Airtac ACE Compact Cylinder ACE25X120S
The AirTAC Airtac ACE Compact Cylinder ACE25X120S is a genuine double acting ISO 21287 compact air cylinder with a Ø25mm bore and 120mm 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
- Stroke120 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 ACE25X120S
This AirTAC ACE25X120S is a double acting ISO 21287 compact cylinder that uses air to both extend and retract its 10 mm rod. With a 25 mm bore, it delivers 245.4 N of push force and 206.2 N of pull force at 0.5 MPa, making it a solid choice for light to medium automation tasks.
Its short body saves about 50% of the mounting length compared to an ISO 15552 profile cylinder, so it fits into tight machine frames and guarding. The optional -S magnet is fitted here, enabling CMSE or DMSE switches for position sensing, and the fixed TPU bumper at both ends absorbs end-of-stroke impact. For a real-world load, plan on about 15 kg of safe vertical lift at 0.5 MPa, applying a 2:1 margin to the rated force.
Airtac ACE Compact Cylinder ACE25X120S Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE25X120S |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø25 mm |
| Stroke | 120 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 ACE25X120S
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×120 | 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 ACE25X120S Is Used
Fixture Clamping
Use in a jig to clamp small parts during drilling or tapping on a benchtop press, leveraging the 245.4 N push force and compact body to fit under the spindle.
Sorting Gate
Actuate a diverting gate on a light conveyor line, where the 120 mm stroke moves parts to a secondary lane, and the -S magnet signals the controller via a CMSE switch.
Label Applicator
Drive a label tamp head in a packaging machine, using the compact body to fit between guide rails and the 206.2 N pull force to retract quickly after each cycle.
Is the Airtac ACE Compact Cylinder ACE25X120S the Right Cylinder?
When sizing, compare this 25 mm bore against the 20 mm bore, which offers 157.1 N push, or the 32 mm bore with 402.1 N push at 0.5 MPa. For this 120 mm stroke, ensure the application's cycle speed stays within the 30-500 mm/s range. This model includes the -S magnet, so you can directly mount CMSE or DMSE sensors; without the -S code, no magnet is present. The M5x0.8 port is standard for this bore size.
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 ACE25X120S 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 ACE25X120S has a short body that saves about 50% of the mounting length compared to an ISO 15552 profile cylinder, making it ideal for tight spaces. It uses a fixed TPU bumper at both ends for impact absorption, not an adjustable cushion. The -S magnet is fitted, so you can attach CMSE or DMSE sensors for position feedback.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac ACE Compact Cylinder ACE25X120S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.