
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED40X25SB 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 built to ISO 21287, the ACED40X25SB pushes a 40 mm bore piston through a 25 mm stroke with a rod leaving BOTH covers. Because each side works on the rod-side area, output is identical in either direction: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa, with a peak of 116.6 kgf at 1.0 MPa. The male-threaded 12 mm rod (the B code) bolts straight into tooling, and the through-rod resists rotation and side load while the rear rod can carry a sensor flag.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight clamping fixtures and guarded stations. A hard-anodized aluminium body carries an S45C hard-chrome rod, fixed TPU bumpers absorb end-of-stroke shock at both ends, and the fitted -S magnet lets CMSE / DMSE switches report position. At 0.5 MPa the rod side delivers 571.8 N, which lifts about 29 kg vertically - halve that for a 2:1 margin and you can safely raise a 14 kg part. Speed range is 30-500 mm/s on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi).
| Model | Airtac ACED Double-acting Compact Cylinder ACED40X25SB |
|---|---|
| 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 25 mm stroke presses a locating pin into a machined aluminium housing with 571.8 N at 0.5 MPa, then retracts with identical force because the rod-side area works both ways.
Symmetric double-rod output kicks underfilled bottles off a conveyor in either stroke direction, while the fitted -S magnet and a DMSE switch confirm home position between bottles.
The rear 12 mm rod of the through-rod carries a sensor flag on a drill-head fixture, giving position feedback and a symmetric mount in half the length of an ISO 15552 profile cylinder.
Pick this model when you need equal push and pull of roughly 571.8 N at 0.5 MPa over a short 25 mm stroke with a male rod thread for direct tooling attachment. If your load is lighter, the ACED32X25SB gives 345.6 N at 0.5 MPa on the same compact footprint; if you need more muscle, step up to the ACED50X25SB at 881.2 N. Remember the piston drifts if air is lost, so pair it with a rod lock or pilot check for held loads. FA/FB flanges, LB feet and FTC brackets mount on the ISO 21287 face, and the fitted -S magnet accepts CMSE / DMSE switches out of the box.
Quick checklist
Yes - the double-rod design means a rod exits both covers, so every stroke uses the rod-side area of the 40 mm bore. Output is 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa in EITHER direction, peaking at 116.6 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), and speed runs 30-500 mm/s.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, ideal for tight jigs and guarded machines. This SB variant carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be mounted in the body slots. FA/FB flanges, LB feet and FTC brackets bolt to the standard face, the male-threaded rod attaches directly to tooling, and fixed TPU bumpers at both ends soften end-of-stroke impact.
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