IFPS CFPS case studies
IFPS CFPS · Put your knowledge to work in context.
The Fluid Power Specialist credential is one of the certifications listed by the International Fluid Power Society (IFPS) under its Certification/Recert section, alongside the Fluid Power Support Associate, Fluid Power Mechanic, Fluid Power Connector & Conductor, Fluid Power Technician, Fluid Power Engineer, Fluid Power System Designer, and the Accredited Instructor & Job Performance Proctor designation. It is intended for people building and advancing professional careers in the fluid power and motion control workforce, an industry the IFPS describes as one it supports through education, training, and certification. The IFPS CFPS case studies are 5 cases and about 2,659 words.
1Press Cylinder Power Unit: Pressure, Flow, and Heat Balance
A 4.00 in bore, 2.50 in rod, 30 in stroke double-acting cylinder on a 20-ton press must extend against a 20,000 lbf load at 4.0 in/s. The existing power unit has a fixed-displacement 15 gpm pump, a relief valve set at 2,500 psi, a 40 gal reservoir, and no oil cooler.
565 words, about 3 min2Lift Cylinder Creep: Isolating the Leak Path
A 6.00 in bore, 3.50 in rod single-rod cylinder holds a 40,000 lbf die-lift platen at a raised maintenance position. A pilot-operated check valve with a 4.5:1 pilot ratio locks the cap port, and a closed-center directional valve is centered while the pump runs.
539 words, about 3 min3Vacuum Cup Handling: Sizing and Intermittent Drop
Four 40 mm diameter flat suction cups handle a 10 kg steel plate on a pick-and-place unit. The cups are mounted horizontally on top of the plate, and the unit lifts vertically at 0.5 g acceleration and moves horizontally at 0.5 g.
510 words, about 3 min4Proportional Valve Creep at Zero Command
A hydraulic axis uses a 0-10 V proportional directional valve and amplifier; 10 V commands 100% rated flow. The valve datasheet lists 8% deadband and 2% hysteresis.
512 words, about 3 min5Overheating Die-Caster: Cooler or Internal Leakage?
A die-cast machine has a 25 gpm pressure-compensated pump, a relief valve set at 2,200 psi, a 100 gal reservoir, and an air-blast oil cooler rated 25 hp at a 40 deg F oil-to-air temperature difference. After two hours the oil reaches 170 deg F with 95 deg F ambient.
533 words, about 3 min