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AirTAC ASE Series · ISO 21287 Compact Cylinder

Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X10B

The AirTAC Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X10B is a genuine single acting, push (spring return) ISO 21287 compact air cylinder with a Ø25mm bore and 10mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. Its short compact envelope saves about 50% of the mounting length of an ISO 15552 profile cylinder.

  • BoreØ25 mm
  • Stroke10 mm
  • Port sizeM5×0.8
  • Acting typeSingle acting, push (spring return)
  • Rod threadM6×1.0
  • CushionFixed TPU bumper (both ends)
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About the Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X10B

This AirTAC ASE25X10B is a single acting push cylinder with spring return, built to ISO 21287 compact dimensions. It delivers 210.1 N of push force at 0.5 MPa, which is already net of the return spring, and needs a minimum of 0.2 MPa to overcome that spring. The hard-anodized aluminium body is about 50% shorter than an ISO 15552 profile cylinder, so it fits into tight machine guarding and jig assemblies where space is at a premium.

At 0.5 MPa, a safe working rule is to plan for about 60% of the rated force, which is roughly 126 N for real applications. That translates to lifting about 13 kg vertically with a 2:1 safety margin, helping you match it to an actual part weight. The male rod thread (B code) simplifies direct coupling to a load, and the fixed TPU bumper at both ends absorbs end-of-stroke energy without adjustment.

Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X10B Technical Specifications

ModelAirtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X10B
SeriesASE compact cylinder
StandardISO 21287
Bore sizeØ25 mm
Stroke10 mm
Acting typeSingle acting, push (spring return)
Port sizeM5×0.8
Rod threadM6×1.0
FluidAir (filtered by 40µm element)
Operating pressure0.2 – 1.0 MPa
Proof pressure1.5 MPa
Temperature-20 to +70 °C
Speed range50 – 500 mm/s
CushionFixed TPU bumper (both ends)
Max standard strokeUp to 25 mm

Specifications follow the official AirTAC ACE-series (ISO 21287) datasheet. Body: hard-anodized aluminium alloy; piston rod: S45C carbon steel with hard-chrome plating. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G. A built-in magnet is OPTIONAL — add the -S code to fit CMSE / DMSE position sensors.

Theoretical Output Force (Ø25mm)

PressurePush force (spring return)
0.5 MPa210.1 N
0.7 MPa308.3 N

Single-acting push: air extends the rod; the return spring retracts it. Forces already net the spring; minimum working pressure is 0.2 MPa. Single-acting strokes are short (Ø12 to 10 mm, Ø16-100 to 25 mm).

Model Code: Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X10B

ASEISO 21287 compact cylinder (single-acting push, spring-return).
25Bore size in mm.
×10Stroke length in mm.
SOptional built-in magnet for CMSE / DMSE sensors (omit for no magnet).
BRod type: B = male thread; blank = female thread.

ACE-family variants: ACE (double acting), ASE / ATE (single acting push / pull), ACED (double rod), ACEJ (adjustable stroke), TACE / TACED (non-rotating twin-guide yoke). Mounting accessories: FA / FB flange, LB foot, CA / CB clevis, CR, SDB pivot, FTC; plus I and Y knuckles. Thread PT (blank) / G.

Where the Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X10B Is Used

precision_manufacturing

Jig Clamping

Use in a drill jig to push a locating pin into a workpiece before machining. The 10 mm stroke and 210.1 N force at 0.5 MPa are enough to hold small parts in place, and the compact body fits under a worktable.

packaging

Label Applicator

Mount on a packaging line to extend a label applicator head toward a passing carton. The spring return retracts the head after each cycle, and the short stroke keeps cycle times fast in a confined space.

handyman

Guard Door Interlock

Fit to a machine guard to push a latch bolt into a receiver when air is applied. The spring retracts the bolt when air is removed, allowing the guard to open, and the TPU bumper prevents end-of-stroke shock.

Is the Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X10B the Right Cylinder?

When sizing, compare this 25 mm bore against the 20 mm bore, which produces 127.4 N at 0.5 MPa, or step up to the 32 mm bore for 352.5 N at the same pressure. This model suits light pushing tasks where the spring return is acceptable and you do not need to hold a mid-stroke position, since the spring drives the rod home on air loss. The M5x0.8 port is standard for this bore size, and the male rod thread allows direct mounting of a fixture. Since this unit has no optional -S magnet, it cannot accept CMSE or DMSE sensors; order the -S variant if you need position sensing.

Quick checklist

  • ✓ Required force at your working pressure
  • ✓ Short stroke fits the compact body
  • ✓ Port/thread type (PT / G)
  • ✓ Add -S if you need the magnet for sensors
  • ✓ Rod type (female / male B) & mount (FA/LB/CA)
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Installation & Maintenance Notes

  • check Use clean air filtered to 40µm or finer.
  • check Keep within 0.2 – 1.0 MPa operating pressure.
  • check Compact body: keep the stroke short and avoid side load on the rod.
  • check Do not dismantle the threaded front/back covers.
  • check Single-acting: do not force the rod against the spring.
  • check Installation by qualified personnel per AirTAC docs.

Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X10B FAQ

The push force at 0.5 MPa is 210.1 N and at 0.7 MPa it is 308.3 N, both net of the return spring. The minimum working pressure is 0.2 MPa and the maximum is 1.0 MPa (145 psi). Proof pressure is 1.5 MPa (215 psi), and the operating speed range is 50-500 mm/s.

The short body saves about 50% of the mounting length compared to an ISO 15552 profile cylinder, making it ideal for tight jigs and guards. It has a hard-anodized aluminium body and a fixed TPU bumper at both ends. This model has no optional -S magnet, so CMSE or DMSE sensors cannot be fitted unless you order the -S variant.

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