
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED25X40 is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø25mm bore and 40mm 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.
A double acting compact cylinder with a rod leaving both covers, the ACED25X40 pushes with identical force on every stroke because each side of the 25 mm piston works on the rod-side area: 206.2 N at 0.5 MPa and 288.6 N at 0.7 MPa, equal extend and retract. The through-rod also fights rotation and light side load, and its rear end makes a handy mount for a sensor flag on pick-and-place heads.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into cramped rotary-index tables and slide assemblies. As a rule of thumb, plan on roughly 124 N of usable work at 0.5 MPa, which is about 12 kg held vertically with a 2:1 margin. The optional -S magnet (ordered as ACED25X40S) enables CMSE / DMSE switches; without it no magnet is fitted. A fixed TPU bumper at each end absorbs end-of-stroke shock, and the hard-anodized body with S45C hard-chrome rod runs 30-500 mm/s on air filtered to 40 um.
| Model | Airtac ACED Double-acting Compact Cylinder ACED25X40 |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø25 mm |
| Stroke | 40 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.
| 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).
| ACED | ISO 21287 compact cylinder (double-rod). |
|---|---|
| 25 | Bore size in mm. |
| ×40 | 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 symmetric 206.2 N push and pull at 0.5 MPa clamps small aluminium brackets in a 40 mm envelope, and the short body fits between fixture plates where a full-length cylinder cannot.
The through-rod resists rotation on a 40 mm shuttle stroke, and the rear rod end carries a flag for a CMSE or DMSE switch when the -S magnet is ordered.
About 12 kg of vertical-lift-equivalent capacity at a 2:1 margin lets this cylinder kick misaligned cartons off a packaging conveyor at up to 500 mm/s.
At 40 mm stroke this unit sits in the light-assembly force band: the 20 mm bore ACED gives 117.8 N at 0.5 MPa if your load is lighter, while the 32 mm bore reaches 345.6 N at 0.5 MPa for heavier clamping. Remember the piston drifts when air is lost, so add a rod lock or pilot check if a position must be held. Mounting drops onto the ISO 21287 face with FA/FB flanges, LB feet or FTC brackets, and I or Y rod knuckles suit the female M6x1.0 thread; add the -S code only if you need CMSE / DMSE sensing.
Quick checklist
It is a double-rod cylinder, so force is equal both ways: 206.2 N at 0.5 MPa and 288.6 N at 0.7 MPa on extend and retract alike (rod-side area on both sides). At 1.0 MPa the rating is 42.0 kgf. Operating range is 0.15-1.0 MPa (22-145 psi) with proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the bore 25 maximum standard stroke is 150 mm.
The ISO 21287 compact body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a hard-anodized aluminium body, S45C hard-chrome rod and fixed TPU bumpers at both ends. Sensing is optional: order the -S code (ACED25X40S) to have the magnet fitted so CMSE or DMSE switches work in the body slots; without -S there is no magnet.
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