
The AirTAC Airtac ACED Double-acting Compact Cylinder ACED12X25B is a genuine double acting, double rod ISO 21287 compact air cylinder with a Ø12mm bore and 25mm 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.
This is a double acting, double-rod compact cylinder built to ISO 21287: a piston rod leaves both covers, so the ACED12X25B pushes and pulls with the same 42.4 N at 0.5 MPa (59.4 N at 0.7 MPa) because both strokes work on the rod-side area. The 12 mm bore runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof tested to 1.5 MPa (215 psi), from -20 to +70 C at 30-500 mm/s.
The short hard-anodized aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into slim pick-and-place heads and test fixtures where a full-length body will not fit. The through-rod resists rotation and light side load, and the free back-end rod is handy for carrying a sensor flag. A fixed TPU bumper at each end absorbs end-of-stroke shock. Plan on roughly 25 N (about 2.5 kg vertical equivalent) of usable work at 0.5 MPa instead of the full rating, which keeps small gripper and clamp loads comfortably inside margin.
| Model | Airtac ACED Double-acting Compact Cylinder ACED12X25B |
|---|---|
| Series | ACED compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø12 mm |
| Stroke | 25 mm |
| Acting type | Double acting, double rod |
| Port size | M5×0.8 |
| Rod thread | M3×0.5 |
| 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 50 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 | 42 N |
| 0.7 MPa | 59 N |
| Max (@1.0 MPa) | 9 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). |
|---|---|
| 12 | 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 symmetric 42.4 N push and pull at 0.5 MPa ejects and retracts a small test jig pin on a circuit-board inspection station, with the 25 mm stroke matching typical fixture travel.
In a compact analytical sampler, the through-rod drives a probe in and out with equal 42.4 N force, and the rear rod can carry a flag for a proximity sensor.
On a bench-top sorting chute, the 12 mm bore flips a lightweight gate between two positions at 30-500 mm/s, and the short ISO 21287 body fits inside the chute guard.
At 42.4 N per direction, this bore suits tiny tasks: ejection of small plastic parts, light clamping of circuit boards, or actuating a micro valve lever. If your load needs more, step up to the 16 mm bore (75.4 N at 0.5 MPa); if 42.4 N is generous, the 20 mm bore (117.8 N) adds margin without much size. The B code gives a male 6 mm rod thread; the port thread is PT. Remember that a plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check if the load must stay put. The 25 mm stroke is well inside the 50 mm standard maximum for this bore, and the optional -S magnet can be ordered later if CMSE / DMSE position sensing becomes necessary.
Quick checklist
Because a rod exits both covers, output is equal in both directions: 42.4 N at 0.5 MPa and 59.4 N at 0.7 MPa, with a maximum of 8.6 kgf at 1.0 MPa. It is double acting, runs at 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, handles -20 to +70 C, moves at 30-500 mm/s, and uses an M5x0.8 port with a male rod thread (B code).
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/FB flange, LB foot and FTC brackets plus I/Y rod knuckles bolt to the standard face. A fixed TPU bumper at each end absorbs end-of-stroke energy. Position sensing requires the optional -S magnet code; without it no magnet is fitted, so order ACED12X25BS to enable CMSE / DMSE switches.
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