Airtac ATE Single Acting Guided Compact Cylinder ATE50X20S
The AirTAC Airtac ATE Single Acting Guided Compact Cylinder ATE50X20S is a genuine single acting, pull (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, pull (spring return)
- Rod threadM10×1.5
- CushionFixed TPU bumper (both ends)
About the Airtac ATE Single Acting Guided Compact Cylinder ATE50X20S
This AirTAC ATE50X20S is a single acting pull cylinder with spring return, so the spring extends the rod and air retracts it. At 0.5 MPa it delivers a net pull of 775 N, and at 0.7 MPa that rises to 1127.5 N, with the spring force already subtracted.
The ISO 21287 compact body is about 50% shorter than an ISO 15552 profile cylinder, which helps it fit into tight machine frames and guarding. The optional -S magnet is fitted on this model, so CMSE or DMSE reed and solid-state switches can be mounted for position sensing. As a buyer insight, a safe working load at 0.5 MPa is roughly 465 N, which means this cylinder can lift about 47 kg vertically with a 2:1 safety margin.
Airtac ATE Single Acting Guided Compact Cylinder ATE50X20S Technical Specifications
| Model | Airtac ATE Single Acting Guided Compact Cylinder ATE50X20S |
|---|---|
| Series | ATE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø50 mm |
| Stroke | 20 mm |
| Acting type | Single acting, pull (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 | Pull force (spring return) |
|---|---|
| 0.5 MPa | 775.0 N |
| 0.7 MPa | 1127.5 N |
Single-acting pull: the spring extends the rod; air 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 ATE Single Acting Guided Compact Cylinder ATE50X20S
| ATE | ISO 21287 compact cylinder (single-acting pull, 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 ATE Single Acting Guided Compact Cylinder ATE50X20S Is Used
Jig Clamping Pull
Use the 775 N pull at 0.5 MPa to retract a clamp pin in a machining fixture, with the spring extending the pin for part release when air is off.
Conveyor Gate Retract
Mount on a packaging line to pull a diverter gate open, while the spring closes it automatically when the air supply is interrupted.
Guard Door Latch
Retract a safety guard latch on a press brake with the 1127.5 N pull at 0.7 MPa, and let the spring re-engage the latch for operator safety.
Is the Airtac ATE Single Acting Guided Compact Cylinder ATE50X20S the Right Cylinder?
For a lighter pull, the ATE32X20 delivers 296 N at 0.5 MPa, while stepping up to the ATE63X20 gives 1320 N. This 50 mm bore suits medium-duty pulling tasks where a compact envelope is needed. Note that on air loss the spring returns the rod to its extended home position, so it does not hold a mid-stroke load. Mounting options include FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot, and FTC brackets, all matching the ISO 21287 face.
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 ATE Single Acting Guided Compact Cylinder ATE50X20S FAQ
At 0.5 MPa the net pull is 775 N, and at 0.7 MPa it is 1127.5 N, both after subtracting the return spring force. Minimum working pressure is 0.2 MPa, and the proof pressure is 1.5 MPa (215 psi).
The ATE50X20S uses a short, hard-anodized aluminium body that is about 50% shorter than an ISO 15552 profile cylinder, so it fits into machine frames and guarding where a full-length cylinder would not. The fixed TPU bumper absorbs end-of-stroke impact, and the optional -S magnet allows CMSE or DMSE sensors to be mounted.
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