
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED40X25B is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø40mm bore and 25mm stroke, 1/8" 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.
A double acting compact cylinder with a rod leaving both covers, the ACED40X25B pushes with the same 571.8 N at 0.5 MPa (800.5 N at 0.7 MPa) on every stroke, because both sides of the 40 mm piston see the rod-side area. The B code gives a male 12 mm rod thread, and the through-rod resists rotation and light side load while the free back-end rod can carry a sensor flag or a second tooling plate.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight guarding and slide fixtures. At 0.5 MPa plan on roughly 343 N of usable work force, which is about 29 kg of vertical lift with a 2:1 margin. A fixed TPU bumper sits at each end, the hard-anodized aluminium body runs at 0.15-1.0 MPa (22-145 psi) and 30-500 mm/s, and no magnet is fitted unless you order the optional -S code for CMSE / DMSE switches.
| Model | Airtac ACED Double-acting Compact Cylinder ACED40X25B |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø40 mm |
| Stroke | 25 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 200 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.
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 572 N |
| 0.7 MPa | 800 N |
| Max (@1.0 MPa) | 117 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 40 | 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.
The 571.8 N equal-force output clamps a machined aluminium bracket from both sides of a drilling fixture with one cylinder, no direction-dependent pressure setting needed.
A 25 mm stroke through-rod drives a small pick-and-place slide back and forth at 30-500 mm/s, the second rod end carrying a cam for a limit flag.
About 29 kg of vertical lift capacity at a 2:1 margin suits pressing caps onto 500 ml cosmetic bottles on a packaging line where headroom is tight.
For a 25 mm stroke job needing 571.8 N both ways, bore 40 is the match; bore 32 gives 345.6 N at 0.5 MPa if the load is lighter, and bore 50 reaches 881.2 N if you need headroom. Remember the piston drifts when air is lost, so add a rod lock or pilot check for a held load. Bolt FA/FB flanges, LB feet or FTC brackets to the ISO 21287 face, and order the -S variant only if CMSE / DMSE position sensing is required.
Quick checklist
Yes. As a double-rod cylinder both strokes use the rod-side area, so output is 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa in either direction, with a maximum of 116.6 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the 25 mm stroke sits well inside the 200 mm max standard stroke for bore 40.
The B code specifies a male thread on the 12 mm rod, with a 1/8" PT port on the 40 mm bore and fixed TPU bumpers at both ends. Position sensing is not possible on this unit as ordered because no magnet is fitted; the optional -S code adds the magnet that lets CMSE / DMSE switches read position along the body slots.
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