Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X25SB
The AirTAC Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X25SB is a genuine single acting, push (spring return) ISO 21287 compact air cylinder with a Ø20mm 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.
- BoreØ20 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 ASE20X25SB
This AirTAC ASE20X25SB is a single acting push cylinder with spring return, so air extends the rod and the built-in spring pulls it back, needing just one air line. It delivers 127.4 N of push force at 0.5 MPa, net of the return spring, and 190.2 N at 0.7 MPa, with a minimum working pressure of 0.2 MPa.
The ISO 21287 compact body is about 50% shorter than an ISO 15552 profile cylinder, so it fits into tight jigs and guards where a full-length unit will not. The optional -S magnet is fitted here, enabling CMSE or DMSE switches for position sensing, and the male rod thread (B) simplifies mounting with rod-end accessories.
Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X25SB Technical Specifications
| Model | Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X25SB |
|---|---|
| Series | ASE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 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 (Ø20mm)
| Pressure | Push force (spring return) |
|---|---|
| 0.5 MPa | 127.4 N |
| 0.7 MPa | 190.2 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 ASE20X25SB
| ASE | ISO 21287 compact cylinder (single-acting push, spring-return). |
|---|---|
| 20 | 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 ASE20X25SB Is Used
Fixture Clamping
Use the 127.4 N push at 0.5 MPa to clamp small plastic parts in a CNC fixture, with the spring return clearing the work area quickly after each cycle.
Label Applicator
Drive a label applicator head on a packaging line, where the 25 mm stroke pushes a label onto a carton and the spring retracts for the next product.
Guard Door Lock
Actuate a small safety guard lock on a machine, using the compact body to fit inside a slim profile and the spring to keep the guard closed when air is off.
Is the Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X25SB the Right Cylinder?
For a lighter duty, the 16 mm bore gives 78.4 N at 0.5 MPa, while stepping up to 25 mm bore raises the push to 210.1 N at the same pressure. This 20 mm bore with a 25 mm stroke suits short-travel indexing or clamping tasks, but remember the spring only retracts the rod, it does not hold a mid-stroke position. Choose the FA or FB flange, LB foot, or CA/CB clevis brackets to match your fixture, and order the -S magnet version 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 ASE20X25SB FAQ
At 0.5 MPa, the push force is 127.4 N, and at 0.7 MPa it is 190.2 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).
The body is about 50% shorter than an ISO 15552 profile cylinder, so it fits into narrow machine frames. The fixed TPU bumper at both ends absorbs end-of-stroke impact, and the optional -S magnet allows CMSE or DMSE sensor mounting for position feedback.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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