This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED25X70, the same code under the new prefix. The ACE replacement is a current-production ISO 21287 compact cylinder in the same bore, stroke and force class, with a matching short body and the same mounting-accessory family, so it fits the same envelope. Confirm mounting-interface dimensions against the ACE datasheet before ordering.

The AirTAC ACPD Double Rod Compact Cylinder ACPD25X70 is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø25mm bore and 70mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED25X70 (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder with a rod leaving both covers, the ACPD25X70 pushes and pulls with identical output because each stroke works on the rod-side area: 206.2 N at 0.5 MPa and 288.6 N at 0.7 MPa in either direction. The 25 mm bore drives a 10 mm through-rod over a 70 mm stroke at 30-500 mm/s, with a fixed TPU bumper at each end. Its hard-anodized aluminium body follows the ISO 21287 short format, cutting roughly 50% of the mounting length of an ISO 15552 profile cylinder so it slots into tight jigs and gantries.
The through-rod resists rotation and side load and gives a symmetric mount, and the rear rod can carry a sensor flag on a moving table. Note that this model is discontinued: the current-production direct is the ACED25X70, so confirm the ISO 21287 mounting dimensions before swapping. The magnet is not fitted on this code; order the -S variant if you need CMSE / DMSE switch sensing.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD25X70 |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED25X70 |
| Bore size | Ø25 mm |
| Stroke | 70 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 bumper (both ends) |
| Max standard stroke | Up to 150 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACED25X70 (ISO 21287) carries the same bore/stroke/force class; confirm mounting-interface dimensions against the ACE datasheet before installation. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G.
| 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).
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 25 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| S | Optional built-in magnet for sensor position sensing (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
Replacement mapping (swap P for E): ACP→ACE, ASP→ASE, ATP→ATE, ACPD→ACED, ACPJ→ACEJ. ACP-family: ACP (double acting), ASP / ATP (single acting push / pull), ACPD (double rod), ACPJ (double rod, adjustable stroke).
The 206.2 N rod-side force at 0.5 MPa clamps aluminium brackets in machining fixtures, and the rear rod drives a position flag for the jig controller.
A 70 mm stroke at 30-500 mm/s diverts cartons between conveyor lanes, with equal push and pull force for a balanced return stroke.
At 206.2 N per side at 0.5 MPa, the 25 mm bore suits clamping and transfer tasks in the 12 kg class; step down to the 20 mm bore (117.8 N) for lighter fixtures or up to the 32 mm bore (345.6 N) when more force is needed. The 70 mm stroke sits well inside the 150 mm maximum standard stroke for this bore, so it is a catalogue item, not a made-to-order build. Remember the piston drifts if air is lost - add a rod lock or pilot check where a load must stay put. Choose FA/FB flange or LB foot mounting to match the ISO 21287 face, add the -S code only if CMSE / DMSE switches are required, and specify the ACED25X70 as the current replacement.
Replacement checklist
Yes - the double-rod design exposes the rod-side area on both strokes, so output is equal either way: 206.2 N at 0.5 MPa and 288.6 N at 0.7 MPa, with a maximum of 42.0 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), fluid is air filtered to 40 um, and speed runs 30-500 mm/s over the 70 mm stroke.
The ISO 21287 short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA/FB flange or LB foot mounting and an M5x0.8 port. A fixed TPU bumper at each end decelerates the piston at the ends of travel only - it never holds a load. The ACPD25X70 is discontinued; the ACED25X70 is the current direct, so verify the ISO 21287 mounting dimensions before ordering.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED25X70 replacement — usually within 7-8 hours.