This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED20X75B, 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 ACPD20X75B is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø20mm bore and 75mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED20X75B (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder with a rod leaving both covers, the ACPD20X75B delivers 117.8 N in each direction at 0.5 MPa because both strokes work on the rod-side area. The 20 mm bore, 75 mm stroke and male rod thread (B code) come on a hard-anodized aluminium body with an S45C hard-chrome rod, running at 0.15-1.0 MPa (22-145 psi) and 30-500 mm/s.
The through-rod resists rotation and light side load, gives a symmetric mounting face, and leaves the rear rod free for a sensor flag. Fixed TPU bumpers sit at both ends. Note the short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures. This model is discontinued; the current direct is ACED20X75.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD20X75B |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED20X75B |
| Bore size | Ø20 mm |
| Stroke | 75 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 ACED20X75B (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. |
| ×75 | 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 rear rod drives a return plate while the front rod presses a probe into a PCB, both strokes pushing with 117.8 N at 0.5 MPa on a bench-top tester.
A 75 mm through-rod stroke shuttles small aluminium housings between two nests on an assembly cell, the male thread taking a standard I knuckle.
The back-end rod carries a flag past a switch bracket so a PLC confirms full extension of a 20 mm bore clamp inside a compact guarding panel.
Size up to the 25 mm bore (206.2 N at 0.5 MPa) if the 117.8 N of this 20 mm unit is marginal, or down to the 16 mm bore (75.4 N) for lighter tooling. The 75 mm stroke sits inside the 100 mm standard limit for this bore. Choose the B code for a male rod thread; add the optional -S code if CMSE or DMSE switches will be needed. A plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check for held loads. For new builds, order ACED20X75 instead and confirm the ISO 21287 mounting dimensions.
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, with a maximum of 24.0 kgf at 1.0 MPa. Both strokes use the rod-side area, so push never exceeds pull.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA/FB flange or LB foot mounting. Position sensing requires the optional -S magnet code, which enables CMSE or DMSE switches; this model without -S has no magnet. The unit is discontinued, so confirm ACED20X75 and its ISO 21287 dimensions before ordering.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED20X75B replacement — usually within 7-8 hours.