[{"data":1,"prerenderedAt":456},["ShallowReactive",2],{"catalog:meta":3,"catalog:part:hy-au-02":258,"diagram:part:hy-au-02":327,"guides:links:parts:HY-AU-02":438,"blog:related:3:accumulator,accumulators,bladder accumulator,hydraulic accumulator":443},{"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,{"part":259,"category":295,"zone":301,"related":302},{"partNumber":260,"name":261,"slug":262,"category":36,"subcategory":43,"categoryName":37,"subcategoryName":44,"shortDescription":263,"description":264,"specifications":265,"variants":278,"compatibleMachines":279,"images":283,"tags":286,"relatedParts":290,"inStock":293,"featured":294},"HY-AU-02","Hydraulic Accumulator","hydraulic-accumulator","Bladder-type hydraulic accumulator for injection molding machine high-speed injection circuits.","Nitrogen-charged bladder-type hydraulic accumulator for injection molding machine high-speed injection and back-pressure circuits. Provides rapid oil release for fast injection and absorbs pressure spikes.",[266,269,272,275],{"name":267,"value":268},"Type","Bladder Accumulator",{"name":270,"value":271},"Max Pressure","31.5 MPa",{"name":273,"value":274},"Volume","1–40 L",{"name":276,"value":277},"Gas","Nitrogen (N₂)",[],[280,281,282],"Haitian MA Series","Haitian Jupiter Series","Chen Hsong JM Series",[284,285],"\u002Fpart-images\u002FHY\u002FHY-AU-02\u002FHY-AU-02.jpg","\u002Fpart-images\u002FHY\u002FHY-AU-02\u002F4a6deea39a3f41b57e9e4eac97c328ed.jpg",[287,288,289],"accumulator","bladder accumulator","hydraulic accumulator",[291,292],"HY-PW-06","HY-CV-02",true,false,{"id":36,"name":37,"slug":38,"description":39,"partCount":40,"subcategories":296},[297,298,299,300],{"id":43,"name":44,"slug":45,"partCount":26},{"id":47,"name":48,"slug":49,"partCount":50},{"id":52,"name":53,"slug":54,"partCount":26},{"id":56,"name":57,"slug":58,"partCount":50},{"id":243,"number":244,"name":245,"role":246},[303,308,314,321],{"partNumber":291,"name":304,"subcategory":56,"subcategoryName":57,"shortDescription":305,"image":306,"inStock":293,"zone":243,"compatibleMachines":307},"Hydraulic Vane Pump","High-performance hydraulic vane pump for injection molding machine hydraulic power units.","\u002Fpart-images\u002FHY\u002FHY-PW-06\u002FVickers vane pump\u002F20V,25V,35.jpg",[280,281,282],{"partNumber":292,"name":309,"subcategory":47,"subcategoryName":48,"shortDescription":310,"image":311,"inStock":293,"zone":243,"compatibleMachines":312},"Directional Control Valve","Solenoid-operated directional control valve for injection molding machine hydraulic circuits.","\u002Fpart-images\u002FHY\u002FHY-CV-02\u002Feeaecc6c53657d38d48089a1344d4bce.jpg",[280,281,313,282],"Yizumi A5 Series",{"partNumber":315,"name":316,"subcategory":47,"subcategoryName":48,"shortDescription":317,"image":318,"inStock":293,"zone":243,"compatibleMachines":319},"HY-CV-04","Proportional Pressure\u002FFlow Valve","Proportional solenoid valve for precise pressure and flow control in injection molding machines.","\u002Fpart-images\u002FHY\u002FHY-CV-04\u002F06e2c777-c0f3-4739-8046-c59de63bbd4e.png",[280,320,313],"Haitian MA II Series",{"partNumber":322,"name":323,"subcategory":47,"subcategoryName":48,"shortDescription":324,"image":325,"inStock":293,"zone":243,"compatibleMachines":326},"HY-CV-08","Cartridge Valve","Hydraulic cartridge valve for injection molding machine manifold blocks.","\u002Fpart-images\u002FHY\u002FHY-CV-08\u002F41953eeb-f34f-4462-bdad-956e39dcf40b.png",[281,320],{"diagram":328,"items":437},{"title":329,"description":330,"base":331,"labels":334,"items":339},"Parts of a bladder accumulator","Section drawing of a bladder accumulator on its mounting clamp: gas valve, shell, bladder, oil port, poppet valve and safety block, numbered.",{"line":332},[333],"M380 302L520 302",[335],{"x":336,"y":337,"text":338},320,164,"N₂",[340,353,366,383,394,408,422],{"id":341,"name":342,"role":343,"marker":344,"shapes":348},"gas-valve","Gas valve","Charging valve for the nitrogen. The pre-charge pressure is checked and topped up here with a charging kit.",[345,346,347,346],616,58,333,{"solid":349},[350,351,352],"M315 46h10a2 2 0 0 1 2 2v4a2 2 0 0 1 -2 2h-10a2 2 0 0 1 -2 -2v-4a2 2 0 0 1 2 -2z","M309 54h22a2 2 0 0 1 2 2v6a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-6a2 2 0 0 1 2 -2z","M303 64h34a2 2 0 0 1 2 2v4a2 2 0 0 1 -2 2h-34a2 2 0 0 1 -2 -2v-4a2 2 0 0 1 2 -2z",{"id":354,"name":355,"role":356,"parts":357,"marker":358,"shapes":361},"shell","Shell","Steel pressure vessel that holds the bladder and the oil, built for the accumulator’s rated pressure.",[260],[345,359,360,359],110,373,{"solid":362,"line":364},[363],"M316 72h8a56 56 0 0 1 56 56v72a56 56 0 0 1 -56 56h-8a56 56 0 0 1 -56 -56v-72a56 56 0 0 1 56 -56z",[365],"M316 80h8a48 48 0 0 1 48 48v72a48 48 0 0 1 -48 48h-8a48 48 0 0 1 -48 -48v-72a48 48 0 0 1 48 -48z",{"id":367,"name":368,"role":369,"marker":370,"shapes":374},"clamp","Mounting clamp","Clamp band and bracket that hold the accumulator to the machine frame so it cannot move with the pressure surges.",[371,372,373,372],24,155,196,{"solid":375,"line":380},[376,377,378,379],"M198 128h8a2 2 0 0 1 2 2v50a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2v-50a2 2 0 0 1 2 -2z","M208 152h44v6h-44z","M253 148h6a1 1 0 0 1 1 1v12a1 1 0 0 1 -1 1h-6a1 1 0 0 1 -1 -1v-12a1 1 0 0 1 1 -1z","M381 148h6a1 1 0 0 1 1 1v12a1 1 0 0 1 -1 1h-6a1 1 0 0 1 -1 -1v-12a1 1 0 0 1 1 -1z",[381,382],"M199.5 138a2.5 2.5 0 1 0 5 0a2.5 2.5 0 1 0 -5 0z","M199.5 172a2.5 2.5 0 1 0 5 0a2.5 2.5 0 1 0 -5 0z",{"id":384,"name":385,"role":386,"marker":387,"shapes":390},"bladder","Bladder","Rubber bag filled with nitrogen. Oil pushed into the shell squeezes the gas; when the system needs oil, the gas expands and pushes it back out.",[345,388,389,388],186,362,{"solid":391},[392,393],"M312 80h16v14h-16z","M320 92h0a42 42 0 0 1 42 42v48a42 42 0 0 1 -42 42h0a42 42 0 0 1 -42 -42v-48a42 42 0 0 1 42 -42z",{"id":395,"name":396,"role":397,"marker":398,"shapes":401},"oil-port","Oil port","Threaded or flanged connection at the bottom of the shell that joins the accumulator to the hydraulic circuit.",[371,399,400,399],266,296,{"solid":402,"line":404},[403],"M298 250h44a2 2 0 0 1 2 2v28a2 2 0 0 1 -2 2h-44a2 2 0 0 1 -2 -2v-28a2 2 0 0 1 2 -2z",[405,406,407],"M300 270L340 270","M300 274L340 274","M300 278L340 278",{"id":409,"name":410,"role":411,"marker":412,"shapes":416},"poppet","Poppet valve","Spring-loaded valve in the oil port. It closes when the shell runs empty, so the bladder cannot be pushed out through the port.",[345,413,414,415],243,338,242,{"solid":417,"line":419},[418],"M302 238L338 238L330 248L310 248Z",[420,421],"M320 248L320 268","M313 252L327 255L313 258L327 261L313 264",{"id":423,"name":424,"role":425,"marker":426,"shapes":429},"safety-block","Safety block","Shut-off and relief block under the accumulator. It isolates the accumulator for service and lets the stored oil drain to the tank before anyone works on the circuit.",[336,427,336,428],336,314,{"solid":430,"line":434},[431,432,433],"M310 282h20v8h-20z","M262 290h116a2 2 0 0 1 2 2v20a2 2 0 0 1 -2 2h-116a2 2 0 0 1 -2 -2v-20a2 2 0 0 1 2 -2z","M244 296h14a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-14a2 2 0 0 1 -2 -2v-8a2 2 0 0 1 2 -2z",[435,436],"M232 302L242 302","M360 290L360 280L392 280",[354],[439],{"to":440,"label":441,"description":442},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Faccumulator\u002F","Accumulator","How the bladder accumulator of an injection molding machine stores oil for high-speed injection: its parts, nitrogen pre-charge checks, safety and signs of failure.",[444],{"title":445,"path":446,"description":447,"date":448,"category":449,"tags":450},"Troubleshooting Hydraulic Pressure Loss in Injection Molding Machines","\u002Fblog\u002Ftroubleshooting-hydraulic-pressure-loss","Diagnose and fix hydraulic pressure loss problems in injection molding machines. Common causes, step-by-step troubleshooting, and replacement parts guide.","2026-09-30","Troubleshooting",[38,451,452,453,454,455],"pressure loss","troubleshooting","vane pump","piston pump","control valve",1793548975646]