Lesson 1Usual Tools and Checking Spots: Pressure, Flow, Temperature, Dirt Sensors, and Shake/Noise SensorsThis part defines tools for watching press hydraulics, including pressure, flow, temperature, dirt, shake, and noise. It shows where to put sensors, their ranges, signal kinds, and how data helps find problems and plan fixes ahead.
Pressure sensor ranges and fitting placesFlow checking for pumps and mover branchesOil heat sensing in tank and key linesDirt counters and clean check spotsShake and noise sensors on pumps and motorsLesson 2Main Hydraulic Power Unit (HPU) Plan: Tank, Pump(s), Main Driver, Heat Changer, Helper SystemsThis part shows main HPU plan for 250-bar presses, detailing tank design, pump and motor setup, suck and return paths, heat changers, and helper systems that make sure steady, quiet, and easy-to-service work.
Tank size, walls, and air removal featuresPump fitting, lining up, and suck line designMain driver choice and joining setupsReturn line paths and foam stop waysFitting coolers, filters, and connectorsLesson 3Heat Handling: Oil-Air Coolers, Flow Paths, Heat-Control Bypass Valves, and Heat Load GuessingThis part covers heat ways in high-pressure press lines, including heat making sources, oil-air cooler choice, flow paths, heat-control bypass design, and heat load guessing to keep fluid good and parts reliable.
Heat making sources in press hydraulicsHeat load guessing and work cycle checkOil-air cooler size and work curvesCooler place, flow paths, and pipe setupHeat-control bypass valve choice and adjustLesson 4Direction Control: Proportional Direction Valve Kinds, Spool Moves, Flow Control and Electrohydraulic LinksThis part looks at proportional direction valves used in 250-bar presses, covering valve kinds, spool moves, flow measure, and electrohydraulic links needed for exact move control, repeat, and safe stop ways.
Valve build and proportional move methodsSpool shape, overlap, and flow measure waysMove response, lag, and shake tricksBuilt-in electronics, drivers, and signal rulesSafe stop places and emergency stop plansLesson 5Filtering and Dirt Control: Filter Kinds, Places (Suck, Pressure, Return), Bypass and WatchingThis part talks about filter plan for high-pressure presses, covering filter kinds, ratings, and places on suck, pressure, and return lines, plus bypass valves, block signs, and clean goals for long part life.
Clean class goals for press partsSuck strainers vs low-pressure filtersHigh-pressure filter choice and sizeReturn line filters and side kidney-loop unitsBypass valves and pressure diff signsLesson 6Energy Keeping and Smoothing: Accumulator Kinds, Place, Size and Safety ToolsThis part explains hydraulic accumulators for energy keeping and pulse damping, covering bladder, piston, and membrane kinds, place, prefill, size for press cycles, and safety tools needed by rules and laws.
Accumulator kinds and build detailsEnergy keep counts for press cyclesPrefill pressure choice and checkPlace for pulse damping and responseSafety blocks, shut valves, and rulesLesson 7Fluid Lines and Diagram Reading: Common Setups for Forming Presses, Mover Piping, and Bleed/Vent PathsThis part builds full fluid lines for forming presses, teaching diagram signs, common press setups, mover piping, bleed and vent paths, and how to read, check, and write hydraulic diagrams for jobs.
ISO hydraulic signs and line waysUsual single- and double-move press linesClamp, form, and return stroke setupsBleed, vent, and air remove plansReading and checking full press diagramsLesson 8Power Pass Parts: Variable Move Axial Piston Pump Ways and Control LinksThis part focuses on variable move axial piston pumps used in 250-bar presses, describing work ways, tilt plate control, balance options, and electronic links that match flow, pressure, and energy save.
Axial piston pump work waysTilt plate tools and stroke controlPressure and load-sense control optionsElectrohydraulic pump control linksStart, setup, and fix problemsLesson 9Pressure Control Parts: Relief Valves, Pressure Balancers, Sequence and Unload ValvesThis part checks pressure control parts in press lines, including relief valves, pressure balancers, sequence valves, and unload valves, explaining settings, steady, mix, and their role in safety and energy save.
Main system relief valve size and setPump pressure balancer works and adjustSequence valves for step cylinder worksUnload valves for low-loss idle workMix of many pressure control tools
