Dynamic Seal Hysteresis: How Friction Lags Affect Precision PositioningDiagnose dynamic seal hysteresis with dual-chamber pressure, position and velocity data; a 2026 study tested three pneumatic cylinders under stick-slip.→Blog Author
Jack Chen
Hello, I'm Jack, a Bepto Pneumatic pneumatics engineer. I help review cylinder sizing, rodless replacement details, stroke, guides, mounting, seals, and load direction.
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Articles by Jack Chen
179 articles sorted newest first for readers who want one author's pneumatic selection notes in one place.
Energized Seals: Using Spring Loaders for Low-Pressure Cylinder SealingParker’s FBC-V seal is rated to 3,000 psi at up to 0.5 m/s in specified glands. Learn when spring energizers fit low-pressure cylinders and how to validate.→
Pneumatic Cushioning Physics: Modeling the Ideal Gas Law in Compression ChambersLearn when pV^n can model a pneumatic cushion, why needle exhaust requires an open-system model, and how to validate pressure and stopping force.→
Calculating Kinetic Energy Absorption Limits for Internal Air CushionsCalculate internal cushion demand and compare it with model-specific limits: SMC CA2 air-cushion ratings range from 2.8 to 29 J across five bore sizes.→
The “Bounce” Effect: Over-Cushioning Dynamics in Pneumatic CylindersSMC RLQ cylinders list 0.15 to 0.77 J allowable kinetic energy. Learn to diagnose pneumatic over-cushioning, tune the needle, and verify each stop safely.→
Shock Absorber Damping Coefficients: Tuning for Variable Cylinder LoadsLearn why shock absorber tuning needs 5 application inputs, not a guessed damping coefficient, and how to test variable cylinder loads without hard impact.→
Elastomer Bumpers vs. Air Cushions: A Frequency Response AnalysisCompare elastomer bumpers and air cushions using 5 measured response signals: impact energy, peak force, rebound, settling time, and temperature in service.→
Repeatability vs. Accuracy: Defining Pneumatic Cylinder Positioning CapabilitiesLearn how to separate repeatability, position error, resolution, linearity, and running accuracy, then build a defensible pneumatic cylinder acceptance test.→
Load Mass vs. Velocity: Plotting the Cushioning Capacity ChartPlot a cushioning capacity chart correctly using total moving mass and speed at cushion entry, then screen the exact cylinder model and operating case.→