[{"data":1,"prerenderedAt":668},["ShallowReactive",2],{"catalog:meta":3,"guides:page:\u002Finjection-molding-machine-parts\u002Finjection-unit\u002Finjection-piston-rod:*":258,"guides:topics:injection-unit:\u002Finjection-molding-machine-parts\u002Finjection-unit\u002Finjection-piston-rod:path,title,short":528,"guides:page:\u002Finjection-molding-machine-parts\u002Finjection-unit:diagram":545,"diagram:id:guide-column":546,"catalog:parts::MC-GZ-01":659},{"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":500,"diagram":501,"extension":502,"faq":503,"item":516,"lastModified":517,"meta":518,"navigation":519,"order":21,"parts":520,"path":522,"seo":523,"seoTitle":524,"short":525,"stem":526,"__hash__":527},"guides\u002Finjection-molding-machine-parts\u002Finjection-unit\u002Finjection-piston-rod.md","Injection piston rod of an injection molding machine",{"type":262,"value":263,"toc":490},"minimark",[264,268,273,287,291,294,297,320,328,332,370,374,395,399,402,405,439,443,462,466,483],[265,266,267],"p",{},"The injection piston rod is the hardened, chrome-plated steel rod that joins the injection piston to the moving part of the injection unit and carries the injection force. In the drawing it is item 5: it runs from the injection cylinder (4) on the fixed plate to the moving plate, where the lock nut (6) holds it, and the moving plate carries the screw drive along the guide columns. Because the rod also slides through the cylinder's rod seals on every stroke, its surface condition decides whether the cylinder stays oil-tight.",[269,270,272],"h2",{"id":271},"where-the-piston-rod-sits","Where the piston rod sits",[265,274,275,276,281,282,286],{},"One end of the rod is fixed to the piston inside the ",[277,278,280],"a",{"href":279},"\u002Finjection-molding-machine-parts\u002Finjection-unit\u002Finjection-cylinder\u002F","injection cylinder",", usually with a piston nut. The rod leaves the cylinder through the gland, where the rod seals and wiper are fitted, and its other end is threaded into or through the moving plate and locked with a lock nut. On single in-line injection units the rod connects instead to the screw drive behind the barrel; the injection cylinder page compares the two designs, and the ",[277,283,285],{"href":284},"\u002Finjection-molding-machine-parts\u002Finjection-unit\u002F","injection unit guide"," shows how they fit in the cycle.",[269,288,290],{"id":289},"how-it-works","How it works",[265,292,293],{},"The rod transmits the force of the oil on the piston to the moving plate, and with it to the screw. During injection and hold it carries the full injection force; during decompression and back pressure it carries smaller loads in either direction. The load changes direction and size every cycle, which is why the threads and the lock nut must be tight and in good condition.",[265,295,296],{},"The rod is made to resist three things:",[298,299,300,308,314],"ul",{},[301,302,303,307],"li",{},[304,305,306],"strong",{},"Load:"," an alloy steel core, hardened and tempered, that carries the force without bending.",[301,309,310,313],{},[304,311,312],{},"Wear:"," a hard chrome surface that the rod seals and the guide ring in the gland slide on.",[301,315,316,319],{},[304,317,318],{},"Corrosion:"," the chrome layer protects the steel from rust when the rod is extended and exposed.",[265,321,322,323,327],{},"The ",[277,324,326],{"href":325},"\u002Fparts\u002Fmc-gz-01\u002F","injection piston rod"," we supply is 42CrMo alloy steel with a hard chrome plated surface, listed at HRC 55–60.",[269,329,331],{"id":330},"signs-of-wear-or-damage","Signs of wear or damage",[298,333,334,340,346,352,358,364],{},[301,335,336,339],{},[304,337,338],{},"Oil on the rod or dripping from the gland",", often the first sign of a damaged rod surface or worn rod seals.",[301,341,342,345],{},[304,343,344],{},"Scratches or score lines"," along the rod, usually from dirt carried past the wiper or from a worn guide ring letting the rod touch metal.",[301,347,348,351],{},[304,349,350],{},"Pitting, rust spots or flaking chrome",", often after a long stop in a damp place with the rod extended, or from water in the oil.",[301,353,354,357],{},[304,355,356],{},"A bent rod",": uneven seal wear on one side, a rod that does not run true, or a cylinder that binds.",[301,359,360,363],{},[304,361,362],{},"A loose rod end",": knocking at the start of injection or when the movement reverses, or a lock nut that has moved.",[301,365,366,369],{},[304,367,368],{},"Damaged threads"," at either end.",[269,371,373],{"id":372},"inspecting-the-piston-rod","Inspecting the piston rod",[375,376,377,380,383,386,389,392],"ol",{},[301,378,379],{},"Release all hydraulic pressure, lock off the machine and clean the rod.",[301,381,382],{},"Look along the full length of the exposed rod under good light. Run a fingernail across any mark: if it catches, the mark will cut seals.",[301,384,385],{},"Check the lock nut and the rod end for movement, and look for fretting marks around the nut.",[301,387,388],{},"With the rod removed, measure its diameter at several points along its length and around it with a micrometer, and compare with the original size and with the gland.",[301,390,391],{},"Check straightness by supporting the rod near its ends, for example on V-blocks, and turning it under a dial indicator. Compare the result with the limits in the machine manual or drawing.",[301,393,394],{},"Check the threads at both ends.",[269,396,398],{"id":397},"repair-or-replacement","Repair or replacement",[265,400,401],{},"Light surface damage on a straight rod can sometimes be repaired by grinding off the chrome, re-chroming and grinding back to the original diameter. It is worth considering on large rods; on smaller ones a new rod is often the simpler choice. A bent rod, cracked threads or deep scoring mean replacement.",[265,403,404],{},"When you fit a new rod:",[375,406,407,420,423,436],{},[301,408,409,410,414,415,419],{},"Fit new rod seals, wiper and guide rings at the same time; see ",[277,411,413],{"href":412},"\u002Finjection-molding-machine-parts\u002Fclamp-cylinder\u002Frod-seals\u002F","rod seals"," and ",[277,416,418],{"href":417},"\u002Finjection-molding-machine-parts\u002Fclamp-cylinder\u002Fcylinder-seal-replacement\u002F","cylinder seal replacement",".",[301,421,422],{},"Protect the chrome surface while handling it, and cover the threads when sliding it through the seals.",[301,424,425,426,430,431,435],{},"Fit the piston and its nut, and the lock nut at the moving plate, tightened to the torque in the machine manual. The ",[277,427,429],{"href":428},"\u002Finjection-molding-machine-parts\u002Fclamp-cylinder\u002Fpiston-rod-nut\u002F","piston rod nut"," page covers the nut at the piston, and the ",[277,432,434],{"href":433},"\u002Fparts\u002Fmc-gz-04\u002F","lock nut"," we supply is made for guide columns, shafts and piston rods.",[301,437,438],{},"Check that the moving plate runs freely on the guide columns before applying pressure, so the new rod is not bent by a misaligned plate.",[269,440,442],{"id":441},"making-the-rod-last","Making the rod last",[298,444,445,448,456,459],{},[301,446,447],{},"Keep the hydraulic oil clean and the wiper seal in good condition.",[301,449,450,451,455],{},"Replace worn ",[277,452,454],{"href":453},"\u002Finjection-molding-machine-parts\u002Finjection-unit\u002Fguide-columns\u002F","guide column bushings"," before they let the plate load the rod sideways.",[301,457,458],{},"Wipe the exposed rod and protect it during long stops.",[301,460,461],{},"Check the lock nut at planned maintenance.",[269,463,465],{"id":464},"what-to-send-for-a-replacement-quote","What to send for a replacement quote",[375,467,468,471,474,477,480],{},[301,469,470],{},"The machine brand and model, and the injection unit size.",[301,472,473],{},"The rod diameter and overall length.",[301,475,476],{},"The thread size and length at both ends, and the shape of the piston end.",[301,478,479],{},"The cylinder bore, and whether the unit has one or two injection cylinders.",[301,481,482],{},"Photos of the rod and its ends, and the OEM part number or a drawing if you have one.",[265,484,485,489],{},[277,486,488],{"href":487},"\u002Frequest-quote\u002F","Request a quote"," with these details.",{"title":491,"searchDepth":21,"depth":21,"links":492},"",[493,494,495,496,497,498,499],{"id":271,"depth":21,"text":272},{"id":289,"depth":21,"text":290},{"id":330,"depth":21,"text":331},{"id":372,"depth":21,"text":373},{"id":397,"depth":21,"text":398},{"id":441,"depth":21,"text":442},{"id":464,"depth":21,"text":465},"What the injection piston rod of an injection molding machine does, how its chrome surface and threads wear, how to inspect it, and what to send for a quote.","guide-column","md",[504,507,510,513],{"question":505,"answer":506},"What does the injection piston rod do?","It connects the piston inside the injection cylinder to the part it moves, on many machines the moving plate that carries the screw drive, and carries the full injection force. Its chrome-plated surface also runs through the cylinder's rod seals.",{"question":508,"answer":509},"Why is the injection piston rod chrome-plated?","Hard chrome gives a smooth, hard and corrosion-resistant surface for the rod seals to run on. Scratches, pitting or flaking chrome let oil leak past the seals and wear them quickly.",{"question":511,"answer":512},"Can a scored piston rod be repaired?","Light damage can sometimes be repaired by grinding and re-chroming the rod to its original diameter, if the core is straight and undamaged. A bent rod, a damaged thread or deep scoring usually means a new rod.",{"question":514,"answer":515},"Should I replace the rod seals when I replace the piston rod?","Yes. Old seals that ran on a damaged rod are worn and can carry dirt, so fit new rod seals, wiper and guide rings with a new rod.","piston-rod","2026-11-01",{},true,[521],"MC-GZ-01","\u002Finjection-molding-machine-parts\u002Finjection-unit\u002Finjection-piston-rod",{"title":260,"description":500},"Injection Piston Rod: Function, Damage and Replacement","Injection piston rod","injection-molding-machine-parts\u002Finjection-unit\u002Finjection-piston-rod","Q8mxZZDqZVbiGrbQWBd7APkDPh7oF_gcdlf_3VQYGv0",[529,533,537,541],{"path":530,"title":531,"short":532},"\u002Finjection-molding-machine-parts\u002Finjection-unit\u002Finjection-cylinder","Injection cylinder of an injection molding machine","Injection cylinder",{"path":534,"title":535,"short":536},"\u002Finjection-molding-machine-parts\u002Finjection-unit\u002Fplasticizing-motor","Plasticizing motor: the hydraulic screw drive motor","Plasticizing motor",{"path":538,"title":539,"short":540},"\u002Finjection-molding-machine-parts\u002Finjection-unit\u002Fguide-columns","Guide columns and guide bushings of the injection unit","Guide columns and bushings",{"path":542,"title":543,"short":544},"\u002Finjection-molding-machine-parts\u002Finjection-unit\u002Flinear-guide","Linear guide rail and carriage of the injection unit","Linear guide",{"diagram":239},{"diagram":547},{"title":548,"description":549,"base":550,"items":555},"Parts of the guide columns","Line drawing of two guide columns fixed between two plates, with a moving plate sliding on them on bushings and driven by a hydraulic cylinder and piston rod, numbered.",{"solid":551},[552,553,554],"M112 70h30a2 2 0 0 1 2 2v216a2 2 0 0 1 -2 2h-30a2 2 0 0 1 -2 -2v-216a2 2 0 0 1 2 -2z","M302 84h32a2 2 0 0 1 2 2v188a2 2 0 0 1 -2 2h-32a2 2 0 0 1 -2 -2v-188a2 2 0 0 1 2 -2z","M502 80h26a2 2 0 0 1 2 2v196a2 2 0 0 1 -2 2h-26a2 2 0 0 1 -2 -2v-196a2 2 0 0 1 2 -2z",[556,570,595,616,632,644],{"id":557,"name":558,"role":559,"parts":560,"marker":562,"shapes":566},"column","Guide column","Hardened, ground steel shaft fixed between the plates. The moving plate slides along it and stays square as it travels.",[561],"MC-GZ-07",[563,564,563,565],420,24,104,{"solid":567},[568,569],"M82 104h476a2 2 0 0 1 2 2v12a2 2 0 0 1 -2 2h-476a2 2 0 0 1 -2 -2v-12a2 2 0 0 1 2 -2z","M82 240h476a2 2 0 0 1 2 2v12a2 2 0 0 1 -2 2h-476a2 2 0 0 1 -2 -2v-12a2 2 0 0 1 2 -2z",{"id":571,"name":572,"role":573,"parts":574,"marker":577,"shapes":580},"nuts","Guide column nuts","Lock the guide columns into the fixed plates. Plain, castellated and flanged types suit different plate designs.",[575,576],"MC-GZ-02","MC-GZ-03",[578,564,578,579],99,98,{"solid":581,"line":588},[582,583,584,585,586,587],"M90 98h18a2 2 0 0 1 2 2v24a2 2 0 0 1 -2 2h-18a2 2 0 0 1 -2 -2v-24a2 2 0 0 1 2 -2z","M531 94h4a1 1 0 0 1 1 1v34a1 1 0 0 1 -1 1h-4a1 1 0 0 1 -1 -1v-34a1 1 0 0 1 1 -1z","M538 99h14a2 2 0 0 1 2 2v22a2 2 0 0 1 -2 2h-14a2 2 0 0 1 -2 -2v-22a2 2 0 0 1 2 -2z","M90 234h18a2 2 0 0 1 2 2v24a2 2 0 0 1 -2 2h-18a2 2 0 0 1 -2 -2v-24a2 2 0 0 1 2 -2z","M531 230h4a1 1 0 0 1 1 1v34a1 1 0 0 1 -1 1h-4a1 1 0 0 1 -1 -1v-34a1 1 0 0 1 1 -1z","M538 235h14a2 2 0 0 1 2 2v22a2 2 0 0 1 -2 2h-14a2 2 0 0 1 -2 -2v-22a2 2 0 0 1 2 -2z",[589,590,591,592,593,594],"M88 106L110 106","M88 118L110 118","M536 112L554 112","M88 242L110 242","M88 254L110 254","M536 248L554 248",{"id":596,"name":597,"role":598,"parts":599,"marker":603,"shapes":606},"bushings","Guide column bushings","Bronze or self-lubricating sleeves in the moving plate. They let it slide on the columns and take the wear instead of the columns. Small, medium and large sizes suit different machines.",[600,601,602],"MC-GZ-5","MC-GZ-6","MC-GZ-10",[604,564,604,605],297,100,{"solid":607},[608,609,610,611,612,613,614,615],"M295 100h4a1 1 0 0 1 1 1v22a1 1 0 0 1 -1 1h-4a1 1 0 0 1 -1 -1v-22a1 1 0 0 1 1 -1z","M337 100h4a1 1 0 0 1 1 1v22a1 1 0 0 1 -1 1h-4a1 1 0 0 1 -1 -1v-22a1 1 0 0 1 1 -1z","M300 100h36v4h-36z","M300 120h36v4h-36z","M295 236h4a1 1 0 0 1 1 1v22a1 1 0 0 1 -1 1h-4a1 1 0 0 1 -1 -1v-22a1 1 0 0 1 1 -1z","M337 236h4a1 1 0 0 1 1 1v22a1 1 0 0 1 -1 1h-4a1 1 0 0 1 -1 -1v-22a1 1 0 0 1 1 -1z","M300 236h36v4h-36z","M300 256h36v4h-36z",{"id":617,"name":532,"role":618,"parts":619,"marker":621,"shapes":625},"cylinder","Hydraulic cylinder mounted on the fixed plate. Its piston moves the moving plate, and with it the screw, to inject the melt into the mold.",[620],"MC-BC-06",[622,623,622,624],197,336,204,{"solid":626,"hidden":630},[627,628,629],"M147 156h100a3 3 0 0 1 3 3v42a3 3 0 0 1 -3 3h-100a3 3 0 0 1 -3 -3v-42a3 3 0 0 1 3 -3z","M160 146h10v10h-10z","M228 146h10v10h-10z",[631],"M200 158h10v44h-10z",{"id":516,"name":525,"role":633,"parts":634,"marker":635,"shapes":638},"Hardened, chrome-plated rod that joins the injection piston to the moving plate and carries the injection force.",[521],[636,623,636,637],270,188,{"solid":639,"hidden":641},[640],"M252 172h98a2 2 0 0 1 2 2v12a2 2 0 0 1 -2 2h-98a2 2 0 0 1 -2 -2v-12a2 2 0 0 1 2 -2z",[642,643],"M210 172L250 172","M210 188L250 188",{"id":645,"name":646,"role":647,"parts":648,"marker":650,"shapes":653},"jam-nut","Lock nut","Locking jam nut that holds the piston rod in the moving plate and stops it working loose under the repeated injection loads.",[649],"MC-GZ-04",[651,623,651,652],344,194,{"solid":654,"line":656},[655],"M338 166h12a2 2 0 0 1 2 2v24a2 2 0 0 1 -2 2h-12a2 2 0 0 1 -2 -2v-24a2 2 0 0 1 2 -2z",[657,658],"M336 175L352 175","M336 185L352 185",[660],{"partNumber":521,"name":661,"subcategory":81,"subcategoryName":662,"shortDescription":663,"image":664,"inStock":519,"zone":239,"compatibleMachines":665},"Injection Piston Rod","Shafts & Rods","Injection unit piston rod for injection molding machine injection cylinder.","\u002Fpart-images\u002FMC\u002FMC-GZ-01\u002Fpistion.png",[666,667],"Haitian MA Series","Haitian MA II Series",1793548982195]