
The AirTAC Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X15SB 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.
This AirTAC ASE25X15SB is a single acting push cylinder with spring return, delivering a net 210.1 N push at 0.5 MPa and 308.3 N at 0.7 MPa. Its ISO 21287 compact body is about 50% shorter than an ISO 15552 profile cylinder, fitting into tight machine guards and jigs where space is limited.
The hard-anodized aluminium body and S45C hard-chrome rod resist wear in repetitive cycles. The optional -S magnet is fitted here, so CMSE or DMSE switches can be mounted for position sensing. For a safe working load, plan for about 126 N of real work at 0.5 MPa, which lifts roughly 13 kg vertically with a 2:1 margin, matching a typical small part weight.
| Model | Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE25X15SB |
|---|---|
| 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.
| 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).
| 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.
Mount on a fixture to clamp small plastic parts during drilling. The 210.1 N push holds parts firmly, and the spring retracts the rod for quick part removal.
Use in a conveyor sorting station to divert lightweight cartons. The 15 mm stroke and 50-500 mm/s speed keep cycle times short, while the compact body fits under the conveyor frame.
Actuate a safety interlock pin on a machine guard. The spring return ensures the pin retracts when air is removed, and the TPU bumper absorbs end-of-stroke impact for quiet operation.
For lighter duty, the ASE20X15 offers 127.4 N at 0.5 MPa, while the ASE32X15 steps up to 352.5 N. This 25 mm bore with a 15 mm stroke suits short, fast indexing tasks. The spring returns the rod to home on air loss, but it does not hold a mid-stroke position, so use it for push-and-release actions. The male rod thread (B) simplifies direct coupling, and the M5x0.8 port works with standard fittings.
Quick checklist
The push force is 210.1 N at 0.5 MPa and 308.3 N at 0.7 MPa, both net of the return spring. Minimum working pressure is 0.2 MPa, and 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 noise, and the optional -S magnet allows CMSE or DMSE switch mounting for position feedback.
Genuine AirTAC parts produced by AirTAC factory.
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