Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X5
The AirTAC Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X5 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 ASE25X5
This AirTAC ASE25X5 is a single acting, spring-return compact cylinder that extends its 10 mm rod when air is applied and retracts it with an internal spring when pressure drops. At 0.5 MPa it delivers 210.1 N of push force, net of the spring, and at 0.7 MPa it reaches 308.3 N, so it suits light clamping and indexing tasks in tight spaces.
The ISO 21287 short body takes up about 50% less mounting length than an ISO 15552 profile cylinder, which helps when fitting inside a guarded machine cell. For a safe working load, plan for roughly 126 N of real work at 0.5 MPa, which is about 12.8 kg of vertical lift with a 2:1 safety margin, so match it to a part weight under that figure.
Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X5 Technical Specifications
| Model | Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X5 |
|---|---|
| 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 ASE25X5
| 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 ASE25X5 Is Used
Fixture Clamping on a CNC Table
Use the ASE25X5 to clamp small workpieces against a fixed stop on a CNC mill table. Its 210.1 N push at 0.5 MPa holds light parts securely, and the short stroke keeps cycle times fast.
Carton Tabbing in a Packaging Line
In a carton erecting machine, this cylinder can push a tab into place before sealing. The 5 mm stroke is enough for a quick, repeatable action, and the spring return resets it without a second air line.
Gate Stop on a Conveyor
Mount the ASE25X5 as a small stop gate on a light conveyor to block or release parts. Its compact body fits under the frame, and the spring return raises the stop automatically when air is cut.
Is the Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X5 the Right Cylinder?
For a lighter push, the ASE20X5 offers 127.4 N at 0.5 MPa, while the ASE32X5 steps up to 352.5 N if you need more force in the same compact frame. Since this is a single acting push cylinder, it does not hold a mid-stroke position; the spring always returns the rod to retracted on air loss, so use it for simple extend-and-release actions, not for holding loads.
This model has no magnet, so it cannot trigger CMSE or DMSE sensors. If you need position sensing, order the ASE25X5S variant with the optional -S magnet. Mounting options include FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot, and FTC brackets, all compatible with the ISO 21287 face.
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 ASE25X5 FAQ
At 0.5 MPa the push force 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 proof pressure is 1.5 MPa (215 psi). Operating pressure range is 0.2-1.0 MPa (28-145 psi).
No, this model has no magnet, so it cannot work with CMSE or DMSE switches. You would need to order the ASE25X5S version, which includes the optional -S magnet. The cylinder itself has a fixed TPU bumper at both ends, not an adjustable cushion, and the body is a compact ISO 21277 design that is about 50% shorter than an ISO 15552 profile cylinder.
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