Airtac ACE Compact Cylinder ACE25X125S
The AirTAC Airtac ACE Compact Cylinder ACE25X125S 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 ACE25X125S
This AirTAC ACE25X125S is a double acting compact cylinder built to ISO 21287, with a hard-anodized aluminium body and a hard-chrome plated S45C steel rod. It delivers 245.4 N of push force and 206.2 N of pull force at 0.5 MPa, with a theoretical maximum of 50.1 kgf at 1.0 MPa.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits into tight machine frames and guarding. The optional -S magnet is fitted on this model, allowing CMSE or DMSE reed and solid-state switches to sense the piston position. For a real-world load, plan for about 15 kg of safe vertical lift at 0.5 MPa, using a 2:1 margin on the 245.4 N rating.
Airtac ACE Compact Cylinder ACE25X125S Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE25X125S |
|---|---|
| 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 ACE25X125S
| 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 ACE25X125S Is Used
Fixture Clamping
Use in a pneumatic vise or jig to clamp small aluminum parts during CNC drilling, providing 245.4 N of clamping force at 0.5 MPa.
Carton Ejection
In a packaging line, this cylinder can push filled cartons off a conveyor onto a chute, with its 125 mm stroke clearing the full width of a standard box.
Guard Door Actuator
Mount on a machine guard door to slide it open and closed, using the compact body to fit within the frame and the magnet to confirm the door is shut.
Is the Airtac ACE Compact Cylinder ACE25X125S the Right Cylinder?
For a lighter duty, the ACE20X125 offers 157.1 N push at 0.5 MPa, while stepping up to the ACE32X125 gives 402.1 N push for heavier parts. This 25 mm bore with a 125 mm stroke suits medium-force applications where space is limited. Since the magnet is fitted, order CMSE or DMSE switches separately to confirm position. The M5x0.8 port is standard for this bore, and the female M6x1.0 rod thread accepts a variety of attachments.
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 ACE25X125S 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 at 1.0 MPa is 50.1 kgf.
The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, letting you install it in tight spaces. It uses a fixed TPU bumper at both ends to absorb impact, and with the fitted -S magnet, you can add CMSE or DMSE sensors for position detection.
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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.
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