Airtac ATE Single Acting Guided Compact Cylinder ATE20X25B
The AirTAC Airtac ATE Single Acting Guided Compact Cylinder ATE20X25B 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 ATE20X25B
This AirTAC ATE20X25B is a single acting pull cylinder with a spring that extends the rod and air that retracts it, delivering a net pull of 88.1 N at 0.5 MPa. Its ISO 21287 compact body is about 50% shorter than an ISO 15552 profile cylinder, so it fits into tight machine guards and gantries where a full-length unit won't.
With a 20 mm bore and 25 mm stroke, this model uses a hard-anodized aluminium body and an S45C hard-chrome rod for wear resistance. The fixed TPU bumper at both ends absorbs end-of-stroke impact, and since this version has no magnet (the -S code is optional), it cannot accept CMSE or DMSE sensors as ordered.
Airtac ATE Single Acting Guided Compact Cylinder ATE20X25B Technical Specifications
| Model | Airtac ATE Single Acting Guided Compact Cylinder ATE20X25B |
|---|---|
| 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 ATE20X25B
| 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 ATE20X25B Is Used
Jig Clamping
Use in a small jig to pull a clamp arm back after a manual load step, using the 88.1 N pull at 0.5 MPa to release a part in a bench fixture.
Sorting Gate
In a compact conveyor sorting gate, this cylinder retracts a diverter paddle to route lightweight boxes, with the spring extending it to the default position when air is off.
Guard Interlock
Mount on a machine guard to pull a latch pin out of a hole, allowing the guard to open; the spring re-engages the pin when air is vented, securing the guard.
Is the Airtac ATE Single Acting Guided Compact Cylinder ATE20X25B the Right Cylinder?
For a lighter pull, consider the ATE16X25 with 53.3 N at 0.5 MPa, or step up to the ATE25X25 for 170.9 N at 0.5 MPa if you need more force. This ATE20X25B has a male rod thread (B code) and a PT port, and it operates from 0.2 MPa minimum pressure, so verify your air supply can beat the spring. It does not hold mid-stroke on air loss; the spring returns the rod to its extended home position.
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 ATE20X25B FAQ
At 0.5 MPa the net pull is 88.1 N, and at 0.7 MPa it is 135.2 N, both after accounting for the return spring. The minimum working pressure is 0.2 MPa, and the proof pressure is 1.5 MPa (215 psi).
No, this version has no magnet because the -S code was not ordered. To use CMSE or DMSE reed or solid-state switches, you must order the ATE20X25SB model, which includes the optional magnet in the piston.
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