Magnetic Pneumatic Cylinders for Position Sensors

A magnetic pneumatic cylinder has a permanent-magnet ring on the piston. Sensors mounted on the outside of the barrel detect the magnet, so the control system knows when the cylinder has reached a position — without mechanical limit switches.

Fenitsa's magnetic series are FMY (ISO 15552), PMB (CETOP RP 53P) and the compact FMC.

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Magnetic Pneumatic Cylinders for Position Sensors

Why Use a Magnetic Piston

  • End-position feedback for PLC sequences.
  • Intermediate positions with several sensors.
  • No external switches or cams.
  • Fault detection: a missing signal shows a stuck cylinder.

Fenitsa Magnetic Series

Per catalogue.

Fenitsa Magnetic Series
SeriesMagnetic pistonCushioningStandard
FMYYesAdjustableISO 15552
PMBYesAdjustableCETOP RP 53P
FMCYes—Compact

Sensor Tips

  • Profile bodies take sensors in their slots; round tubes use band clamps.
  • Keep strong magnetic fields (welding) away from the sensors.
  • Adjust the sensor at working temperature and speed.

Frequently Asked Questions

What is a magnetic pneumatic cylinder?

A cylinder with a magnet ring on the piston so external sensors can detect its position.

Which Fenitsa series are magnetic?

FMY, PMB and FMC; FNC is the non-magnetic compact version.

Can a non-magnetic cylinder be converted?

No — the magnet is part of the piston; order the magnetic version.

Send Us Your Cylinder Data

Bore, rod, stroke, working pressure, mountings and quantity — or a drawing or photo of the cylinder you want to replace. Our engineers reply with a technical proposal and a quotation.

Pneumatic cylinder sizesAir cylinder calculator63 mm pneumatic cylinder
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