
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED125X275 is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø125mm bore and 275mm 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.
A double acting compact cylinder built to ISO 21287, the ACED125X275 pushes a 125 mm bore through a 275 mm stroke with a piston rod leaving BOTH covers. Because each side sees the rod-side area, output is a matched 5890.5 N at 0.5 MPa and 8246.7 N at 0.7 MPa in either direction - no push/pull mismatch to design around. The through-rod resists rotation and side load, and the free back-end rod is a handy mount for a sensor flag on gantry and press fixtures.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so this heavy thrust class still fits guarded cells and tight machine frames. At 0.5 MPa, plan on roughly 3534 N (about 360 kg) of real working thrust, or halve the 600 kgf equivalent for a 2:1 margin and it lifts about 300 kg vertically. A hard-anodized aluminium body with roller-burnished bore, S45C hard-chrome rod, fixed TPU bumpers at both ends and 1/4" PT ports complete the package; speeds run 30-500 mm/s at 0.15-1.0 MPa (22-145 psi).
| Model | Airtac ACED Double-acting Compact Cylinder ACED125X275 |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 275 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.
| 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).
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 125 | Bore size in mm. |
| ×275 | 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 matched 5890.5 N thrust in both directions clamps steel weldments in automotive press fixtures, and the through-rod keeps the tooling plate from rotating under load.
With about 300 kg of vertical lift capacity at a 2:1 margin, the 275 mm stroke raises and lowers die carts or pallet stops in a compact mast where a full-length profile cylinder will not fit.
Equal force both ways lets one cylinder divert heavy cartons or totes on a bottling line without sizing for the weaker pull stroke, with the rear rod carrying a position flag.
At this bore the ACED125X275 delivers 5890.5 N at 0.5 MPa both ways - step down to an ACED80X275 (2356.2 N) for lighter clamping, or move to the single-rod ACE if a back-end rod gets in the way of your fixture. The 275 mm stroke sits inside the 300 mm standard limit for bore 125, so no made-to-order build is needed. Remember the piston drifts if air is lost: 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, pick female M16x2.0 (blank) or male (B) rod thread, and add the optional -S magnet only if you want CMSE / DMSE switches.
Quick checklist
Yes - the double-rod design means both strokes use the rod-side area, so output is identical either way: 5890.5 N at 0.5 MPa, 8246.7 N at 0.7 MPa, and up to 1201.3 kgf (about 1201 kgf) at the 1.0 MPa maximum. Operating range is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, air filtered to 40 um, speed 30-500 mm/s, and 1/4" PT ports.
It is an ISO 21287 compact cylinder: the hard-anodized aluminium body with threaded covers saves about 50% of the mounting length of an ISO 15552 profile cylinder, while fixed TPU bumpers absorb end-of-stroke energy at both ends. Position sensing needs the optional -S magnet code - without it there is no magnet and no switch can be read. Order -S and CMSE or DMSE switches clip into the body slots. FA/FB flange, LB foot and FTC brackets bolt straight to the standard face.
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