Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X5S
The AirTAC Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X5S is a genuine single acting, push (spring return) ISO 21287 compact air cylinder with a Ø20mm bore and 5mm 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
- Stroke5 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 ASE20X5S
This AirTAC ASE20X5S is a single acting push cylinder with spring return, so air extends the 10 mm 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, and at 0.7 MPa that rises to 190.2 N, making it a compact workhorse for light indexing tasks.
The ISO 21287 body is about 50% shorter than an ISO 15552 profile cylinder, so it slides into tight jigs where a full-length unit will not fit. The optional -S magnet is fitted here, so CMSE or DMSE reed and solid-state switches can bolt onto the body for position sensing. For a safe working load, plan around 76 N (about 7.8 kg) at 0.5 MPa, not the full rating, to leave a margin for friction and side loads.
Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X5S Technical Specifications
| Model | Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X5S |
|---|---|
| Series | ASE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 5 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 ASE20X5S
| ASE | ISO 21287 compact cylinder (single-acting push, spring-return). |
|---|---|
| 20 | Bore size in mm. |
| ×5 | 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 ASE20X5S Is Used
Jig Pin Ejector
Use the 5 mm stroke to push a locating pin out of a drill jig on a benchtop press; the spring retracts the pin when air is released, clearing the part for the next cycle.
Label Tamp Head
Mount this cylinder on a small labeling machine to tamp a label onto a box flap. The 127.4 N push at 0.5 MPa is plenty for a firm press, and the short stroke keeps cycle times fast.
Small Parts Stopper
In a parts feeder, extend the rod to stop a 20 mm plastic component on a chute. The 5 mm travel is enough to block the path, and the spring retracts it to let the part pass.
Is the Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE20X5S the Right Cylinder?
For a lighter push, the 16 mm bore ASE16X25 offers 78.4 N at 0.5 MPa, while stepping up to the 25 mm bore ASE25X25 gives 210.1 N at the same pressure. This 20 mm bore sits in the middle, ideal for short 5 mm strokes on small clamps or ejectors. Since it is single acting, the spring returns the rod on air loss, but it will not hold a mid-stroke position; use a double acting ACE if you need powered retraction. The M5x0.8 port suits small solenoid valves, and the female M6x1.0 rod thread accepts standard clevis or rod-end fittings.
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 ASE20X5S 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). Operating pressure range is 0.2-1.0 MPa (28-145 psi).
This ASE20X5S includes the optional -S magnet, so you can mount CMSE or DMSE reed or solid-state switches on the body for position sensing. Without the -S code, no magnet is fitted, so sensors would not work. The fixed TPU bumper at both ends absorbs end-of-stroke impact, but it is not adjustable.
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Standard models are processed and dispatched in 3-5 business days.
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