Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X25
The AirTAC Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X25 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 ASE20X25
The ASE20X25 is a single acting push cylinder with spring return: air extends the 10 mm rod and the internal spring retracts it, so one air line is all the machine needs. At 0.5 MPa it delivers 127.4 N of push force net of the spring (190.2 N at 0.7 MPa), and it needs only 0.2 MPa (28-145 psi operating band) to overcome the spring and start moving. Its ISO 21287 compact body cuts mounting length by roughly 50% versus an ISO 15552 profile cylinder, which is why it slots into slim pick-and-place heads and guarded assemblies where a full-length body will not fit.
Practical sizing: treat about 76 N as the usable working force at 0.5 MPa, which corresponds to lifting roughly 6 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries magnet slots, and ordering the optional -S code adds the magnet that lets CMSE / DMSE switches report end positions; without -S there is no magnet. A fixed TPU bumper at each end absorbs end-of-stroke shock, and FA/FB flange, LB foot, CA/CB clevis, CR, SDB or FTC mounts bolt straight to the ISO 21287 face.
Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X25 Technical Specifications
| Model | Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X25 |
|---|---|
| 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 ASE20X25
| 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 ASE20X25 Is Used
Fixture clamp for small CNC parts
127.4 N of net push at 0.5 MPa is enough to seat aluminium brackets against a CNC locating stop, and the spring retracts the clamp automatically when the air drops.
Ejector on a packaging line
The 25 mm stroke kicks light cartons or blisters off a conveyor lane, and the compact body fits between guard rails where a longer cylinder cannot.
Sample lift in lab automation
With about 6 kg of vertical lift capacity at a 2:1 margin, it raises microplate stacks or reagent trays in compact analyzers, one air line only.
Is the Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X25 the Right Cylinder?
Compare by net push at 0.5 MPa: the 16 mm bore gives 78.4 N, this 20 mm bore gives 127.4 N, and stepping up to 25 mm raises it to 210.1 N. Pick the 20 mm when your part weight or clamp duty sits between those bands and the 25 mm stroke is enough travel. The spring returns the rod to its retracted home whenever air is lost, so it will not hold a mid-stroke position under load. Match the port to your manifold: M5x0.8 on this bore, female M6x1.0 rod thread as standard (order the B code for male thread), and add -S only if you need CMSE / DMSE sensing.
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 ASE20X25 FAQ
Push force is 127.4 N at 0.5 MPa and 190.2 N at 0.7 MPa, both already net of the return spring. Working pressure is 0.2-1.0 MPa (28-145 psi), proof pressure 1.5 MPa (215 psi), speed 50-500 mm/s, temperature -20 to +70 C, air filtered to 40 um. Stroke is 25 mm on a 20 mm bore with a 10 mm rod and M5x0.8 port.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/FB, LB, CA/CB, CR, SDB or FTC brackets bolt directly to its face. A fixed TPU bumper at each end absorbs end-of-stroke impact. On air loss the spring drives the rod back to the retracted home position; it does not hold a mid-stroke load. Add the optional -S magnet if you want CMSE / DMSE switch 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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