Airtac ACE Compact Cylinder ACE25X45B
The AirTAC Airtac ACE Compact Cylinder ACE25X45B 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 ACE25X45B
This AirTAC ACE25X45B is a double acting compact cylinder with a 25 mm bore and 45 mm stroke, delivering 245.4 N push and 206.2 N pull at 0.5 MPa. Its ISO 21287 short body takes about 50% less mounting length than an ISO 15552 profile cylinder, so it fits into tight machine frames and guard enclosures where a longer cylinder will not go.
With the male rod thread (B code) and PT port thread, it mounts directly to standard fixtures using FA/FB flange, LB foot, or CA/CB clevis brackets. For a real workload, plan on about 15 kg of safe vertical lift at 0.5 MPa (245.4 N times 0.6, divided by 9.81), so you can match it to a specific part weight without over-specifying.
Airtac ACE Compact Cylinder ACE25X45B Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE25X45B |
|---|---|
| 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 ACE25X45B
| 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 ACE25X45B Is Used
Jig Clamping
Clamp small parts in a CNC fixture with 245.4 N push force at 0.5 MPa, fitting into a compact jig body where a full-length cylinder would interfere with tool paths.
Label Applicator
Drive a label applicator head on a packaging line with 45 mm stroke, cycling at 30-500 mm/s to press labels onto cartons without taking up conveyor-side space.
Guard Door Actuator
Slide a small machine guard door open and closed with the 206.2 N pull force at 0.5 MPa, using the M5x0.8 port for compact air lines in a safety enclosure.
Is the Airtac ACE Compact Cylinder ACE25X45B the Right Cylinder?
Size this ACE25X45B against the ACE20X45 (157.1 N push) if you need less force, or step up to the ACE32X45 (402.1 N push) for a heavier load. Since this model has no optional -S magnet, it cannot accept CMSE or DMSE sensors; order the -S code if you need position sensing. The fixed TPU bumper absorbs end-of-stroke impact, but it does not hold a load if air pressure is lost - use a rod lock or pilot check valve for that.
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 ACE25X45B FAQ
At 0.5 MPa, push is 245.4 N and pull 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 is 0.15-1.0 MPa (22-145 psi), and proof pressure is 1.5 MPa (215 psi).
The ACE25X45B body is about 50% shorter than an ISO 15552 profile cylinder, so it mounts in confined jigs, guards, and gantries. It uses a fixed TPU bumper at both ends to absorb impact, and it accepts FA/FB flange, LB foot, or CA/CB clevis brackets. The optional -S magnet is not fitted here, so CMSE or DMSE sensors are only possible if you order the -S version.
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