Airtac ACE Compact Cylinder ACE25X40SB
The AirTAC Airtac ACE Compact Cylinder ACE25X40SB is a genuine double acting ISO 21287 compact air cylinder with a Ø25mm bore and 40mm 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
- Stroke40 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 ACE25X40SB
This AirTAC ACE25X40SB is a double acting compact cylinder that extends and retracts its rod with air pressure, delivering a 245.4 N push and 206.2 N pull at 0.5 MPa. The 25 mm bore size suits light to medium automation tasks, and the 40 mm stroke fits compact work envelopes.
Its ISO 21287 short body takes up about 50% less mounting length than an ISO 15552 profile cylinder, so it installs in tight jigs and guarded areas. The optional -S magnet is fitted here, enabling CMSE or DMSE switches for position sensing. For real work, plan on about 15 kg of vertical lift at 0.5 MPa with a 2:1 safety margin, not the full rated force.
Airtac ACE Compact Cylinder ACE25X40SB Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE25X40SB |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø25 mm |
| Stroke | 40 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 ACE25X40SB
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×40 | 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 ACE25X40SB Is Used
Fixture Clamping
Use the 245.4 N push to clamp small parts in a CNC fixture, where the compact body fits between vise jaws and the 40 mm stroke clears the workpiece.
Label Applicator
Drive a label applicator head in a packaging line; the 40 mm stroke cycles quickly and the M5x0.8 port connects to existing 5 mm tubing.
Guard Door Interlock
Actuate a light machine guard interlock with the 206.2 N pull retracting a latch pin, while the short body mounts inside a slim extrusion frame.
Is the Airtac ACE Compact Cylinder ACE25X40SB the Right Cylinder?
Compare this 25 mm bore with the 20 mm bore, which pushes 157.1 N at 0.5 MPa, or step up to a 32 mm bore for 402.1 N push. Choose the 25 mm when you need moderate force in a short package. Since this model has the -S magnet, you can mount CMSE or DMSE switches for end-of-stroke detection. The male rod thread (B) simplifies attaching custom tooling. For applications that must hold a load when air is lost, add a rod lock or pilot check valve, as this cylinder does not lock by itself.
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 ACE25X40SB 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 range is 0.15-1.0 MPa (22-145 psi).
The magnet is an optional -S feature, and this ACE25X40SB includes it. With the magnet fitted, you can mount CMSE or DMSE reed or solid-state switches for position sensing. Without the -S code, no magnet is present. The body is ISO 21277 compact aluminum, about 50% shorter than an ISO 15552 profile cylinder.
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Covers non-human-caused product damage.
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