Airtac ACE Compact Cylinder ACE25X5SB
The AirTAC Airtac ACE Compact Cylinder ACE25X5SB is a genuine double acting ISO 21287 compact air cylinder with a Ø25mm bore and 5mm 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
- Stroke5 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 ACE25X5SB
This AirTAC ACE25X5SB is a double acting ISO 21287 compact cylinder with a 25 mm bore and a 5 mm stroke. It delivers a 245.4 N push and 206.2 N pull force at 0.5 MPa, with a theoretical maximum of 50.1 kgf at 1.0 MPa, making it a solid choice for light automation tasks.
The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, letting it fit into tight machine frames and guarding. The S code means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be mounted for position sensing. As a practical rule, plan for about 147 N of real work at 0.5 MPa, which is roughly a 15 kg vertical lift with a 2:1 safety margin.
Airtac ACE Compact Cylinder ACE25X5SB Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE25X5SB |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø25 mm |
| Stroke | 5 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 ACE25X5SB
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×5 | 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 ACE25X5SB Is Used
Tight-Fit Jig Clamp
Use the 5 mm stroke to actuate a small swing clamp in a CNC fixture where the ISO 21287 short body clears the spindle guard, and the 245.4 N push holds thin aluminum parts during drilling.
Label Applicator Press
In a carton labeling line, this cylinder drives a 5 mm press pad to seat labels onto small cosmetic bottles, with the male rod thread mounting directly to the applicator head and the magnet triggering a CMSE switch at full extension.
Parts Ejector Pin
Mount this compact unit behind a die to eject a stamped washer from a press tool. The 206.2 N pull retracts the pin cleanly, and the short body fits between the die set and the machine frame.
Is the Airtac ACE Compact Cylinder ACE25X5SB the Right Cylinder?
When sizing, compare this 25 mm bore against a 20 mm bore which pushes 157.1 N, or step up to a 32 mm bore for 402.1 N at the same 0.5 MPa pressure. For this 5 mm stroke, the male rod thread (B code) simplifies direct coupling to a load without a rod-end accessory.
Since the magnet is fitted, you can wire in CMSE switches for end-of-stroke detection. The M5x0.8 port suits small-bore manifolds and flow controls. Remember, this cylinder does not hold position if air pressure is lost, so add a pilot check valve or rod lock for any load that must stay put.
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 ACE25X5SB 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 is 343.6 N and pull is 288.6 N. The theoretical maximum force is 50.1 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa (22-145 psi).
The ACE is an ISO 21287 compact cylinder, so its body is about 50% shorter than an ISO 15552 profile cylinder, which helps in tight spaces. The S in the model code means the optional -S magnet is fitted, allowing you to use CMSE or DMSE switches for position sensing. Without the S code, no magnet is present.
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