Airtac ATE Single Acting Guided Compact Cylinder ATE25X20S
The AirTAC Airtac ATE Single Acting Guided Compact Cylinder ATE25X20S 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 ATE25X20S
A single acting pull cylinder with spring return, the AirTAC ATE25X20S keeps the rod normally extended: the internal spring pushes it out and compressed air retracts (pulls) it back. At the 25 mm bore this variant delivers a net pull of 170.9 N at 0.5 MPa and 253.3 N at 0.7 MPa, already minus the spring force, with a minimum of 0.2 MPa needed to overcome the spring. The S code means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clipped onto the body for end-of-stroke signalling.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why this cylinder drops into tight jigs, guards and sliding drawers where a full-length body will not fit. In practice, plan on roughly 102 N of usable pull at 0.5 MPa, which lifts about 8.7 kg vertically with a 2:1 margin - enough for small chucks, gate latches and part-retainers. The hard-anodized aluminium body carries a roller-burnished bore, the S45C rod is hard-chrome plated, and a fixed TPU bumper at each end absorbs end-of-stroke energy.
Airtac ATE Single Acting Guided Compact Cylinder ATE25X20S Technical Specifications
| Model | Airtac ATE Single Acting Guided Compact Cylinder ATE25X20S |
|---|---|
| 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 ATE25X20S
| 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 ATE25X20S Is Used
Fixture unclamping
Spring extends the plunger to hold a machined aluminium bracket in a drill jig; 0.5 MPa air pulls it back 20 mm for part release.
Drawer interlock with position signal
The fitted -S magnet drives a DMSE switch so a PLC confirms the latch is retracted before a CNC tool magazine door opens.
Carton hold-down release
Normally-extended pad presses small cartons against a conveyor side guide; air retraction frees the box at the packing station.
Is the Airtac ATE Single Acting Guided Compact Cylinder ATE25X20S the Right Cylinder?
Size by net pull, not bore: 170.9 N at 0.5 MPa (253.3 N at 0.7 MPa) suits clamping or retracting loads up to roughly 100 N in continuous duty. If your load needs more, step up to the 32 mm bore with 296.0 N at 0.5 MPa; if less, the 20 mm bore gives 88.1 N. Remember the spring returns the rod to extended on air loss - it will not hold a mid-stroke position. The female M6x1.0 rod thread takes standard rod knuckles (I or Y), and FA/FB flange, LB foot, CA/CB clevis, CR, SDB or FTC brackets bolt straight to the ISO 21287 face. The fitted -S magnet works with CMSE / DMSE switches.
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 ATE25X20S FAQ
Rated pull (air retracting, spring extending) is 170.9 N at 0.5 MPa and 253.3 N at 0.7 MPa, both already net of the return spring. Minimum working pressure is 0.2 MPa (28 psi) to beat the spring; operating range is 0.2-1.0 MPa (28-145 psi) with proof pressure 1.5 MPa (215 psi). Speed is 50-500 mm/s, temperature -20 to +70 C, fluid is air filtered to 40 um, and the 20 mm stroke is within the standard range for the 25 mm bore.
The ISO 21287 compact body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow fixtures and sliding mechanisms. This model carries the optional -S magnet, so CMSE or DMSE reed / solid-state switches mount directly in the body slots for end-of-stroke detection. A fixed TPU bumper at each end absorbs end-of-stroke energy, and FA/FB flange, LB foot, CA/CB clevis, CR, SDB or FTC brackets plus I/Y rod knuckles bolt straight to the standard face.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac ATE Single Acting Guided Compact Cylinder ATE25X20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.