Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X15S
The AirTAC Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X15S is a genuine single acting, push (spring return) ISO 21287 compact air cylinder with a Ø25mm bore and 15mm 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
- Stroke15 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 ASE25X15S
This AirTAC ASE25X15S is a single acting push cylinder with spring return, so air extends the rod and the built-in spring pulls it back. At 0.5 MPa it delivers 210.1 N of push force, net of the spring, which suits light clamping and positioning tasks in tight spaces.
The ISO 21287 compact body is about 50% shorter than an ISO 15552 profile cylinder, so it fits inside machine guards and narrow jigs. With the optional -S magnet fitted, CMSE or DMSE switches can track the piston, and the fixed TPU bumper at both ends softens the stop. For a safe working load, plan on about 126 N (roughly 13 kg) of real work at 0.5 MPa, not the full rating.
Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X15S Technical Specifications
| Model | Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X15S |
|---|---|
| Series | ASE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø25 mm |
| Stroke | 15 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 ASE25X15S
| ASE | ISO 21287 compact cylinder (single-acting push, spring-return). |
|---|---|
| 25 | Bore size in mm. |
| ×15 | 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 ASE25X15S Is Used
Jig Clamping
Use the 210.1 N push at 0.5 MPa to clamp small workpieces in a drill jig, where the short body fits under a fixture plate and the spring retracts the pin for part removal.
Guard Door Lock
Mount this cylinder on a machine guard door to push a latch into place. The spring retracts the rod when air is off, keeping the door free to open, and the TPU bumper absorbs the impact.
Parts Ejector
In a small assembly line, use the 15 mm stroke to eject a finished part from a nest. The compact body fits between conveyor rails, and the -S magnet lets a sensor confirm the eject cycle.
Is the Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X15S the Right Cylinder?
For a lighter push, the ASE20X15 offers 127.4 N at 0.5 MPa, while stepping up to the ASE32X25 gives 352.5 N if you need more force. The 15 mm stroke is within the 25 mm standard limit for this bore, so no custom order is needed. This model includes the -S magnet, so you can add CMSE or DMSE sensors for position feedback. Mount it with FA/FB flange, LB foot, CA/CB clevis, or SDB pivot brackets that bolt to the ISO 21287 face. Remember, the spring returns the rod to the retracted position on air loss, so it does not hold a mid-stroke load.
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 ASE25X15S FAQ
At 0.5 MPa, the push force is 210.1 N; at 0.7 MPa, it is 308.3 N. These values are net of the return spring, so they are what you get at the rod. The minimum working pressure is 0.2 MPa, and the proof pressure is 1.5 MPa (215 psi).
The body is about 50% shorter than an ISO 15552 profile cylinder, so it fits in confined areas like machine guards or gantries. The fixed TPU bumper at both ends reduces end-of-stroke noise, and the optional -S magnet allows CMSE or DMSE sensors for position detection.
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