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Red cylindrical ISO cylinder with silver end caps and mounting threads

Festo

Festo DSNU-25-40-PPS-A 559283 ISO Cylinder electrician tool

SKU CH-BQ99-S64AS MPN DSNU-25-40-PPS-A

ISO cylinder with 25 mm bore and 40 mm stroke for pneumatic automation systems

  • TypeTest Equipment
  • Color/FinishRed
  • Item Count1 pack
  • Selling UnitBox
  • Parts3 Years
  • Labor1 Year
  • ISO cylinder for standardised pneumatic systems
  • 25 mm bore suits compact automation tasks
  • 40 mm stroke provides precise linear motion
  • PPS-A cushioning reduces end-position impact
  • Red finish aids quick visual identification

Festo DSNU ISO Cylinder for electricians

The Festo DSNU-25-40-PPS-A is a compact ISO cylinder supplied new in a single pack, model 559283. It is built for electricians who need reliable linear actuation during installation, maintenance or test procedures. The red finish aids quick identification on a busy workbench or in a tool bag.

Replaces worn or mismatched pneumatic actuators

When an existing cylinder shows scoring, seal wear or inconsistent stroke, this unit restores repeatable motion without re-plumbing the circuit. The jump is worth it when downtime on a test rig or panel-build line costs more than a direct swap.

Consistent force through the full 40 mm stroke

Under sustained cycling the cylinder maintains steady extension and retraction speeds, resisting pressure decay that can stall lighter-duty alternatives. Heat build-up stays low during repeated actuation, so the tool remains ready for continuous sequence testing without cool-down pauses.

Highlights

  • ISO cylinder for standardised pneumatic systems
  • 25 mm bore suits compact automation tasks
  • 40 mm stroke provides precise linear motion
  • PPS-A cushioning reduces end-position impact
  • Red finish aids quick visual identification

Specifications

BrandFESTO
ModelDSNU-25-40-PPS-A
TypeTest Equipment
Color/FinishRed
Item Count1 pack
Selling UnitBox
Parts3 Years
Labor1 Year

Questions about this item

What mounting dimensions does the DSNU-25-40-PPS-A ISO cylinder require?

The cylinder uses a 25 mm bore and 40 mm stroke, so the mounting pattern must match those ISO dimensions for correct alignment.

Which step is often missed when installing the DSNU-25-40-PPS-A cylinder?

Installers frequently forget to verify the piston rod orientation before tightening the end caps, which can cause binding during the first actuation.

When should the seals on the DSNU-25-40-PPS-A cylinder be inspected or replaced?

Plan to inspect the seals after three years of service, as the manufacturer specifies a three-year parts coverage period for this model.

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