Lesson 1Typical instrumentation and monitoring points: pressure, flow, temperature, contamination sensors, and vibration/noise sensorsThis part describes tools for watching press hydraulics, covering pressure, flow, temperature, dirt levels, shaking, and sound. It covers where to place sensors, their ranges, signal types, and how data helps in fixing problems and planning maintenance ahead.
Pressure sensor ranges and fitting spotsFlow checks for pumps and moving partsOil heat sensing in tanks and key pipesDirt counters and clean check pointsShake and sound sensors on pumps and enginesLesson 2Central hydraulic power unit (HPU) layout: reservoir, pump(s), prime mover, heat exchanger, auxiliary systemsThis part shows the main HPU setup for 250-bar presses, covering tank design, pump and engine placement, intake and return paths, heat exchangers, and support systems for steady, quiet, and simple servicing.
Tank size, barriers, and air removal featuresPump fitting, lining up, and intake pipe designEngine choice and connection setupsReturn pipe paths and foam control methodsFitting coolers, filters, and connectorsLesson 3Thermal management: oil-air coolers, flow paths, thermostatic bypass valves, and heat load estimationThis part looks at heat in high-pressure press systems, including heat sources, oil-air cooler choices, flow routes, auto-bypass design, and heat amount guesses to keep oil good and parts reliable.
Heat sources in press hydraulicsHeat amount guesses and work cycle checksOil-air cooler size and work curvesCooler spots, flow routes, and pipe setupsAuto-bypass valve choice and adjustmentsLesson 4Directional control: proportional directional valve types, spool dynamics, flow control and electrohydraulic interfacesThis part studies adjustable direction valves in 250-bar presses, covering types, spool movement, flow control, and electric-hydraulic links for exact movement, repeat actions, and safe stops.
Valve build and adjustable drive methodsSpool shape, overlap, and flow control waysMovement response, lag, and shake techniquesBuilt-in electronics, drivers, and signal rulesSafe stop spots and emergency plansLesson 5Filtration and contamination control: filter types, locations (suction, pressure, return), bypass and monitoringThis part covers filter plans for high-pressure presses, including types, ratings, and spots on intake, pressure, and return lines, plus bypass valves, block checks, and clean goals for long part life.
Clean level goals for press partsIntake screens vs low-pressure filtersHigh-pressure filter choice and sizeReturn line filters and extra clean unitsBypass valves and pressure difference checksLesson 6Energy storage and smoothing: accumulator types, placement, sizing and safety devicesThis part explains hydraulic accumulators for energy saving and shake reduction, covering bladder, piston, and membrane types, spots, pre-fill, size for press cycles, and safety tools as per rules.
Accumulator types and build detailsEnergy save counts for press cyclesPre-fill pressure choice and checksSpots for shake reduction and quick responseSafety 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 paths for forming presses, teaching diagram signs, common press setups, moving part pipes, bleed and air out paths, and how to read, check, and record hydraulic plans.
ISO hydraulic signs and line rulesCommon single and double action press pathsClamping, forming, and return move setupsBleed, air out, and air removal plansReading and checking full press diagramsLesson 8Power transmission elements: variable displacement axial piston pump principles and control interfacesThis part focuses on adjustable volume axial piston pumps in 250-bar presses, describing work rules, tilt plate control, adjuster choices, and electric links for flow, pressure, and energy saving.
Axial piston pump work rulesTilt plate setups and stroke controlPressure and load sense control choicesElectric-hydraulic pump control linksStart up, setup, and fix tipsLesson 9Pressure control components: relief valves, pressure compensators, sequence and unloading valvesThis part checks pressure control parts in press paths, including relief valves, pressure adjusters, sequence valves, and unload valves, explaining settings, steadiness, links, and roles in safety and energy saving.
Main system relief valve size and settingPump pressure adjuster works and tweaksSequence valves for step cylinder worksUnload valves for low waste idle workLinks of many pressure control tools
