Airtac ATE Single Acting Guided Compact Cylinder ATE20X25
The AirTAC Airtac ATE Single Acting Guided Compact Cylinder ATE20X25 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 ATE20X25
This AirTAC ATE20X25 is a single acting pull cylinder with a spring return, so the spring extends the rod and air retracts it. With a 20 mm bore, it delivers 88.1 N of pull at 0.5 MPa, net of the return spring, making it suitable for light clamping or retracting tasks.
The ISO 21287 compact body is about 50% shorter than an ISO 15552 profile cylinder, which helps it fit into tight machine guards or gantries. At 0.5 MPa, a safe working load is roughly 53 N, or about 5.4 kg vertically with a 2:1 safety margin, so you can match it to a real part weight. The M5x0.8 port keeps plumbing compact, and the hard-anodized aluminium body with a hard-chrome S45C rod resists wear in cyclic use.
Airtac ATE Single Acting Guided Compact Cylinder ATE20X25 Technical Specifications
| Model | Airtac ATE Single Acting Guided Compact Cylinder ATE20X25 |
|---|---|
| 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 ATE20X25
| 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 ATE20X25 Is Used
Tight Jig Retraction
Use the ATE20X25 to retract a locating pin in a CNC fixture where the ISO 21287 short body fits between the vise and the machine table. The 88.1 N pull at 0.5 MPa is enough to clear a small dowel, and the spring extends it back for the next part.
Label Applicator Tensioner
In a carton labeling line, this cylinder pulls a dancer arm to keep film taut between indexing rollers. The 25 mm stroke matches the take-up range, and the compact body mounts behind the guide rail without protruding into the operator aisle.
Guard Door Latch
Mount the ATE20X25 on a light machine guard to retract a spring-loaded latch bolt. Air pulls the bolt clear for access, and the spring re-engages it when pressure is removed, giving a fail-safe closed position at rest.
Is the Airtac ATE Single Acting Guided Compact Cylinder ATE20X25 the Right Cylinder?
Choose the ATE20X25 when you need a short-stroke pull action in a confined space. For a lighter pull, the ATE16 offers 53.3 N at 0.5 MPa, while stepping up to the ATE25 gives 170.9 N at the same pressure, so you can scale force without changing your mounting pattern. Since the spring extends the rod at rest, it does not hold a mid-stroke position on air loss; it returns to the extended home position. The optional -S magnet is not fitted here, so no CMSE or DMSE sensor can be mounted unless you order that code.
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 ATE20X25 FAQ
The ATE20X25 delivers 88.1 N of pull at 0.5 MPa and 135.2 N at 0.7 MPa, both net of the return spring. Minimum working pressure is 0.2 MPa, and the proof pressure is 1.5 MPa (215 psi). The port is M5x0.8, and the rod is 10 mm with a female M6x1.0 thread.
The ATE20X25 uses an ISO 21287 compact body that saves about 50% of the mounting length of an ISO 15552 profile cylinder. This lets you install it in tight jigs or gantries where a full-length cylinder would not fit. The fixed TPU bumper at both ends absorbs end-of-stroke impact, and the optional -S magnet is required for CMSE or DMSE sensors.
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