Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X5B
The AirTAC Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X5B is a genuine single acting, push (spring return) ISO 21287 compact air cylinder with a Ø25mm bore and 5mm 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
- Stroke5 mm
- Port sizeM5×0.8
- Acting typeSingle acting, push (spring return)
- Rod threadM6×1.0
- CushionFixed TPU bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X5B
This AirTAC ASE25X5B is a single acting push cylinder with spring return, delivering a net push force of 210.1 N at 0.5 MPa and 308.3 N at 0.7 MPa. The 5 mm stroke is ideal for short, repetitive motions, and the male rod thread (B code) simplifies mounting.
Its ISO 21287 compact body is about 50% shorter than an ISO 15552 profile cylinder, fitting into tight machine guards and fixtures. For a safe working load, plan for about 126 N of real work at 0.5 MPa, which translates to lifting roughly 6 kg vertically with a 2:1 safety margin. The fixed TPU bumper at both ends absorbs end-of-stroke impact, and the hard-anodized aluminium body with S45C hard-chrome rod ensures durability.
Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X5B Technical Specifications
| Model | Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X5B |
|---|---|
| Series | ASE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø25 mm |
| Stroke | 5 mm |
| Acting type | Single acting, push (spring return) |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 500 mm/s |
| Cushion | Fixed TPU bumper (both ends) |
| Max standard stroke | Up 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)
| Pressure | Push force (spring return) |
|---|---|
| 0.5 MPa | 210.1 N |
| 0.7 MPa | 308.3 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 ASE25X5B
| ASE | ISO 21287 compact cylinder (single-acting push, spring-return). |
|---|---|
| 25 | Bore size in mm. |
| ×5 | Stroke length in mm. |
| S | Optional built-in magnet for CMSE / DMSE sensors (omit for no magnet). |
| B | Rod 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 ASE25X5B Is Used
Jig Clamping
Use the 25 mm bore and 5 mm stroke to clamp small parts in a CNC fixture, with the spring return releasing the part when air is removed.
Label Applicator
Drive a label applicator head for a quick 5 mm push onto products on a packaging line, relying on the spring to reset for the next cycle.
Valve Actuator
Actuate a small pneumatic valve or switch with a short, positive push, where the spring return ensures a fail-safe retracted state.
Is the Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X5B the Right Cylinder?
For a lighter duty, consider the ASE20X5 with a 127.4 N push at 0.5 MPa, while the ASE32X5 offers 352.5 N for heavier tasks. This 25 mm bore model balances force and size for compact automation. The spring retracts the rod on air loss, so it does not hold a mid-stroke position; ensure your circuit accounts for this. This version has no magnet, so CMSE or DMSE sensors are not compatible unless you order the optional -S magnet code.
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)
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 ASE25X5B FAQ
The ASE25X5B delivers a net push force of 210.1 N at 0.5 MPa and 308.3 N at 0.7 MPa, both figures already accounting for the return spring. The minimum working pressure is 0.2 MPa, and the proof pressure is 1.5 MPa (215 psi).
No, this version does not include a magnet, so CMSE or DMSE switches cannot be used. To enable sensor mounting, you must order the cylinder with the optional -S code, which adds the magnet for position detection.
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