Airtac ACE Compact Cylinder ACE25X125
The AirTAC Airtac ACE Compact Cylinder ACE25X125 is a genuine double acting ISO 21287 compact air cylinder with a Ø25mm bore and 125mm 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
- Stroke125 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- CushionFixed TPU bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACE Compact Cylinder ACE25X125
This AirTAC ACE25X125 is a double acting compact cylinder built to ISO 21287, with a hard-anodized aluminium body and a hard-chrome plated S45C steel rod. At 0.5 MPa it delivers 245.4 N of push force and 206.2 N of pull, while at 0.7 MPa the push rises to 343.6 N, so it suits light assembly and clamping tasks.
The ISO 21287 short body takes up about 50% less mounting length than an ISO 15552 profile cylinder, which helps in tight machine frames and guard enclosures. The fixed TPU bumper at both ends absorbs end-of-stroke impact, but it does not lock the rod; for a held load, add a rod lock or pilot check valve. This unit has no magnet, so CMSE or DMSE sensors cannot be fitted unless you order the optional -S version.
Airtac ACE Compact Cylinder ACE25X125 Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE25X125 |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø25 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed TPU bumper (both ends) |
| Max standard stroke | Up to 150 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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACE Compact Cylinder ACE25X125
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×125 | 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 ACE Compact Cylinder ACE25X125 Is Used
Fixture Clamping
Use the ACE25X125 to clamp small parts in a CNC fixture; its 245.4 N push at 0.5 MPa holds light workpieces securely, and the compact body fits under a machine guard.
Carton Tabbing
In a packaging line, this cylinder can push a tab or flap into place on small cartons, with the 125 mm stroke covering the reach needed and the TPU bumper softening the cycle end.
Test Rig Actuator
For a benchtop test jig, the ACE25X125 moves a probe or sensor into contact with a sample; the 206.2 N pull force retracts it reliably, and the short body leaves room for other fixtures.
Is the Airtac ACE Compact Cylinder ACE25X125 the Right Cylinder?
For a lighter push, the ACE20X125 offers 157.1 N at 0.5 MPa, while the ACE32X125 steps up to 402.1 N at the same pressure, so you can match the force to your actual workload. Since the ACE25X125 has no magnet, choose the -S code if you need to detect piston position with CMSE or DMSE switches; without -S, no sensor can be mounted.
Mounting options include FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot, and FTC brackets, all compatible with the ISO 21287 face. The M5x0.8 port is standard for this 25 mm bore, and the female rod thread is M6x1.0. Remember that this cylinder drifts if air pressure is lost, so for vertical lifting or holding, plan for external locking.
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 0.15 – 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 Keep speed within the rated range; the TPU bumper absorbs stroke-end energy.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACE Compact Cylinder ACE25X125 FAQ
At 0.5 MPa, push is 245.4 N and pull is 206.2 N. At 0.7 MPa, push is 343.6 N and pull is 288.6 N. The theoretical maximum force is 50.1 kgf at 1.0 MPa. Operating pressure range is 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), and speed is 30-500 mm/s.
No, this ACE25X125 has no magnet, so CMSE or DMSE switches cannot be mounted. You would need to order the -S version, which includes the optional magnet, to use reed or solid-state sensors. The fixed TPU bumper at both ends handles end-of-stroke impact but does not provide adjustable cushioning.
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