Airtac ATE Single Acting Guided Compact Cylinder ATE25X20
The AirTAC Airtac ATE Single Acting Guided Compact Cylinder ATE25X20 is a genuine single acting, pull (spring return) ISO 21287 compact air cylinder with a Ø25mm 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.
- BoreØ25 mm
- Stroke20 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 ATE25X20
This AirTAC ATE25X20 is a single acting pull cylinder with spring return, so the spring extends the rod and air retracts it. It delivers a net pull of 170.9 N at 0.5 MPa and 253.3 N at 0.7 MPa, with a minimum working pressure of 0.2 MPa to overcome the spring.
The ISO 21287 compact body is about 50% shorter than an ISO 15552 profile cylinder, making it ideal for tight machine guarding. At 0.5 MPa, a safe working load is roughly 103 N, which translates to lifting about 10 kg vertically with a 2:1 safety margin. The hard-anodized aluminium body and S45C hard-chrome rod resist wear in continuous cycling.
Airtac ATE Single Acting Guided Compact Cylinder ATE25X20 Technical Specifications
| Model | Airtac ATE Single Acting Guided Compact Cylinder ATE25X20 |
|---|---|
| Series | ATE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø25 mm |
| Stroke | 20 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 (Ø25mm)
| Pressure | Pull force (spring return) |
|---|---|
| 0.5 MPa | 170.9 N |
| 0.7 MPa | 253.3 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 ATE25X20
| ATE | ISO 21287 compact cylinder (single-acting pull, spring-return). |
|---|---|
| 25 | 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 ATE25X20 Is Used
Jig Clamping
Use the ATE25X20 to pull a locating pin or clamp arm in a CNC fixture. The 170.9 N pull at 0.5 MPa is enough to secure small parts, and the compact body fits under a workholding table.
Sorting Gate
In a parcel sorting line, this cylinder retracts a diverter flap to route packages. The spring extends the flap to the default position when air is off, ensuring a fail-safe path for lightweight cartons.
Label Applicator
Mount the ATE25X20 in a labeling machine to pull a vacuum cup or tamp pad back after applying a label. Its 20 mm stroke is ideal for short, repetitive motions at speeds up to 500 mm/s.
Is the Airtac ATE Single Acting Guided Compact Cylinder ATE25X20 the Right Cylinder?
For a lighter duty, the ATE20X20 offers 88.1 N pull at 0.5 MPa, while moving up to the ATE32X25 provides 296.0 N at the same pressure. This 25 mm bore suits applications needing a compact, spring-extend action with moderate pull force. Remember, the spring returns the rod to its extended position on air loss, so it does not hold a mid-stroke position. Mounting options include FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot, and FTC brackets.
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 ATE25X20 FAQ
The ATE25X20 provides a net pull force of 170.9 N at 0.5 MPa and 253.3 N at 0.7 MPa, with the spring force already subtracted. The minimum working pressure is 0.2 MPa, the proof pressure is 1.5 MPa (215 psi), and the operating pressure range is 0.2-1.0 MPa (28-145 psi).
This specific model has no magnet, so it cannot be used with CMSE or DMSE switches. To enable sensor mounting, you must order the ATE25X20S variant, which includes the optional -S magnet. The cylinder uses a fixed TPU bumper at both ends for deceleration.
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