This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED20X90S, 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 ACPD20X90S is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø20mm 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 ACED20X90S (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder with a rod leaving both covers, the ACPD20X90S pushes and pulls with identical force because each stroke works on the rod-side area: 117.8 N at 0.5 MPa and 164.9 N at 0.7 MPa in either direction. The 20 mm bore drives a 10 mm through-rod over a 90 mm stroke at 30-500 mm/s, with a fixed TPU bumper at each end and a hard-anodized aluminium body carrying an S45C hard-chrome rod. This model carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke sensing.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight jigs and guarding where a full-length body cannot. The through-rod also resists rotation and side load and gives a symmetric mount, so the rear rod can carry a sensor flag or a second tooling plate. Note this model is discontinued: the current-production direct is the ACED20X90, in the same bore, stroke and force class, so confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD20X90S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED20X90S |
| Bore size | Ø20 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 100 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACED20X90S (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 | 118 N |
| 0.7 MPa | 165 N |
| Max (@1.0 MPa) | 24 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). |
|---|---|
| 20 | 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 drives a small slide both ways with equal 117.8 N force at 0.5 MPa, and the rear rod carries a flag for CMSE switch position feedback.
The short body fits inside tight fixture plates on an electronics assembly jig, pushing about 70 N of usable clamping force at 0.5 MPa.
With the -S magnet fitted, DMSE switches confirm extend and retract on a bottling-line gate, with the bumper absorbing end-of-stroke shock.
For this 90 mm stroke, bore 20 gives 117.8 N both ways at 0.5 MPa; if the load needs more, bore 25 delivers 206.2 N, and if less force is fine, bore 16 gives 75.4 N. Since a plain double-rod cylinder drifts when air is lost, add a rod lock or pilot check if the load must be held. FA/FB flange, LB foot and CA/CB clevis mounts bolt to the same face, and the -S magnet on this unit pairs with CMSE / DMSE switches. Order the ACED20X90 as the current replacement.
Replacement checklist
Because a rod exits both covers, force is equal in both directions: 117.8 N at 0.5 MPa and 164.9 N at 0.7 MPa, each way, with a maximum of 24.0 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 port is M5x0.8 with a female M6x1.0 rod thread.
The short ISO 21287-class aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA/FB flange and LB foot options. The ACPD family is discontinued; the ACED20X90 is the current direct in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before ordering.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED20X90S replacement — usually within 7-8 hours.