Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE50X20B
The AirTAC Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE50X20B is a genuine single acting, push (spring return) ISO 21287 compact air cylinder with a Ø50mm bore and 20mm stroke, 1/8" 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.
- BoreØ50 mm
- Stroke20 mm
- Port size1/8"
- Acting typeSingle acting, push (spring return)
- Rod threadM10×1.5
- 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 ASE50X20B
This AirTAC ASE50X20B is a single acting, spring-return compact cylinder that pushes with 875.5 N at 0.5 MPa, net of the return spring. The 50 mm bore and 20 mm stroke suit short-stroke clamping and ejection tasks where a compact package is essential.
Its ISO 21287 body is about 50% shorter than an ISO 15552 profile cylinder, so it fits into tight machine guards and fixtures. The hard-anodized aluminium body and hard-chrome S45C rod resist wear, while the fixed TPU bumper absorbs end-of-stroke impact. For a safe working load, plan for about 525 N of real work at 0.5 MPa, or roughly 54 kg of vertical lift with a 2:1 margin.
Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE50X20B Technical Specifications
| Model | Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE50X20B |
|---|---|
| Series | ASE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push (spring return) |
| Port size | 1/8" |
| Rod thread | M10×1.5 |
| 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 (Ø50mm)
| Pressure | Push force (spring return) |
|---|---|
| 0.5 MPa | 875.5 N |
| 0.7 MPa | 1268.2 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 ASE50X20B
| ASE | ISO 21287 compact cylinder (single-acting push, spring-return). |
|---|---|
| 50 | 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 ASE50X20B Is Used
Jig Clamping
Use the 875.5 N push to clamp small parts in a CNC fixture, with the spring retracting the rod when air is released. The short body fits under a workholding plate.
Carton Ejection
Eject lightweight cartons from a forming station with a 20 mm stroke. The spring return resets the pusher without a second air line, simplifying the control circuit.
Guard Door Latch
Actuate a safety guard latch on a small assembly machine. The compact body mounts in tight spaces, and the spring holds the latch retracted when air is off.
Is the Airtac ASE Single Acting Plunger Type Compact Air Cylinder ASE50X20B the Right Cylinder?
Choose this ASE50X20B when you need a single-acting push with spring return in a short envelope. For lighter duty, the ASE32X25 offers 352.5 N at 0.5 MPa, while the ASE63X25 provides 1420.5 N for heavier pushes. This model has a male rod thread (B code) and a 1/8" port. Since it lacks the optional -S magnet, no CMSE or DMSE sensor can be mounted; order the -S version if you need position 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 ASE50X20B FAQ
At 0.5 MPa, the push force is 875.5 N, and at 0.7 MPa it is 1268.2 N. These values are net of the return spring, so they are the usable forces. The minimum working pressure is 0.2 MPa, and the proof pressure is 1.5 MPa (215 psi).
No, this ASE50X20B does not have the optional -S magnet, so CMSE or DMSE switches cannot be mounted. The magnet is only available when you order the -S code. The cylinder has a fixed TPU bumper at both ends for impact absorption, not an adjustable cushion.
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