Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X20S
The AirTAC Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X20S is a genuine single acting, push (spring return) ISO 21287 compact air cylinder with a Ø20mm bore and 20mm 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
- Stroke20 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 ASE20X20S
This AirTAC ASE20X20S is a single acting push cylinder with spring return, so air extends the rod and the built-in spring pulls it back. At 0.5 MPa it delivers 127.4 N of push force net of the spring, which is enough to move light guards or actuate small indexing pins. The ISO 21287 compact body is about 50% shorter than an ISO 15552 profile cylinder, fitting into tight machine frames where a full-length unit will not. For a safe working load, plan on roughly 76 N (about 7.8 kg) of real work at 0.5 MPa, not the full rating, to keep a margin for friction and side loads.
The hard-anodized aluminium body and S45C hard-chrome plated rod resist wear in repetitive cycles. This model carries the optional -S magnet, so you can mount CMSE or DMSE reed or solid-state switches to confirm rod position. The fixed TPU bumper at both ends absorbs end-of-stroke impact, and the M5x0.8 port suits small-bore air lines. Minimum working pressure is 0.2 MPa, and the speed range is 50-500 mm/s.
Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X20S Technical Specifications
| Model | Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X20S |
|---|---|
| Series | ASE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 20 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 ASE20X20S
| ASE | ISO 21287 compact cylinder (single-acting push, spring-return). |
|---|---|
| 20 | Bore size in mm. |
| ×20 | 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 ASE20X20S Is Used
Small Jig Clamping
Use the ASE20X20S to clamp small plastic parts in a fixture before drilling or gluing. The 127.4 N push at 0.5 MPa holds light workpieces, and the spring retract clears the jig quickly.
Guard Door Interlock
Mount this cylinder to push a safety interlock pin into a machine guard frame. The short 20 mm stroke and compact body fit inside a slim extrusion, and the spring return releases the pin when air is removed.
Sorting Gate Divert
In a small parts sorting conveyor, the ASE20X20S can push a light flap to divert items into a separate bin. The 20 mm stroke is enough for a narrow chute, and the optional -S magnet lets a sensor confirm the flap position.
Is the Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X20S the Right Cylinder?
For a lighter duty, the ASE16X25 offers 78.4 N at 0.5 MPa, while the ASE25X25 gives 210.1 N at 0.5 MPa if you need more force in the same compact footprint. Since this is single acting, the spring returns the rod to its retracted position on air loss; it does not hold a mid-stroke load. Choose the ASE20X20S for short-stroke pushing tasks up to 20 mm, and pair it with FA/FB flange or LB foot mounts from the ISO 21287 family. The -S magnet is already fitted, so CMSE or DMSE sensors can be added directly.
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 ASE20X20S 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 operating pressure range is 0.2-1.0 MPa (28-145 psi).
The -S code means this ASE20X20S includes the optional magnet, so you can mount CMSE or DMSE reed or solid-state switches to detect rod position. Without the -S code, there is no magnet. The compact ISO 21277 body is about 50% shorter than an ISO 15552 profile cylinder, and the fixed TPU bumper absorbs end-of-stroke impact.
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