This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED20X90, 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 ACPD20X90 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 ACED20X90 (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder with a rod leaving both covers, the ACPD20X90 delivers the same 117.8 N at 0.5 MPa (164.9 N at 0.7 MPa) on every stroke, since both sides work on the rod-side area. The through-rod resists rotation and side load, gives a symmetric mounting point, and lets the rear rod carry a sensor flag, while fixed TPU bumpers pad both ends. It runs at 30-500 mm/s on air filtered to 40 um, at 0.15-1.0 MPa (22-145 psi).
The hard-anodized aluminium body follows the ISO 21287 short format, saving about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures and guarding. Note this model is discontinued: the current-production direct is the ACED20X90, so confirm ISO 21287 mounting dimensions before ordering.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD20X90 |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED20X90 |
| 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 ACED20X90 (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 electronics test head forward and back with identical 117.8 N force each way, so clamping and release pressures stay matched at 0.5 MPa.
A 90 mm stroke shuttles connector housings between an assembly nest and an inspection camera on a benchtop cell, with the rear rod available for a position flag.
Mounted under a small plastic molding fixture, the symmetric rod pushes finished caps off a nest inside guarding too short for an ISO 15552 profile cylinder.
At 117.8 N per side, the 20 mm bore sits between the 16 mm (75.4 N) and 25 mm (206.2 N) options at 0.5 MPa - step up only if the 25 mm body length still fits. The 90 mm stroke is within the 100 mm standard range for this bore. Remember that a plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check for a held load. FA/FB flange and LB foot mountings bolt to the ISO 21287 face, and CMSE / DMSE switches need the optional -S magnet code, which this model does not carry. Order the ACED20X90 as the current replacement.
Replacement checklist
Yes - because a rod exits both covers, both strokes use the rod-side area. The figures are 117.8 N at 0.5 MPa and 164.9 N at 0.7 MPa in either direction, 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 an M6x1.0 female rod thread.
The hard-anodized aluminium body follows the ISO 21287 short format, cutting about 50% of the mounting length of an ISO 15552 profile cylinder, with FA/FB flange and LB foot options. The ACPD family is no longer in production: order the ACED20X90, the current direct in the same bore, stroke and force class, and confirm the ISO 21287 mounting dimensions before swapping.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED20X90 replacement — usually within 7-8 hours.