Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X25
The AirTAC Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X25 is a genuine single acting, push (spring return) ISO 21287 compact air cylinder with a Ø25mm bore and 25mm 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
- Stroke25 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 ASE25X25
This AirTAC ASE25X25 is a single acting, spring-return compact cylinder, meaning air extends the rod and the return spring retracts it, needing only one air line. With a 25 mm bore, it delivers a net push force of 210.1 N at 0.5 MPa and 308.3 N at 0.7 MPa, already accounting for the spring resistance, so you can size it directly. Its ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, fitting into tight jigs and guards where a full-length cylinder won't. The hard-anodized aluminium body and S45C hard-chrome rod resist wear, while a fixed TPU bumper at both ends absorbs end-of-stroke impact.
For practical sizing, plan for about 126 N of real work at 0.5 MPa, not the full rating, which translates to lifting about 12.8 kg vertically with a 2:1 safety margin. This model has no magnet fitted, so it cannot accept CMSE or DMSE sensors unless you order the optional -S version. The M5x0.8 port and female M6x1.0 rod thread are standard, and it operates from 0.2 MPa minimum pressure up to 1.0 MPa (28-145 psi).
Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X25 Technical Specifications
| Model | Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X25 |
|---|---|
| Series | ASE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø25 mm |
| Stroke | 25 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 ASE25X25
| ASE | ISO 21287 compact cylinder (single-acting push, spring-return). |
|---|---|
| 25 | Bore size in mm. |
| ×25 | 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 ASE25X25 Is Used
Jig Clamping on CNC Fixtures
Use the ASE25X25 to clamp small parts in a CNC milling fixture, where its 210.1 N push at 0.5 MPa holds components securely and the compact body fits under the spindle guard.
Carton Tabbing in Packaging Lines
In a carton erecting machine, this cylinder pushes a tab into place on each box, with the spring return resetting quickly for the next cycle at speeds up to 500 mm/s.
Sorting Gate on a Light Conveyor
Mount the ASE25X25 to divert lightweight parcels on a conveyor, where its short stroke and 25 mm bore provide the push to redirect items without taking up excessive line space.
Is the Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X25 the Right Cylinder?
When selecting between bore sizes, note that the ASE20X25 offers a lower 127.4 N push at 0.5 MPa, while the ASE32X25 steps up to 352.5 N, so this 25 mm bore suits light to medium loads. Since it is single acting, the spring returns the rod to its home position on air loss; it does not hold an intermediate position, so avoid using it as a brake. For mounting, choose from FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot, or FTC brackets, all compatible with the ISO 21287 face. If you need position sensing, order the -S code to add the magnet for CMSE or DMSE switches; without it, no sensor can be mounted.
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 ASE25X25 FAQ
The ASE25X25 delivers a net push force of 210.1 N at 0.5 MPa and 308.3 N at 0.7 MPa, both already accounting for the return spring. The minimum working pressure is 0.2 MPa, and the proof pressure is 1.5 MPa (215 psi).
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, making it ideal for tight spaces. It uses a fixed TPU bumper at both ends to absorb impact, and you can mount it with FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot, or FTC brackets. For sensing, order the optional -S magnet to use CMSE or DMSE switches.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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