Pneumatic Cylinder Selection: Bore Size, Stroke and Operating Pressure

Application and selection overview

Select pneumatic cylinders by bore, stroke, mounting, speed and operating pressure.

Item	Information to provide
Bore and force	Load, movement direction, supply pressure, friction and required safety factor.
Stroke and dimensions	Working stroke, overall length, extension space, rod diameter and anti-rotation need.
Mounting	Foot, trunnion, flange, clevis or compact mounting, plus external load guidance.
Speed and cushioning	Target speed, cycle rate, end cushioning, flow control and impact.
Ports and environment	Port size, switches, temperature, dust, washdown, corrosion and food-grade needs.

Provide the complete model, label and installed-position photographs.
State load mass, movement direction, stroke, travel time and actual air pressure.
List mountings, fittings, valve, magnetic switches and cable requirements.
Confirm available space, rod-end thread and port orientation.

Selecting the smallest bore from theoretical force and ignoring friction, shock or pressure drop.
Matching stroke while overlooking mounting dimensions, rod end or port position.
Running a fast heavy load without suitable cushioning and external guidance.

Start with effective pressure and required force, then account for friction, direction, safety factor, speed and manufacturer performance data.

Mounting centers, total length, rod end, ports, switch slots and cushioning must also match.

External guidance or a guided cylinder is usually required to prevent premature rod and seal wear.

Send the brand, full model, bore, stroke, mounting, actual pressure, load, speed, accessories, quantity and destination.

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