Airtac ACE Compact Cylinder ACE25X70
The AirTAC Airtac ACE Compact Cylinder ACE25X70 is a genuine double acting ISO 21287 compact air cylinder with a Ø25mm bore and 70mm 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
- Stroke70 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 ACE25X70
This AirTAC ACE25X70 is a double acting compact cylinder built to ISO 21287, with a 25 mm bore and 70 mm stroke. Its hard-anodized aluminium body and S45C hard-chrome rod resist wear, while the fixed TPU bumper absorbs end-of-stroke impact. At 0.5 MPa, it delivers 245.4 N of push force and 206.2 N of pull force, making it a solid choice for light assembly tasks.
Because the body is about 50% shorter than an ISO 15552 profile cylinder, it fits into tight spaces like guard enclosures or compact jigs. For a real workload, plan on roughly 15 kg of safe vertical lift at 0.5 MPa (about 0.6 times the push force), so you can match it to actual part weights. The M5x0.8 port is standard for this bore size, and the rod end is female with M6x1.0 thread.
Airtac ACE Compact Cylinder ACE25X70 Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE25X70 |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø25 mm |
| Stroke | 70 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 ACE25X70
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×70 | 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 ACE25X70 Is Used
Fixture Clamping
Use in a jig to clamp small plastic housings during drilling or gluing, where the 245.4 N push force holds parts firmly without damaging them.
Carton Tabbing
Drive a tab-folding mechanism on a packaging line, cycling at moderate speeds to fold flaps on small cartons, thanks to the 70 mm stroke and compact body.
Guard Door Stop
Mount inside a machine guard to push a light access door open, using the short ISO 21287 body to fit within the frame and the TPU bumper to soften stops.
Is the Airtac ACE Compact Cylinder ACE25X70 the Right Cylinder?
When sizing, compare this 25 mm bore with the 20 mm bore (157.1 N push at 0.5 MPa) for lighter loads, or step up to the 32 mm bore (402.1 N push) for more margin. The 70 mm stroke is within the 150 mm maximum standard stroke for this bore, so no custom order is needed. Since this model has no -S code, it has no magnet, so CMSE or DMSE sensors cannot be mounted; order the -S version if you need position sensing.
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 ACE25X70 FAQ
At 0.5 MPa, push force is 245.4 N and pull force 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), with a proof pressure of 1.5 MPa (215 psi).
No, this model has no magnet because it lacks the optional -S code. Without the -S magnet, CMSE or DMSE switches cannot be mounted. If you need position sensing, order the ACE25X70S version. The cylinder uses a fixed TPU bumper at both ends, not an adjustable cushion, and operates at speeds from 30 to 500 mm/s.
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1-Year Warranty
Covers non-human-caused product damage.
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