Lesson 1Typical instrumentation and monitoring points: pressure, flow, temperature, contamination sensors, and vibration/noise sensorsThis part defines tools for watching press hydraulics, including pressure, flow, temperature, dirt, vibration, 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 spotsFlow checking for pumps and mover partsOil heat sensing in tank and key linesDirt counters and clean check pointsShake and sound sensors on pumps and motorsLesson 2Central hydraulic power unit (HPU) layout: reservoir, pump(s), prime mover, heat exchanger, auxiliary systemsThis part shows central HPU setup for 250-bar presses, detailing tank design, pump and motor placing, suck and return paths, heat changers, and helper systems for steady, quiet, and easy-to-service work.
Tank size, walls, and air removal partsPump fixing, lining up, and suck line planMain mover choice and link setupsReturn line paths and foam stop waysFitting coolers, filters, and joinersLesson 3Thermal management: oil-air coolers, flow paths, thermostatic bypass valves, and heat load estimationThis part covers heat actions in high-pressure press lines, including heat making sources, oil-air cooler choice, flow paths, heat-control bypass design, and heat load guess to keep fluid good and parts reliable.
Heat making sources in press hydraulicsHeat load guess and work cycle checkOil-air cooler size and work curvesCooler spot, flow paths, and pipe setupHeat-control bypass valve choice and adjustLesson 4Directional control: proportional directional valve types, spool dynamics, flow control and electrohydraulic interfacesThis part looks at proportional direction valves in 250-bar presses, covering valve kinds, spool moves, flow measure, and electric-hydraulic links for exact move control, repeat, and safe stop actions.
Valve build and proportional move waysSpool shape, overlap, and flow measure actsMove response, lag, and shake tricksBuilt-in electrics, drivers, and signal rulesSafe stop spots and emergency plansLesson 5Filtration and contamination control: filter types, locations (suction, pressure, return), bypass and monitoringThis part handles filter plans for high-pressure presses, covering filter kinds, ratings, and spots 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 unitsBypass valves and pressure diff signsLesson 6Energy storage and smoothing: accumulator types, placement, sizing and safety devicesThis part explains hydraulic accumulators for energy keep and pulse calm, covering bladder, piston, and sheet kinds, spot, pre-fill, size for press cycles, and safety tools needed by rules and laws.
Accumulator kinds and build detailsEnergy keep counts for press cyclesPre-fill pressure choice and checkSpot for pulse calm and quick answerSafety blocks, shut valves, and rulesLesson 7Fluid circuits and schematic interpretation: common arrangements for forming presses, actuator 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 plans for jobs.
ISO hydraulic signs and line waysUsual single- and double-act press linesClamp, form, and return stroke setupsBleed, vent, and air remove plansReading and checking full press diagramsLesson 8Power transmission elements: variable displacement axial piston pump principles and control interfacesThis part focuses on change displacement axial piston pumps in 250-bar presses, describing work rules, tilt plate control, balance choices, and electric links that match flow, pressure, and energy save.
Axial piston pump work rulesTilt plate tools and stroke controlPressure and load-sense control choicesElectric-hydraulic pump control linksStart, set up, and fix problemsLesson 9Pressure control components: relief valves, pressure compensators, sequence and unloading valvesThis part checks pressure control parts in press lines, including relief valves, pressure balancers, sequence valves, and unload valves, explaining sets, steady, links, and 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 workLinks of many pressure control tools
