Airtac ATE Single Acting Guided Compact Cylinder ATE20X25SB
The AirTAC Airtac ATE Single Acting Guided Compact Cylinder ATE20X25SB is a genuine single acting, pull (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, pull (spring return)
- Rod threadM6×1.0
- CushionFixed TPU bumper (both ends)
About the Airtac ATE Single Acting Guided Compact Cylinder ATE20X25SB
This AirTAC ATE20X25SB is a single acting pull cylinder where the internal spring extends the rod and air pressure retracts it, with forces already net of the spring. At 0.5 MPa it delivers 88.1 N of pull, which translates to a safe working load of about 5 kg for real applications. Its ISO 21287 compact body is roughly 50% shorter than an ISO 15552 profile cylinder, making it a fit for tight guarding and tooling spaces. The male rod thread (B code) and the included -S magnet for CMSE/DMSE sensors are ready for immediate integration.
The hard-anodized aluminium body and S45C hard-chrome plated rod resist wear in continuous cycling. With a fixed TPU bumper at both ends, it handles speeds from 50 to 500 mm/s and operates on air filtered to 40 um. The minimum working pressure is 0.2 MPa, and the proof pressure is 1.5 MPa (215 psi). This compact unit suits applications where a full-length cylinder cannot fit.
Airtac ATE Single Acting Guided Compact Cylinder ATE20X25SB Technical Specifications
| Model | Airtac ATE Single Acting Guided Compact Cylinder ATE20X25SB |
|---|---|
| Series | ATE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 25 mm |
| Acting type | Single acting, pull (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 | Pull force (spring return) |
|---|---|
| 0.5 MPa | 88.1 N |
| 0.7 MPa | 135.2 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 ATE20X25SB
| ATE | ISO 21287 compact cylinder (single-acting pull, 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 ATE Single Acting Guided Compact Cylinder ATE20X25SB Is Used
Jig Clamping
Use the 88.1 N pull to retract a locating pin in a CNC fixture, with the spring extending it to lock the part when air is off.
Label Applicator
Retract a label tamp head at 0.5 MPa in a compact packaging line, where the short body fits between existing guide rails.
Small Gate Actuator
Pull a small safety gate closed on a machine guard, with the spring returning it to the open position when power is lost.
Is the Airtac ATE Single Acting Guided Compact Cylinder ATE20X25SB the Right Cylinder?
For a lighter pull, the ATE16X25 offers 53.3 N at 0.5 MPa, while stepping up to the ATE25X25 provides 170.9 N at the same pressure. Since this is a spring-extend cylinder, it returns to the extended position on air loss and does not hold a mid-stroke load. The M5x0.8 port and the male rod thread simplify connection, and the optional -S magnet is already fitted for sensor feedback.
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 ATE20X25SB FAQ
The ATE20X25SB provides 88.1 N of pull at 0.5 MPa and 135.2 N at 0.7 MPa, 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 short body saves about 50% of the mounting length compared to an ISO 15552 profile cylinder, allowing installation in tight spaces. It also features a fixed TPU bumper at both ends for noise reduction, and the included -S magnet enables position sensing with CMSE or DMSE switches.
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