Airtac ACED Double-acting Compact Cylinder ACED25X55
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED25X55 is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø25mm bore and 55mm 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
- Stroke55 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- 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 ACED Double-acting Compact Cylinder ACED25X55
The ACED25X55 is a double acting, double-rod compact cylinder built to the ISO 21287 short-body format: a 25 mm bore with a 55 mm stroke and a 10 mm piston rod leaving both covers, so the output force is equal in each direction because both strokes work on the rod-side area. At 0.5 MPa it delivers 206.2 N either way, rising to 288.6 N at 0.7 MPa. The hard-anodized aluminium body with a roller-burnished bore carries an S45C hard-chrome-plated rod, and the covers thread on for straightforward service.
Because a rod exits the rear cover too, the back rod can carry a sensor flag or a second tooling plate while the through-rod resists rotation and side load. The short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding. In practice, plan on roughly 124 N of usable work at 0.5 MPa (about 0.6 of the rating), which corresponds to lifting about 6 kg vertically with a 2:1 margin. A fixed TPU bumper at each end absorbs end-of-stroke shock, and the optional -S magnet enables CMSE / DMSE switches.
Airtac ACED Double-acting Compact Cylinder ACED25X55 Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED25X55 |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø25 mm |
| Stroke | 55 mm |
| Acting type | Double acting, double rod |
| 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 | Force (both ways) |
|---|---|
| 0.5 MPa | 206 N |
| 0.7 MPa | 289 N |
| Max (@1.0 MPa) | 42 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac ACED Double-acting Compact Cylinder ACED25X55
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 25 | Bore size in mm. |
| ×55 | 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 ACED Double-acting Compact Cylinder ACED25X55 Is Used
Fixture clamping in CNC machining cells
The symmetric 206.2 N clamp-and-release force at 0.5 MPa suits a drill jig or milling fixture where the part must be gripped and released with identical force, and the short body fits inside the fixture footprint.
Pusher arms on packaging lines
A through-rod pusher on a carton or blister transfer conveyor gets equal thrust both ways and the rear rod can carry a flag for the optional -S magnet with a CMSE or DMSE switch.
Small vertical lift-and-lower stations
With about 6 kg of vertical lift capacity at a 2:1 margin, the double rod guides a small nest or sensor bracket up and down without a separate guide, at speeds of 30-500 mm/s.
Is the Airtac ACED Double-acting Compact Cylinder ACED25X55 the Right Cylinder?
At 206.2 N per side at 0.5 MPa, the 25 mm bore sits between the 20 mm bore (117.8 N) and the 32 mm bore (345.6 N), so choose the ACED25X55 when your clamp or transfer load falls in that middle band and you need equal force pushing and pulling. The 55 mm stroke is well inside the 150 mm maximum standard stroke for this bore, so it ships as a catalogue item. Remember it does not hold position when air is lost - for a held load, pair it with a rod lock or pilot check valve. It bolts to FA/FB flanges, LB feet and CA clevis brackets on the ISO 21287 face, takes a female M6x1.0 rod thread as coded here (order the B variant for male thread), and uses M5x0.8 ports. If you need position feedback, order the -S code; without it there is no magnet and no switch can be fitted.
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 ACED Double-acting Compact Cylinder ACED25X55 FAQ
No - this is a double-rod cylinder, so a 10 mm rod exits both covers and both strokes use the rod-side area. The force is equal in each direction: 206.2 N at 0.5 MPa and 288.6 N at 0.7 MPa, with a maximum of 42.0 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the media is air filtered to 40 um.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so the ACED25X55 fits shallow jigs, guards and gantries. Each end has a fixed TPU bumper that absorbs end-of-stroke energy. Mounting brackets such as FA/FB flanges, LB feet and CA clevises bolt straight to the standard face. For switching, order the optional -S magnet code - only then can CMSE or DMSE reed or solid-state switches be mounted on the body's magnet slots.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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