Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE40X25
The AirTAC Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE40X25 is a genuine single acting, push (spring return) ISO 21287 compact air cylinder with a Ø40mm bore and 25mm stroke, 1/8" 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.
- BoreØ40 mm
- Stroke25 mm
- Port size1/8"
- Acting typeSingle acting, push (spring return)
- Rod threadM8×1.25
- 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 ASE40X25
This AirTAC ASE40X25 is a compact ISO 21287 single-acting push cylinder with spring return, delivering a net push force of 556.8 N at 0.5 MPa. Its short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, fitting into tight machine guards and jigs where a full-length cylinder will not fit.
The hard-anodized aluminium body and S45C hard-chrome plated rod resist wear in continuous cycling. With a 25 mm stroke, it suits short-travel applications, and the fixed TPU bumper absorbs end-of-stroke impact. For a safe working load, plan for about 334 N (34 kg) of real work at 0.5 MPa, not the full rating, to account for dynamic loads and friction.
Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE40X25 Technical Specifications
| Model | Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE40X25 |
|---|---|
| Series | ASE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø40 mm |
| Stroke | 25 mm |
| Acting type | Single acting, push (spring return) |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 (Ø40mm)
| Pressure | Push force (spring return) |
|---|---|
| 0.5 MPa | 556.8 N |
| 0.7 MPa | 808.1 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 ASE40X25
| ASE | ISO 21287 compact cylinder (single-acting push, spring-return). |
|---|---|
| 40 | 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 ASE40X25 Is Used
Jig Clamping
Use in a drilling jig to clamp a small part with 556.8 N force at 0.5 MPa, then spring-retract for quick part changeover.
Carton Tabbing
Drive a tab-folding mechanism on a packaging line, where the 25 mm stroke and compact body fit inside the machine frame.
Guard Door Interlock
Actuate a safety guard latch on a small press, relying on the spring return to retract the rod when air is removed.
Is the Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE40X25 the Right Cylinder?
Choose the ASE40X25 when you need a compact, single-acting push with spring return and a 25 mm stroke. For lighter duty, the ASE32X25 offers 352.5 N at 0.5 MPa; for heavier, the ASE50X25 provides 875.5 N. This model uses a 1/8" port and has a female M8x1.25 rod thread. The spring retracts the rod on air loss, so it does not hold a mid-stroke position. Order with the optional -S magnet if you need CMSE or DMSE sensor feedback.
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 ASE40X25 FAQ
The ASE40X25 provides a net push force of 556.8 N at 0.5 MPa and 808.1 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).
Only if you order the optional -S magnet. Without the -S code, this cylinder has no magnet, so CMSE or DMSE switches cannot be used. The fixed TPU bumper at both ends absorbs impact, and the compact ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder.
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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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