Lesson 1Common tools and watching points: 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 watching pointsShake and noise sensors on pumps and motorsLesson 2Main hydraulic power unit (HPU) setup: tank, pump(s), main driver, heat changer, helper systemsThis part shows main HPU setup for 250-bar presses, explaining 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 fitting, lining, and suck line designMain driver choice and joining waysReturn line paths and foam stop plansFitting coolers, filters, and connectorsLesson 3Heat handling: oil-air coolers, flow ways, heat-control bypass valves, and heat load guessingThis 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 guessing to keep fluid good and parts strong.
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: matching direction valve kinds, spool moves, flow control and electric-hydraulic linksThis part looks at matching 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 matching act waysSpool shape, overlap, and flow measure actsMove answer, lag, and shake waysBuilt-in electric parts, drivers, and signal rulesSafe stop places and stop plansLesson 5Filter and dirt control: filter kinds, places (suck, pressure, return), bypass and watchingThis part talks filter plans for high-pressure presses, covering filter kinds, rates, and places on suck, pressure, and return lines, plus bypass valves, block signs, and clean goals for long part life.
Clean goal classes for press partsSuck screens vs low-pressure filtersHigh-pressure filter choice and sizeReturn line filters and side kidney-loop unitsBypass valves and pressure diff signsLesson 6Energy keep and smooth: store kinds, place, size and safe toolsThis part explains hydraulic stores for energy keep and pulse stop, covering bag, piston, and skin kinds, place, pre-fill, size for press cycles, and safe tools needed by rules and laws.
Store kinds and build detailsEnergy keep counts for press cyclesPre-fill pressure choice and checkPlace for pulse stop and answerSafe blocks, shut valves, and rulesLesson 7Fluid lines and diagram reading: common setups for forming presses, mover piping, and bleed/air pathsThis part builds full fluid lines for forming presses, teaching diagram signs, common press setups, mover piping, bleed and air paths, and how to read, check, and write hydraulic plans for works.
ISO hydraulic signs and line waysCommon one- and two-act press linesClamp, form, and return move setupsBleed, air, and air remove plansReading and checking full press diagramsLesson 8Power send parts: change size axial piston pump rules and control linksThis part looks at change size axial piston pumps in 250-bar presses, explaining 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 move controlPressure and load-sense control choicesElectric-hydraulic pump control linksStart, set up, and fix problemsLesson 9Pressure control parts: safe valves, pressure balancers, order and unload valvesThis part checks pressure control parts in press lines, including safe valves, pressure balancers, order valves, and unload valves, explaining sets, steady, links, and their part in safe and energy save.
Main line safe valve size and setPump pressure balancer works and adjustOrder valves for step cylinder worksUnload valves for low-loss wait workLinks of many pressure control tools
