[{"data":1,"prerenderedAt":869},["ShallowReactive",2],{"catalog:meta":3,"guides:page:\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fhydraulic-pump:*":258,"guides:topics:hydraulics:\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fhydraulic-pump:path,title,short":634,"guides:page:\u002Finjection-molding-machine-parts\u002Fhydraulics:diagram":720,"diagram:id:power-unit":722,"catalog:parts::HY-PW-02,HY-PW-06,HY-PW-07":849},{"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":604,"diagram":605,"extension":606,"faq":607,"item":620,"lastModified":621,"meta":622,"navigation":623,"order":21,"parts":624,"path":628,"seo":629,"seoTitle":630,"short":631,"stem":632,"__hash__":633},"guides\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fhydraulic-pump.md","Hydraulic pump of an injection molding machine",{"type":262,"value":263,"toc":590},"minimark",[264,281,286,293,302,306,323,327,407,411,423,427,438,441,452,460,464,484,492,496,538,542,568,572],[265,266,267,268,272,273,276,277,280],"p",{},"The hydraulic pump of an injection molding machine turns the rotation of the electric motor into the flow of oil that powers every movement. Three types are used: ",[269,270,271],"strong",{},"vane pumps",", ",[269,274,275],{},"axial piston pumps"," and ",[269,278,279],{},"gear pumps",". The pump sits on the oil tank, joined to the motor by a bell housing and coupling, and it is identified by the model code on its nameplate.",[282,283,285],"h2",{"id":284},"how-a-hydraulic-pump-works","How a hydraulic pump works",[265,287,288,289,292],{},"All three types are positive-displacement pumps. Chambers inside the pump open on the suction side, fill with oil, close, and are emptied on the pressure side. The volume delivered per revolution is the ",[269,290,291],{},"displacement",", usually given in cm³\u002Frev, so the flow is the displacement multiplied by the speed, less the oil that leaks inside the pump.",[265,294,295,296,301],{},"The pump does not create pressure by itself. Pressure rises when the oil meets resistance at the valves and cylinders, up to the limit set by the ",[297,298,300],"a",{"href":299},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Frelief-valve\u002F","relief valve",", the pump's own control or the servo drive. That is why a worn pump shows up first as lost flow: oil leaks back inside the pump instead of going to the circuit, and the leak grows as the pressure rises.",[282,303,305],{"id":304},"fixed-and-variable-displacement","Fixed and variable displacement",[307,308,309,317],"ul",{},[310,311,312,313,316],"li",{},"A ",[269,314,315],{},"fixed-displacement"," pump delivers the same volume every revolution. At constant motor speed it delivers constant flow, and valves decide how much reaches the actuators; the rest returns to the tank. Driven by a servo motor, its flow follows the motor speed instead.",[310,318,312,319,322],{},[269,320,321],{},"variable-displacement"," pump can change its displacement while it runs. On injection molding machines this is the axial piston pump, whose swashplate angle sets the flow and whose control reduces it when the set pressure is reached.",[282,324,326],{"id":325},"pump-types-compared","Pump types compared",[328,329,330,348],"table",{},[331,332,333],"thead",{},[334,335,336,339,342,345],"tr",{},[337,338],"th",{},[337,340,341],{},"Vane pump",[337,343,344],{},"Axial piston pump",[337,346,347],{},"Gear pump",[349,350,351,365,379,393],"tbody",{},[334,352,353,357,360,363],{},[354,355,356],"td",{},"Displacement on injection molding machines",[354,358,359],{},"Fixed",[354,361,362],{},"Usually variable",[354,364,359],{},[334,366,367,370,373,376],{},[354,368,369],{},"Typical use",[354,371,372],{},"Fixed pump machines, often as double pumps",[354,374,375],{},"Machines with a variable pump control",[354,377,378],{},"Servo pump systems, some smaller machines",[334,380,381,384,387,390],{},[354,382,383],{},"Sensitivity to dirty oil",[354,385,386],{},"Moderate",[354,388,389],{},"High",[354,391,392],{},"Lower",[334,394,395,398,401,404],{},[354,396,397],{},"Repair",[354,399,400],{},"Cartridge kit (rotor, vanes, cam ring, side plates)",[354,402,403],{},"Rebuild of the rotating group and control",[354,405,406],{},"Small pumps usually replaced; larger internal gear pumps can be overhauled",[408,409,341],"h3",{"id":410},"vane-pump",[265,412,413,414,418,419,422],{},"A slotted rotor turns inside an oval cam ring and its sliding vanes carry the oil around. Fixed vane pumps such as the PV2R, Vickers V and VQ, SQP and 50T series were for a long time the standard pump on conventional machines. See the ",[297,415,417],{"href":416},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fvane-pump\u002F","vane pump page"," and the ",[297,420,271],{"href":421},"\u002Fparts\u002Fhy-pw-06\u002F"," we supply.",[408,424,426],{"id":425},"piston-pump","Piston pump",[265,428,429,430,418,434,422],{},"Pistons in a rotating cylinder block stroke against a tilted swashplate; changing the angle changes the flow. Variable piston pumps waste less energy than a fixed pump with valves, but need cleaner oil. See the ",[297,431,433],{"href":432},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fpiston-pump\u002F","piston pump page",[297,435,437],{"href":436},"\u002Fparts\u002Fhy-pw-07\u002F","piston pumps",[408,439,347],{"id":440},"gear-pump",[265,442,443,444,418,448,422],{},"Meshing gears carry the oil from suction to outlet: two equal gears side by side in an external gear pump, or a small gear driving a ring gear in an internal gear pump. Internal gear pumps run quietly with a smooth flow and are a common choice for servo pump systems. See the ",[297,445,447],{"href":446},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fgear-pump\u002F","gear pump page",[297,449,451],{"href":450},"\u002Fparts\u002Fhy-pw-02\u002F","gear pump",[265,453,454,455,459],{},"For a direct comparison of the two most common types, read ",[297,456,458],{"href":457},"\u002Fblog\u002Fvane-pump-vs-piston-pump-injection-molding\u002F","vane pump vs piston pump",".",[282,461,463],{"id":462},"signs-of-a-failing-pump","Signs of a failing pump",[307,465,466,469,472,475,478,481],{},[310,467,468],{},"Movements slower than before at the same speed settings.",[310,470,471],{},"Pressure that does not reach the setpoint, or falls under load.",[310,473,474],{},"More noise: a whine, a rattle or a growl that was not there before.",[310,476,477],{},"The pump body and the oil running hotter than usual.",[310,479,480],{},"Oil leaking at the shaft seal.",[310,482,483],{},"Metal particles in the suction filter or on the drain plug magnet.",[265,485,486,487,491],{},"Before blaming the pump, rule out the suction side, the relief valve and the coupling, which cause the same symptoms. Our guide to ",[297,488,490],{"href":489},"\u002Fblog\u002Ftroubleshooting-hydraulic-pressure-loss\u002F","troubleshooting hydraulic pressure loss"," explains the order of tests.",[282,493,495],{"id":494},"why-hydraulic-pumps-fail","Why hydraulic pumps fail",[307,497,498,504,510,516,522,528],{},[310,499,500,503],{},[269,501,502],{},"Dirty oil."," Particles wear the close-fitting surfaces that seal the pump chambers.",[310,505,506,509],{},[269,507,508],{},"Cavitation."," A blocked suction filter, a low oil level, a partly closed suction valve or cold, thick oil leaves the pump short of oil. Vapor bubbles collapse inside it and erode the metal.",[310,511,512,515],{},[269,513,514],{},"Air."," A leak in the suction line or a worn shaft seal lets air in; the oil foams and the pump runs noisy and rough.",[310,517,518,521],{},[269,519,520],{},"Misalignment."," A worn coupling or bell housing loads the shaft and bearings.",[310,523,524,527],{},[269,525,526],{},"Start-up damage."," Running a new pump dry, or the wrong way round, damages it within a short time.",[310,529,530,533,534,459],{},[269,531,532],{},"Overheated or wrong oil."," Oil that is too thin leaks more inside the pump; oil that is too thick at start-up starves it. See ",[297,535,537],{"href":536},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fhydraulic-oil\u002F","hydraulic oil",[282,539,541],{"id":540},"identifying-and-replacing-a-pump","Identifying and replacing a pump",[543,544,545,548,551,559,562,565],"ol",{},[310,546,547],{},"Read and photograph the model code on the nameplate. It identifies the series, size, mounting, direction of rotation and control.",[310,549,550],{},"If the plate is unreadable, record the shaft (keyed or splined, its diameter), the flange (2-bolt or 4-bolt, pilot diameter), the port sizes and positions, and the direction of rotation.",[310,552,553,554,558],{},"Before fitting the new pump, inspect the ",[297,555,557],{"href":556},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fpump-coupling\u002F","pump coupling and bell housing"," and replace the coupling insert.",[310,560,561],{},"Fill the pump with clean oil; a piston pump's case must be filled through its drain port.",[310,563,564],{},"Open the suction valve, check the direction of rotation, and start the pump unloaded until the air is out and the noise is steady.",[310,566,567],{},"Change the filters, then check the pressure settings with a gauge against the values in the machine manual.",[282,569,571],{"id":570},"what-to-send-for-a-replacement-quote","What to send for a replacement quote",[265,573,574,575,579,580,584,585,589],{},"The full model code from the pump nameplate, the machine brand, model and serial number, and photos of the pump, its nameplate, shaft, flange and ports. If the machine has a double pump or more than one pump unit, say which one you need. ",[297,576,578],{"href":577},"\u002Frequest-quote\u002F","Request a quote"," with these details, or see how the pump fits into the ",[297,581,583],{"href":582},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fpower-unit\u002F","hydraulic power unit",". The ",[297,586,588],{"href":587},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002F","hydraulic system guide"," shows where the pump sits in the circuit.",{"title":591,"searchDepth":21,"depth":21,"links":592},"",[593,594,595,600,601,602,603],{"id":284,"depth":21,"text":285},{"id":304,"depth":21,"text":305},{"id":325,"depth":21,"text":326,"children":596},[597,598,599],{"id":410,"depth":113,"text":341},{"id":425,"depth":113,"text":426},{"id":440,"depth":113,"text":347},{"id":462,"depth":21,"text":463},{"id":494,"depth":21,"text":495},{"id":540,"depth":21,"text":541},{"id":570,"depth":21,"text":571},"The hydraulic pump types used on injection molding machines (vane, piston, gear), fixed and variable displacement, signs of failure and how to identify a pump.","power-unit","md",[608,611,614,617],{"question":609,"answer":610},"What type of hydraulic pump does an injection molding machine use?","Conventional machines with a constant-speed motor usually have a fixed-displacement vane pump or a variable-displacement axial piston pump. Servo-hydraulic machines drive a fixed pump, often an internal gear pump, with a servo motor. The model code on the pump's nameplate tells you which type you have.",{"question":612,"answer":613},"How do I know if my hydraulic pump is worn?","Movements become slower at the same settings, the pressure drops or will not reach the setpoint under load, the pump gets louder and the oil runs hotter. Metal particles in the suction filter or on the drain plug magnet point to internal wear.",{"question":615,"answer":616},"Can I replace a vane pump with a piston pump?","Not directly. The two differ in control, mounting, ports and drain connections, and the machine's hydraulic control is designed around the original pump. Replace like with like unless the machine maker approves a conversion.",{"question":618,"answer":619},"Does the direction of rotation of a hydraulic pump matter?","Yes. Most pumps are built for one direction of rotation, shown in the model code or by an arrow on the body, usually as seen from the shaft end. A pump turned the wrong way does not deliver oil and can be damaged.","pump","2026-11-01",{},true,[625,626,627],"HY-PW-06","HY-PW-07","HY-PW-02","\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fhydraulic-pump",{"title":260,"description":604},"Injection Molding Machine Hydraulic Pump: Types and Faults","Hydraulic pump types","injection-molding-machine-parts\u002Fhydraulics\u002Fhydraulic-pump","QyNrz0kt2eH_RXCeOvWIeSO9f670-djLODuvqkfgIE4",[635,639,642,645,648,652,656,660,664,668,672,676,680,684,688,692,696,700,704,708,712,716],{"path":636,"title":637,"short":638},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fhydraulic-circuit","Hydraulic circuit of an injection molding machine","Hydraulic circuit",{"path":640,"title":641,"short":341},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fvane-pump","Vane pump of an injection molding machine",{"path":643,"title":644,"short":426},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fpiston-pump","Piston pump of an injection molding machine",{"path":646,"title":647,"short":347},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fgear-pump","Gear pump of an injection molding machine",{"path":649,"title":650,"short":651},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fservo-pump","Servo pump system of an injection molding machine","Servo pump system",{"path":653,"title":654,"short":655},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fpump-coupling","Pump coupling and bell housing of an injection molding machine","Pump coupling",{"path":657,"title":658,"short":659},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fpower-unit","Hydraulic power unit of an injection molding machine","Hydraulic power unit",{"path":661,"title":662,"short":663},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fdirectional-valve","Solenoid directional valve of an injection molding machine","Directional valve",{"path":665,"title":666,"short":667},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fproportional-valve","Proportional valve of an injection molding machine","Proportional valve",{"path":669,"title":670,"short":671},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fcartridge-valve","Cartridge valve of an injection molding machine","Cartridge valve",{"path":673,"title":674,"short":675},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fhydraulic-check-valve","Hydraulic check valve of an injection molding machine","Hydraulic check valve",{"path":677,"title":678,"short":679},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Frelief-valve","Relief valve of an injection molding machine","Relief valve",{"path":681,"title":682,"short":683},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fvalve-manifold","Valve manifold of an injection molding machine","Valve manifold",{"path":685,"title":686,"short":687},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Faccumulator","Accumulator of an injection molding machine","Accumulator",{"path":689,"title":690,"short":691},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fhydraulic-oil","Hydraulic oil for injection molding machines","Hydraulic oil",{"path":693,"title":694,"short":695},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Foil-temperature","Oil temperature of an injection molding machine","Oil temperature",{"path":697,"title":698,"short":699},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Foil-filter","Hydraulic oil filter of an injection molding machine","Oil filter",{"path":701,"title":702,"short":703},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Foil-cooler","Oil cooler (heat exchanger) of an injection molding machine","Oil cooler",{"path":705,"title":706,"short":707},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Foil-tank","Hydraulic oil tank of an injection molding machine","Oil tank",{"path":709,"title":710,"short":711},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fcooling-water-manifold","Cooling water manifold of an injection molding machine","Cooling water manifold",{"path":713,"title":714,"short":715},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fpressure-gauge","Hydraulic pressure gauge of an injection molding machine","Pressure gauge",{"path":717,"title":718,"short":719},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fpressure-transducer","Pressure transducer of an injection molding machine","Pressure transducer",{"diagram":721},"hydraulic-system",{"diagram":723},{"title":724,"description":725,"base":726,"labels":735,"items":744},"Parts of a hydraulic power unit","Line drawing of a hydraulic pump unit on its oil tank, and the hydraulic motor that turns the screw at the back of the injection unit, numbered.",{"solid":727,"line":731,"hidden":733},[728,729,730],"M404 152h72v28h-72z","M434 132h22v20h-22z","M479 136h34a3 3 0 0 1 3 3v54a3 3 0 0 1 -3 3h-34a3 3 0 0 1 -3 -3v-54a3 3 0 0 1 3 -3z",[732],"M256 154L256 104L380 104",[734],"M410 166L526 166",[736,740],{"x":737,"y":738,"text":739},350,96,"TO VALVES",{"x":741,"y":742,"text":743},470,226,"SCREW DRIVE",[745,762,784,800,817,835],{"id":746,"name":747,"role":748,"parts":749,"marker":751,"shapes":755},"unit","Complete pump unit","Motor, bell housing, coupling and pump supplied together on their bracket, ready to bolt onto the tank in one piece.",[750],"HY-PW-03",[752,753,752,754],56,24,126,{"solid":756,"hidden":760},[757,758,759],"M52 232h246v6h-246z","M70 238h14v8h-14z","M258 238h14v8h-14z",[761],"M44 126h256a6 6 0 0 1 6 6v104a6 6 0 0 1 -6 6h-256a6 6 0 0 1 -6 -6v-104a6 6 0 0 1 6 -6z",{"id":763,"name":764,"role":765,"subcategory":23,"marker":766,"shapes":769},"motor","Electric motor","Drives the pump, either at constant speed (induction motor) or at the speed each phase of the cycle needs (servo motor).",[767,753,767,768],116,136,{"solid":770,"line":775},[771,772,773,774],"M48 160h4a4 4 0 0 1 4 4v50a4 4 0 0 1 -4 4h-4a4 4 0 0 1 -4 -4v-50a4 4 0 0 1 4 -4z","M64 150h104a8 8 0 0 1 8 8v60a8 8 0 0 1 -8 8h-104a8 8 0 0 1 -8 -8v-60a8 8 0 0 1 8 -8z","M98 136h36a2 2 0 0 1 2 2v10a2 2 0 0 1 -2 2h-36a2 2 0 0 1 -2 -2v-10a2 2 0 0 1 2 -2z","M64 226h104v6h-104z",[776,777,778,779,780,781,782,783],"M70 158L70 218","M83 158L83 218","M96 158L96 218","M109 158L109 218","M122 158L122 218","M135 158L135 218","M148 158L148 218","M161 158L161 218",{"id":785,"name":786,"role":787,"parts":788,"marker":790,"shapes":793},"coupling","Coupling and bell housing","The bell housing centres the pump on the motor flange; the jaw coupling inside joins the two shafts and absorbs vibration.",[789],"HY-PW-05",[791,753,791,792],201,164,{"solid":794,"hidden":797},[795,796],"M176 158L226 170L226 210L176 220Z","M190 217.2L212 212.8L212 232L190 232Z",[798,799],"M190 177h22a2 2 0 0 1 2 2v22a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-22a2 2 0 0 1 2 -2z","M201 177L201 203",{"id":620,"name":801,"role":802,"parts":803,"marker":804,"shapes":808},"Hydraulic pump","Vane, piston or gear pump that turns the motor’s rotation into oil flow for every movement of the machine.",[625,626,627],[805,753,806,807],306,285,172,{"solid":809,"line":813},[810,811,812],"M230 168h52a4 4 0 0 1 4 4v36a4 4 0 0 1 -4 4h-52a4 4 0 0 1 -4 -4v-36a4 4 0 0 1 4 -4z","M247 154h18a1 1 0 0 1 1 1v12a1 1 0 0 1 -1 1h-18a1 1 0 0 1 -1 -1v-12a1 1 0 0 1 1 -1z","M247 212h18a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-18a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z",[814,815,816],"M236 169L236 211","M276 169L276 211","M256 222L256 246",{"id":818,"name":819,"role":820,"parts":821,"marker":823,"shapes":826},"screw-motor","Plasticizing motor","Low-speed, high-torque radial piston motor at the back of the injection unit. It turns the screw that melts and meters the plastic.",[822],"HY-PW-08",[824,753,824,825],552,134,{"solid":827,"hidden":833},[828,829,830,831,832],"M518 126h6a2 2 0 0 1 2 2v76a2 2 0 0 1 -2 2h-6a2 2 0 0 1 -2 -2v-76a2 2 0 0 1 2 -2z","M534 134h36a8 8 0 0 1 8 8v48a8 8 0 0 1 -8 8h-36a8 8 0 0 1 -8 -8v-48a8 8 0 0 1 8 -8z","M581 146h14a3 3 0 0 1 3 3v34a3 3 0 0 1 -3 3h-14a3 3 0 0 1 -3 -3v-34a3 3 0 0 1 3 -3z","M599 152h6a1 1 0 0 1 1 1v6a1 1 0 0 1 -1 1h-6a1 1 0 0 1 -1 -1v-6a1 1 0 0 1 1 -1z","M599 176h6a1 1 0 0 1 1 1v6a1 1 0 0 1 -1 1h-6a1 1 0 0 1 -1 -1v-6a1 1 0 0 1 1 -1z",[834],"M534 166a18 18 0 1 0 36 0a18 18 0 1 0 -36 0z",{"id":836,"name":707,"role":837,"subcategory":129,"marker":838,"shapes":842},"tank","Reservoir under the pump unit. The pump draws its oil from it, and all returning oil flows back into it.",[839,840,839,841],120,336,304,{"solid":843,"hidden":847},[844,845,846],"M39 246h338a3 3 0 0 1 3 3v52a3 3 0 0 1 -3 3h-338a3 3 0 0 1 -3 -3v-52a3 3 0 0 1 3 -3z","M341 238h16a1 1 0 0 1 1 1v6a1 1 0 0 1 -1 1h-16a1 1 0 0 1 -1 -1v-6a1 1 0 0 1 1 -1z","M315 258h4a3 3 0 0 1 3 3v26a3 3 0 0 1 -3 3h-4a3 3 0 0 1 -3 -3v-26a3 3 0 0 1 3 -3z",[848],"M44 264L304 264",[850,856,863],{"partNumber":627,"name":851,"subcategory":56,"subcategoryName":57,"shortDescription":852,"inStock":623,"zone":243,"compatibleMachines":853},"Gear Pump (Sumitomo QT32)","Sumitomo QT32 series internal gear pump for injection molding machine hydraulic systems.",[854,855],"Haitian MA Series","Yizumi A5 Series",{"partNumber":625,"name":857,"subcategory":56,"subcategoryName":57,"shortDescription":858,"image":859,"inStock":623,"zone":243,"compatibleMachines":860},"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",[854,861,862],"Haitian Jupiter Series","Chen Hsong JM Series",{"partNumber":626,"name":864,"subcategory":56,"subcategoryName":57,"shortDescription":865,"image":866,"inStock":623,"zone":243,"compatibleMachines":867},"Hydraulic Piston Pump","Variable displacement hydraulic piston pump for high-pressure injection molding machine applications.","\u002Fpart-images\u002FHY\u002FHY-PW-07\u002FYUKEN Piston Pump\u002FWechatIMG807.jpg",[854,861,868],"Chen Hsong SM Series",1793548982966]