This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED25X90SB, 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 ACPD25X90SB is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø25mm bore and 90mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED25X90SB (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder with a through piston rod, the ACPD25X90SB pushes 206.2 N and pulls 206.2 N at 0.5 MPa because both strokes work on the rod-side area. The 25 mm bore runs on 0.15-1.0 MPa (22-145 psi) of filtered air at 30-500 mm/s, with a fixed TPU bumper at each end of the hard-anodized aluminium body. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches can be mounted directly on the tube.
The S45C hard-chrome rod exits both covers, which resists rotation and side load and leaves a symmetric mounting face; the rear rod can also carry a sensor flag on a pick-and-place gantry. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding. Note: this model is discontinued - the current-production replacement is ACED25X90, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD25X90SB |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED25X90SB |
| Bore size | Ø25 mm |
| Stroke | 90 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 ACED25X90SB (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. |
| ×90 | 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 through rod clamps a machined aluminium bracket from both sides of a drilling fixture with an equal 206.2 N at 0.5 MPa, keeping the part centered without a second cylinder.
A packaging line uses the equal push and pull of the double rod to kick cartons either left or right off a conveyor, since both strokes deliver the same 288.6 N at 0.7 MPa.
At 206.2 N per direction, the 25 mm bore sits between the 20 mm bore (117.8 N) and the 32 mm bore (345.6 N) at 0.5 MPa, so step up to 32 mm if your fixture needs more than about 124 N of usable force. The 90 mm stroke is well inside the 150 mm maximum standard stroke for this bore, so no made-to-order build is needed. The male rod thread (B code) suits I/Y rod knuckles, and FA/FB flange or LB foot mounts bolt to the same face. Remember that a plain through-rod cylinder drifts when air is lost - add a rod lock or pilot check if the load must be held. Order ACED25X90 as the current direct replacement.
Replacement checklist
Yes - the double-rod design means both strokes use the rod-side area, so force is equal both ways: 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), speed 30-500 mm/s, and the 90 mm stroke is within the 150 mm standard maximum for the 25 mm bore.
This model is discontinued; the current-production replacement is ACED25X90 (swap the P for an E), which matches the same bore, stroke and force class in the ISO 21287 family - confirm the mounting dimensions before swapping, since the ACP is DIN-standard. This unit carries the optional -S magnet, so CMSE reed or DMSE solid-state switches mount on the tube for end-of-stroke detection.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED25X90SB replacement — usually within 7-8 hours.