Airtac ACE Compact Cylinder ACE25X45S
The AirTAC Airtac ACE Compact Cylinder ACE25X45S is a genuine double acting ISO 21287 compact air cylinder with a Ø25mm bore and 45mm 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
- Stroke45 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 ACE25X45S
This AirTAC ACE25X45S is a double acting compact cylinder built to ISO 21287, with a 25 mm bore and a 45 mm stroke. Its hard-anodized aluminium body and S45C hard-chrome plated rod deliver 245.4 N of push force at 0.5 MPa, while the fixed TPU bumper at each end absorbs impact and keeps cycle speeds between 30 and 500 mm/s.
Because the body is about 50% shorter than an ISO 15552 profile cylinder, it fits into tight jigs and guarding where a full-length unit will not. The optional -S magnet is fitted here, so CMSE or DMSE reed and solid-state switches can be mounted for position sensing. For a real-world load, plan on roughly 15 kg of safe vertical lift at 0.5 MPa, which is a practical 2:1 margin over the theoretical 25 kg the 245.4 N push could support.
Airtac ACE Compact Cylinder ACE25X45S Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE25X45S |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø25 mm |
| Stroke | 45 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 ACE25X45S
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×45 | 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 ACE25X45S Is Used
Fixture Clamping
Use the ACE25X45S to clamp small parts in a CNC fixture, where its short body fits under a workholding plate and the 245.4 N push holds components securely during drilling or milling.
Carton Tabbing
In a packaging line, this cylinder can push a tab or flap into place on a carton at speeds up to 500 mm/s, with the TPU bumper preventing shock to the product.
Sorting Gate
Mount the ACE25X45S on a conveyor sorting gate to divert lightweight boxes, using the optional -S magnet and a CMSE switch to confirm the gate position for each cycle.
Is the Airtac ACE Compact Cylinder ACE25X45S the Right Cylinder?
For a lighter force class, the ACE20X45S offers 157.1 N push at 0.5 MPa, while stepping up to the ACE32X45S gives 402.1 N push at the same pressure. This 25 mm bore unit suits applications where a compact envelope and moderate thrust are needed, and the M5x0.8 port is standard for this bore size. Since the magnet is included, you can add CMSE or DMSE switches for reliable end-of-stroke detection, and the FA/FB flange or LB foot mounts bolt directly to ISO 21287 faces.
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 ACE25X45S FAQ
At 0.5 MPa, the push force is 245.4 N and the pull force is 206.2 N. At 0.7 MPa, push rises to 343.6 N and pull to 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), with a proof pressure of 1.5 MPa (215 psi).
The ACE25X45S has a body about 50% shorter than an ISO 15552 profile cylinder, so it saves space in tight enclosures. It uses a fixed TPU bumper at both ends to absorb end-of-stroke energy, and the optional -S magnet allows CMSE or DMSE sensors to be mounted for position feedback. The M5x0.8 port is standard for this bore.
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