Round cylinder ISO 6432

Round cylinder, single-acting

Single-acting round cylinders to ISO 6432 generate force in one direction only, with return movement provided by an integrated compression spring. The range includes Airtec cylinders series ZEM with bore diameters from 10 to 25 mm and strokes from 10 to 50 mm. Since no second compressed-air port is needed for the return stroke, pipe routing is simplified. The return spring force must be taken into account during design as it reduces the available thrust force.

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Buying guide

How to choose Round cylinder, single-acting

What matters when choosing: properties, comparison and typical applications.

Technical features

⚙ Bore 10-25 mm - strokes 10-50 mm, ZEM series, spring-return
✓ Single-side pressurised - one air port only, simpler valve control and piping
📦 ISO 6432-standardised - compatible mounting and port dimensions with double-acting ZDM types
⚡ Spring return without air supply - retraction even on air failure, increased operational safety

ZEM product overview

BoreAvailable strokesMaterial
10 mm10, 25, 40, 50 mmZinc-plated steel
12 mm10, 15, 25, 40 mmZinc-plated steel
16 mm10, 25, 40, 50 mmZinc-plated steel
20 mm10, 25, 40, 50 mmZinc-plated steel
25 mm10, 25, 40, 50 mmZinc-plated steel

Typical applications

Typical applications: Clamping, stamping and pressing operations with single-direction force requirement, pneumatic slides where spring force defines the safe position, and applications with simple 3/2-way valve control without pull-back pressure requirements.