Airtac ACE Compact Cylinder ACE25X125B
The AirTAC Airtac ACE Compact Cylinder ACE25X125B 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 ACE25X125B
This AirTAC ACE25X125B is a double acting compact cylinder built to ISO 21287, with a 25 mm bore and a 125 mm stroke. It delivers 245.4 N of push force at 0.5 MPa, which is enough to lift about 15 kg vertically with a 2:1 safety margin, making it a practical choice for light assembly tasks.
The hard-anodized aluminium body is about 50% shorter than an ISO 15552 profile cylinder, so it fits into tight machine guards and compact jigs. The male rod thread (B code) allows direct coupling to linkages, and the fixed TPU bumper at both ends absorbs end-of-stroke impact for quiet, reliable cycling.
Airtac ACE Compact Cylinder ACE25X125B Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE25X125B |
|---|---|
| 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 ACE25X125B
| 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 ACE25X125B Is Used
Compact Jig Clamping
Use in a small pneumatic jig for clamping plastic parts during drilling, where the 125 mm stroke provides clearance and the short body fits under a workbench guard.
Carton Tucking
Drive a tucking blade in a carton sealing line, using the 245.4 N push to fold flaps and the male rod thread for a custom end tool.
Lab Test Fixture
Actuate a small test probe in a quality lab fixture, where the 30-500 mm/s speed range allows controlled cycles and the fixed TPU bumper prevents shock to sensitive parts.
Is the Airtac ACE Compact Cylinder ACE25X125B the Right Cylinder?
For a lighter load, the ACE20X125 offers 157.1 N push at 0.5 MPa, while stepping up to the ACE32X125 gives you 402.1 N push for heavier work. This 25 mm bore model suits applications needing moderate force in a short envelope, and the M5x0.8 port keeps plumbing simple.
Since this unit has no magnet (no S code), you cannot mount CMSE or DMSE sensors on it. If you need position sensing, order the ACE25X125SB version instead. The male rod thread simplifies mounting to custom tooling, and the fixed TPU bumper means no adjustment is needed.
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 ACE25X125B FAQ
At 0.5 MPa, push force is 245.4 N and pull force 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 is 0.15-1.0 MPa (22-145 psi), with proof pressure at 1.5 MPa (215 psi).
The ACE25X125B has a hard-anodized aluminium body that is about 50% shorter than an ISO 15552 profile cylinder, saving space in tight installations. It uses a fixed TPU bumper at both ends to absorb impact, and the male rod thread allows direct tooling attachment. Note that this model has no magnet, so sensors are not an option unless you order the -S version.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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