract the injection unit and keep the nozzle and barrel at processing temperature.",[286,514,515],{},"Remove the nozzle heater and thermocouple as the machine manual describes.",[286,517,518],{},"Unscrew the nozzle hot, with a wrench on its flats, wearing heat-resistant gloves and a face shield.",[286,520,521],{},"Clean the thread and the seat in the barrel head, and the nozzle bore, with brass tools.",[286,523,524],{},"Coat the new nozzle's thread with high-temperature anti-seize and tighten it to the torque in the manual.",[286,526,527],{},"Refit the heater and thermocouple, heat to temperature, and check the contact with the sprue bushing.",[278,529,531],{"id":530},"what-to-send-for-a-replacement-nozzle","What to send for a replacement nozzle",[508,533,534,537,540,543,546],{},[286,535,536],{},"The machine brand and model.",[286,538,539],{},"The nozzle thread and the overall length.",[286,541,542],{},"The tip radius and orifice, or the sprue bushing radius and opening of the mold.",[286,544,545],{},"The design you need (open, extended, reverse taper, shut-off or filter) and the materials you run.",[286,547,548],{},"Photos of the old nozzle and, if you have it, the OEM part number.",[265,550,551,552,556,557,561],{},"The ",[272,553,555],{"href":554},"\u002Fparts\u002Fmc-bc-07\u002F","injection nozzles"," we supply for Haitian MA II, MA IIS and MA III machines come with M30×2, M39×2, M45×4 or M60×4 threads in several lengths. ",[272,558,560],{"href":559},"\u002Frequest-quote\u002F","Request a quote"," with the details above.",{"title":563,"searchDepth":21,"depth":21,"links":564},"",[565,566,567,568,569,570,571,572],{"id":280,"depth":21,"text":281},{"id":316,"depth":21,"text":317},{"id":340,"depth":21,"text":341},{"id":350,"depth":21,"text":351},{"id":380,"depth":21,"text":381},{"id":470,"depth":21,"text":471},{"id":502,"depth":21,"text":503},{"id":530,"depth":21,"text":531},"How the injection molding machine nozzle seals against the mold, nozzle tip radius and orifice size, tip materials, nozzle designs, wear signs and replacement.",null,"md",[577,580,583,586],{"question":578,"answer":579},"What size should the injection nozzle orifice be?","The nozzle orifice should be slightly smaller than the opening of the mold's sprue bushing. A larger orifice leaves a lip that holds the sprue in the bushing, so it does not release when the mold opens.",{"question":581,"answer":582},"Should the nozzle radius match the sprue bushing radius?","The nozzle tip radius should be the same as or slightly smaller than the sprue bushing radius, never larger. A larger radius touches only at the outer edge, so melt leaks into the gap between the nozzle and the bushing.",{"question":584,"answer":585},"What material are injection nozzle tips made of?","Most nozzle tips are hardened tool steel. Wear-resistant steels are used for filled materials, corrosion-resistant steels for corrosive ones, and copper-alloy tips where better heat conduction to the tip is needed.",{"question":587,"answer":588},"Why does plastic leak between the nozzle and the mold?","Usually a mismatch between the nozzle and sprue bushing radius or orifice, a nozzle that is not centered on the sprue bushing, too little nozzle contact force, or a damaged tip or bushing seat.","nozzle","2026-11-01",{},true,[594],"MC-BC-07","\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fnozzle",{"title":260,"description":573},"Injection Molding Machine Nozzle: Tip, Size and Design","Nozzle","injection-molding-machine-parts\u002Fbarrel-screw\u002Fnozzle","M1nJ4QHeawR9Gh_KljSPGoHLIiLMgXqvpMQCZnsJcBU",[602,606,610,614,618,621,625,629,633,637,641,645,649],{"path":603,"title":604,"short":605},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fscrew","Injection molding screw: parts, zones and types","Screw",{"path":607,"title":608,"short":609},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fbarrel","Injection molding machine barrel: construction, zones and wear","Barrel",{"path":611,"title":612,"short":613},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fcheck-ring","Check ring (non-return valve) of an injection molding screw","Check ring",{"path":615,"title":616,"short":617},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fscrew-tip","Screw tip of an injection molding machine: types and removal","Screw tip",{"path":619,"title":620,"short":442},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fshut-off-nozzle","Shut-off nozzle for injection molding: types and uses",{"path":622,"title":623,"short":624},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fnozzle-filter","Injection molding nozzle filter: types, use and cleaning","Nozzle filter",{"path":626,"title":627,"short":628},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fbarrel-head","Barrel head (front flange) of an injection molding machine","Barrel head",{"path":630,"title":631,"short":632},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fhopper-and-feed-throat","Hopper and feed throat of an injection molding machine","Hopper and feed throat",{"path":634,"title":635,"short":636},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fbimetallic-barrel","Bimetallic barrel and screw for injection molding machines","Bimetallic barrel",{"path":638,"title":639,"short":640},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fl-d-ratio","Screw L\u002FD ratio and compression ratio in injection molding","L\u002FD ratio",{"path":642,"title":643,"short":644},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fback-pressure","Back pressure in injection molding: what it does and how to set it","Back pressure",{"path":646,"title":647,"short":648},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fshot-size","Shot size calculation for injection molding machines","Shot size calculation",{"path":650,"title":651,"short":652},"\u002Finjection-molding-machine-parts\u002Fbarrel-screw\u002Fremoving-the-screw","How to remove the screw from an injection molding machine","Removing the screw",{"diagram":239},{"diagram":655},{"title":656,"description":657,"base":658,"labels":669,"items":680},"Parts of the injection unit","Section through an injection unit: nozzle, barrel front flange, barrel, screw with its feed, compression and metering zones, screw tip and check ring, heater bands, hopper throat and injection cylinder, numbered.",{"solid":659,"line":661},[660],"M470 118h14v104h-14z",[662,663,664,665,666,667,668],"M484 124L520 124","M484 216L520 216","M142 212L466 212","M142 207L142 217","M240 207L240 217","M340 207L340 217","M466 207L466 217",[670,674,677],{"x":671,"y":672,"text":673},191,228,"METERING",{"x":675,"y":672,"text":676},290,"COMPRESSION",{"x":678,"y":672,"text":679},403,"FEED",[681,694,711,726,757,770,794,807],{"id":589,"name":598,"role":682,"parts":683,"marker":684,"shapes":688},"Screws into the front of the barrel and seals against the mold’s sprue bushing. The melt passes through it on every shot.",[594],[685,686,685,687],52,24,156,{"solid":689,"hidden":692},[690,691],"M32 166L50 158L50 182L32 174Z","M52 156h36a2 2 0 0 1 2 2v24a2 2 0 0 1 -2 2h-36a2 2 0 0 1 -2 -2v-24a2 2 0 0 1 2 -2z",[693],"M34 170L88 170",{"id":695,"name":696,"role":697,"parts":698,"marker":700,"shapes":703},"front-flange","Barrel front flange","Also called the front head or end cap. It closes the front of the barrel and holds the nozzle.",[699],"MC-BC-08",[701,686,701,702],98,144,{"solid":704,"line":706,"hidden":709},[705],"M90 144h16a2 2 0 0 1 2 2v48a2 2 0 0 1 -2 2h-16a2 2 0 0 1 -2 -2v-48a2 2 0 0 1 2 -2z",[707,708],"M95.5 151a2.5 2.5 0 1 0 5 0a2.5 2.5 0 1 0 -5 0z","M95.5 189a2.5 2.5 0 1 0 5 0a2.5 2.5 0 1 0 -5 0z",[710],"M90 170L108 170",{"id":712,"name":609,"role":713,"parts":714,"marker":717,"shapes":720},"barrel","Thick steel tube the screw turns in. Bimetallic barrels have a hard alloy lining that resists wear from glass-filled and abrasive plastics.",[715,716],"MC-BC-01","MC-SB-01",[718,686,718,719],188,146,{"solid":721,"line":723},[722],"M108 146h362v48h-362z",[724,725],"M108 156L470 156","M108 184L470 184",{"id":727,"name":605,"role":728,"parts":729,"marker":731,"shapes":736},"screw","Melts and meters the plastic. Its flights are deep in the feed zone, get shallower through the compression zone and stay shallow in the metering zone.",[730],"MC-BC-02",[732,733,734,735],230,336,232,178,{"solid":737,"line":740},[738,739],"M142 162L240 162L340 166L486 166L486 174L340 174L240 178L142 178Z","M488 162h30a2 2 0 0 1 2 2v12a2 2 0 0 1 -2 2h-30a2 2 0 0 1 -2 -2v-12a2 2 0 0 1 2 -2z",[741,742,743,744,745,746,747,748,749,750,751,752,753,754,755,756],"M148 157L156 183","M168 157L176 183","M188 157L196 183","M208 157L216 183","M228 157L236 183","M248 157L256 183","M268 157L276 183","M288 157L296 183","M308 157L316 183","M328 157L336 183","M348 157L356 183","M368 157L376 183","M388 157L396 183","M408 157L416 183","M428 157L436 183","M448 157L456 183",{"id":758,"name":759,"role":760,"marker":761,"shapes":765},"screw-tip","Screw tip and check ring","A non-return valve on the front of the screw. The ring lets melt pass while the screw turns and seals when it injects, so the shot does not flow back.",[762,733,763,764],122,128,183,{"solid":766},[767,768,769],"M110 170L122 163L132 163L132 177L122 177Z","M125 157h8a1 1 0 0 1 1 1v24a1 1 0 0 1 -1 1h-8a1 1 0 0 1 -1 -1v-24a1 1 0 0 1 1 -1z","M134 159h8v22h-8z",{"id":771,"name":772,"role":773,"subcategory":28,"marker":774,"shapes":778},"heater-bands","Heater bands","Bands around the barrel and nozzle that heat the plastic to its processing temperature, each zone controlled by its own thermocouple.",[775,686,776,777],330,313,138,{"solid":779},[780,781,782,783,784,785,786,787,788,789,790,791,792,793],"M152 138h22a2 2 0 0 1 2 2v4a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-4a2 2 0 0 1 2 -2z","M152 194h22a2 2 0 0 1 2 2v4a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-4a2 2 0 0 1 2 -2z","M202 138h22a2 2 0 0 1 2 2v4a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-4a2 2 0 0 1 2 -2z","M202 194h22a2 2 0 0 1 2 2v4a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-4a2 2 0 0 1 2 -2z","M252 138h22a2 2 0 0 1 2 2v4a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-4a2 2 0 0 1 2 -2z","M252 194h22a2 2 0 0 1 2 2v4a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-4a2 2 0 0 1 2 -2z","M302 138h22a2 2 0 0 1 2 2v4a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-4a2 2 0 0 1 2 -2z","M302 194h22a2 2 0 0 1 2 2v4a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-4a2 2 0 0 1 2 -2z","M352 138h22a2 2 0 0 1 2 2v4a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-4a2 2 0 0 1 2 -2z","M352 194h22a2 2 0 0 1 2 2v4a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-4a2 2 0 0 1 2 -2z","M402 138h22a2 2 0 0 1 2 2v4a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-4a2 2 0 0 1 2 -2z","M402 194h22a2 2 0 0 1 2 2v4a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-4a2 2 0 0 1 2 -2z","M58 150h20a2 2 0 0 1 2 2v2a2 2 0 0 1 -2 2h-20a2 2 0 0 1 -2 -2v-2a2 2 0 0 1 2 -2z","M58 184h20a2 2 0 0 1 2 2v2a2 2 0 0 1 -2 2h-20a2 2 0 0 1 -2 -2v-2a2 2 0 0 1 2 -2z",{"id":795,"name":632,"role":796,"marker":797,"shapes":800},"feed-throat","Pellets drop from the hopper through the feed throat into the screw. The throat is usually water-cooled so the pellets do not melt and stick before the screw.",[798,686,798,799],446,62,{"solid":801,"hidden":804},[802,803],"M410 62L482 62L462 110L430 110Z","M434 110h24v36h-24z",[805,806],"M434 146L434 156","M458 146L458 156",{"id":808,"name":809,"role":810,"parts":811,"subcategory":72,"marker":813,"shapes":817},"injection-cylinder","Injection cylinder","Hydraulic cylinder that drives the screw forward to inject and holds pressure while the part sets. Its seals are wear parts.",[812],"MC-BC-06",[814,686,815,816],556,560,132,{"solid":818,"hidden":824},[819,820,821,822,823],"M520 128h8v84h-8z","M528 132h62v76h-62z","M590 128h8v84h-8z","M540 124h10v8h-10z","M570 124h10v8h-10z",[825,826],"M548 136h10v68h-10z","M528 170L548 170",[828],{"partNumber":594,"name":829,"subcategory":67,"subcategoryName":68,"shortDescription":830,"inStock":592,"zone":232,"compatibleMachines":831},"Injection Nozzle","Precision-machined injection nozzle for plastic injection molding machines.",[832,833,834],"Haitian MA II Series","Haitian MA IIS Series","Haitian MA III Series",1793548980981]