Linear Actuator Force Calculator

Written by Great Medico

Updated September 25, 2026 •2 min read

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A calculator can remove arithmetic without removing judgment. For linear actuator force, mechanical sizing is rarely just arithmetic; ratios, efficiencies, diameters, speeds, and load paths must all refer to the same operating condition. Use the result as a transparent model of the fields on this page, not as a substitute for knowing what those fields mean.

What this calculator does

The Linear Actuator Force Calculator is a focused solver for actuator force using Actuation type, Load mass (m), Stroke length. Its job is to make the active equation and the quantities feeding it easy to inspect rather than model every possible real-world effect.

How to use it

Begin with Load mass (m), Stroke length, Stroke time, Static friction coefficient (μ), Inclination angle (θ). Do not strip the units from those values when copying them from a datasheet or measurement. Choose Actuation type so the calculation path matches your case. Once calculated, vary the most influential input slightly and confirm that the response agrees with the equation before using the number elsewhere.

How the calculation works

The page sets average actuator velocity v = stroke/time and an acceleration proxy a = 2·stroke/time². For the inclined case, force is F = m[a + gsinθ + μgcosθ]; horizontal mode sets θ to zero.

Example

Using the default example on the page (Actuation type = Inclined platform; Load mass (m) = 100 kg; Stroke length = 0.5 m; Stroke time = 5 s), the calculator returns actuator force of 523.711917 N. Use the default result as a hand-check point, then test one input at a time so an inverted ratio or unit mistake becomes obvious.

How to interpret the result

Use the actuator force for estimation and comparison within this mechanical model. A number that looks reasonable can still be wrong if a ratio is inverted or a diameter, RPM, pressure, efficiency, or force uses a different convention than the page expects.

Limitations and notes

The page uses a simple constant-time acceleration proxy and Coulomb friction. It does not model actuator geometry, screw efficiency, motor torque-speed curves, changing linkage angle, breakaway friction, duty cycle, or safety factor. Horizontal mode ignores the entered inclination angle by design.