Airtac ATE Single Acting Guided Compact Cylinder ATE20X25S
The AirTAC Airtac ATE Single Acting Guided Compact Cylinder ATE20X25S 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 ATE20X25S
This ATE20X25S is a single acting pull cylinder with a spring that extends the rod while air 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, making it ideal for tight machine guarding and gantries where space is limited.
The included -S magnet lets you fit CMSE or DMSE switches for reliable position sensing, and the hard-anodized aluminium body with S45C hard-chrome rod resists wear in repetitive cycles. For real-world work, plan on about 5.4 kg of safe vertical lifting at 0.5 MPa, a practical margin below the full rating. Minimum working pressure is 0.2 MPa, and the fixed TPU bumper protects both ends of the stroke.
Airtac ATE Single Acting Guided Compact Cylinder ATE20X25S Technical Specifications
| Model | Airtac ATE Single Acting Guided Compact Cylinder ATE20X25S |
|---|---|
| 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 ATE20X25S
| 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 ATE20X25S Is Used
Jig Retraction
Retract a locating pin on a CNC fixture after clamping, using the 88.1 N pull to clear the part while the spring extends the pin for the next cycle.
Gate Tensioning
Pull a small conveyor side-guide into position on a packaging line, with the 25 mm stroke and compact body fitting between existing rollers.
Guard Latch Release
Release a safety interlock latch on a machine guard, where the spring-extend fail-safe returns the latch to the locked position when air is removed.
Is the Airtac ATE Single Acting Guided Compact Cylinder ATE20X25S the Right Cylinder?
Choose this 20 mm bore when you need a compact pull action with modest force, such as retracting a light guard or tensioning a small belt. If you need more pull, step up to the 25 mm bore which offers 170.9 N at 0.5 MPa, or drop to the 16 mm bore for 53.3 N at 0.5 MPa when space is even tighter. The spring returns the rod to its extended position on air loss, so it will not hold a mid-stroke load, and the optional -S magnet enables CMSE or DMSE sensors for position 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 ATE20X25S FAQ
At 0.5 MPa the net pull is 88.1 N, and at 0.7 MPa it rises to 135.2 N, both figures already accounting for the return spring. The minimum working pressure is 0.2 MPa, and the maximum is 1.0 MPa (145 psi).
The short body saves about 50% of the mounting length compared to an ISO 15552 profile cylinder, so it fits inside tight jigs and gantries. The fixed TPU bumper absorbs end-of-stroke impact, and the optional -S magnet allows CMSE or DMSE switches for position sensing.
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