Roll-to-Roll Converting & Web Dynamics
Roll-to-Roll (R2R) Web Handling & Air Flotation Dryer Calculator
Calculate web span tensile stress ($\sigma_{\text{web}}$), catenary sag deflection ($\delta_{\text{sag}}$), critical shear wrinkle strain ($\epsilon_{\text{crit}}$), air flotation impingement heat transfer ($h_c$), and hydrodynamic air cushion lift pressure.
Web Substrate & Dryer Line Parameters
Cross-web width of the continuous flexible moving substrate.
Substrate caliper thickness (microns).
Tension applied by load cells / dancer pneumatic cylinders.
Distance between supporting air flotation bars or idler rollers.
Air velocity exiting top/bottom sinusoidal flotation nozzle slots.
Non-contact clearance between web and air bar surface.
Web Stability & Flotation Thermodynamics
Web Span Stress ($\sigma$)
--MPa
Catenary Sag ($\delta_{\text{sag}}$)
--mm
Critical Wrinkle Strain
--µε
Heat Transfer Coeff ($h_c$)
--W/m²K
Air Cushion Lift Pressure
--Pa
Unit Tension ($T/W$)
--N/m
Web Handling Status: STABLE FLOTATION (No touch-down risk)
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Review complete web guide edge-sensor tracking alignment targets, air bar nozzle slot geometries, and dancer arm flexures.
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