Airtac ACED Double-acting Compact Cylinder ACED125X25B
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X25B is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø125mm bore and 25mm stroke, 1/4" 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.
- BoreØ125 mm
- Stroke25 mm
- Port size1/4"
- Acting typeDouble acting, double rod
- Rod threadM16×2.0
- 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 ACED125X25B
The ACED125X25B is a double acting, double-rod compact cylinder built to ISO 21287: a 125 mm bore with a 25 mm stroke and a 25 mm piston rod leaving BOTH covers, so the output force is identical in push and pull because both strokes work on the rod-side area. At 0.5 MPa it delivers 5890.5 N each way, rising to 8246.7 N at 0.7 MPa. The male rod thread (B code) bolts straight to your tooling, and the 1/4" PT ports feed air filtered to 40 um across a 0.15-1.0 MPa (22-145 psi) working band.
Because the short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, this heavy-thrust unit still fits shallow presses, clamping gantries and machine frames where a full-length cylinder cannot. The through-rod resists rotation and side load and gives a symmetric mount, and the rear rod can carry a sensor flag. A fixed TPU bumper at each end absorbs end-of-stroke energy, and the hard-anodized aluminium body with an S45C hard-chrome-plated rod stands up to continuous cycling at 30-500 mm/s. In practice, plan on roughly 3534 N of real work at 0.5 MPa (about 60% of the rating), which is a vertical lift of around 180 kg with a 2:1 margin.
Airtac ACED Double-acting Compact Cylinder ACED125X25B Technical Specifications
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X25B |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 25 mm |
| Acting type | Double acting, double rod |
| Port size | 1/4" |
| Rod thread | M16×2.0 |
| 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 300 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 (Ø125mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 5890 N |
| 0.7 MPa | 8247 N |
| Max (@1.0 MPa) | 1201 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 ACED125X25B
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 125 | Bore size in mm. |
| ×25 | 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 ACED125X25B Is Used
Short-stroke stamping press
The 5890.5 N equal force in both directions suits a compact bench press that swages or embosses aluminium terminals over a 25 mm travel, retracting with the same force to strip the part off the tool.
Fixture clamping on a machining centre
Male-threaded rod both ends lets a clamp arm mount on the front rod while the rear rod drives a status flag, holding a cast-iron housing (around 180 kg safe vertical margin) against a milling fixture.
Lift-and-lower ejector in a die cast cell
The through-rod resists the side load of a sprue ejector plate, pushing finished housings out of the die with 8246.7 N at 0.7 MPa and returning with identical force for the next shot.
Is the Airtac ACED Double-acting Compact Cylinder ACED125X25B the Right Cylinder?
At this force class the neighbours matter: a 100 mm bore ACED gives 3769.9 N at 0.5 MPa, while stepping up is not possible inside the series (125 mm is the largest bore), so if you need more than 5890.5 N both ways, parallel cylinders or a different series is the answer. The 25 mm stroke suits short-travel clamping and pressing; longer travels up to 300 mm are standard for this bore. Note that a plain double-rod cylinder will drift if air is lost - for a held load, add a rod lock or pilot check valve. Mounting brackets (FA/FB flange, LB foot, FTC) plus I/Y rod knuckles bolt to the ISO 21287 face, and if you need position feedback, order the -S variant so CMSE / DMSE switches can be used; this non-S model carries no magnet.
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 ACED125X25B FAQ
Yes - it is a double-rod cylinder, so a 25 mm rod exits both covers and every stroke works on the rod-side area. Output is 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa, equal in push and pull, with a maximum of 1201.3 kgf at 1.0 MPa. Working pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the 1/4" PT ports take air filtered to 40 um.
The body is a hard-anodized aluminium ISO 21287 compact design about 50% shorter in mounting length than an ISO 15552 profile cylinder, with an S45C hard-chrome-plated rod and a fixed TPU bumper at each end that only decelerates the piston at stroke ends - it never holds or brakes a load, so use a rod lock or pilot check where a lost-air position must be kept. FA/FB flanges, LB foot and FTC brackets plus I/Y knuckles bolt to the standard face. Position sensing requires the optional -S magnet code; this model has no magnet, so CMSE / DMSE switches cannot be fitted unless you order ACED125X25SB-S.
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