This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED32X55S, 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 ACPD32X55S is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø32mm bore and 55mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED32X55S (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder with a rod leaving both covers, the ACPD32X55S pushes and pulls with identical force because each stroke works on the rod-side area: 345.6 N at 0.5 MPa and 483.8 N at 0.7 MPa in either direction. The 32 mm bore drives a 12 mm through-rod over a 55 mm stroke, with a fixed TPU bumper at each end and air supply from 0.15-1.0 MPa (22-145 psi). The S code means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke signalling.
The hard-anodized aluminium body follows the ISO 21287 short format, cutting roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight jigs and guarded gantries. Note that this model is discontinued: the current-production successor is the ACED32X55, so confirm ISO 21287 mounting dimensions before ordering.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD32X55S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED32X55S |
| Bore size | Ø32 mm |
| Stroke | 55 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 200 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACED32X55S (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 | 346 N |
| 0.7 MPa | 484 N |
| Max (@1.0 MPa) | 70 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). |
|---|---|
| 32 | Bore size in mm. |
| ×55 | 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 lets a plastics injection jig clamp from one end while the rear rod carries a position flag, with 345.6 N available in both directions at 0.5 MPa.
With the fitted -S magnet, CMSE or DMSE switches confirm each 55 mm eject stroke on a conveyor transfer station, running at 30-500 mm/s.
A packaging machine reciprocating guide uses the double rod to resist side load and rotation, moving a tray between two stops with equal force either way.
For a 55 mm stroke at this force level, compare the 25 mm bore (206.2 N at 0.5 MPa) if the load is lighter, or step up to the 40 mm bore (571.8 N at 0.5 MPa) for heavier tooling; the 32 mm sits between them at 345.6 N. Because the piston drifts when air is lost, add a rod lock or pilot check valve if the load must stay put. FA/FB flange and LB foot mounts bolt to the ISO 21287 face, and this -S version already carries the magnet for CMSE / DMSE switches. Since the ACPD is discontinued, order the ACED32X55 as the direct replacement and verify the mounting dimensions against the ISO 21287 datasheet.
Replacement checklist
Because a rod exits both covers, force is equal both ways: 345.6 N at 0.5 MPa and 483.8 N at 0.7 MPa on every stroke, with a maximum of 70.5 kgf at 1.0 MPa. The bore is 32 mm, the stroke is 55 mm, the rod is 12 mm with an M8x1.25 female thread, and the port is 1/8". Operating range is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure.
The hard-anodized aluminium body follows the ISO 21287 short format, saving about 50% of the mounting length of an ISO 15552 profile cylinder, with a fixed TPU bumper at each end and FA/FB or LB mounting options. The ACPD family is no longer in production; the current direct is the ACED32X55 (swap the P for an E), so confirm the ISO 21287 mounting dimensions before swapping.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED32X55S replacement — usually within 7-8 hours.