This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED20X5S, 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 ACPD20X5S is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø20mm bore and 5mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED20X5S (ISO 21287 ACE), in the same bore, stroke and force class.
Double acting with a rod leaving both covers, the ACPD20X5S delivers 117.8 N in either direction at 0.5 MPa (164.9 N at 0.7 MPa), since both strokes work on the rod-side area. The 5 mm stroke suits tiny clamping or eject moves, and the through-rod resists rotation and light side load while the rear rod can carry a sensor flag. This model carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches mount directly on the 20 mm body.
The hard-anodized aluminium body with an S45C hard-chrome rod runs 30-500 mm/s on air filtered to 40 um, at 0.15-1.0 MPa (22-145 psi) and -20 to +70 C, with a fixed TPU bumper at each end. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slips into tight fixture plates. Note: this model is discontinued - the current direct is ACED20X5, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD20X5S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED20X5S |
| Bore size | Ø20 mm |
| Stroke | 5 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 ACED20X5S (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. |
| ×5 | 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 5 mm stroke and 117.8 N per side at 0.5 MPa are enough to seat or release a small clutch puck on an assembly bench, with equal force whichever way the part is approached.
With the -S magnet fitted, a DMSE switch on the body reads the 5 mm end positions, while the rear rod carries a flag for a vision check on an electronics test rig.
About 71 N of usable push at 0.5 MPa nudges small molded clips off a tray cavity, and the through-rod keeps the tooling plate square during the short move.
At 117.8 N per side at 0.5 MPa, the 20 mm bore sits between the 16 mm (75.4 N) and 25 mm (206.2 N) options - step down for lighter pick-and-place, up if your jig needs margin. The 5 mm stroke is well inside the 100 mm standard limit for this bore. A plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check for held loads. FA/FB flange or LB foot mounting fits standard fixtures, and the fitted -S magnet lets you add CMSE / DMSE switches. Order ACED20X5 as the current-production replacement.
Replacement checklist
Yes - because a rod exits both covers, both strokes use the rod-side area, so force is equal both ways: 117.8 N at 0.5 MPa and 164.9 N at 0.7 MPa, peaking at 24.0 kgf at 1.0 MPa. Ports are M5x0.8, the rod end is female M6x1.0, the rod is 10 mm, and the maximum standard stroke for this bore is 100 mm (5 mm ordered here).
Order ACED20X5, the current-production ISO 21287 successor: swap the P for an E and you get the same 20 mm bore, 5 mm stroke and force class in a matching short body. The ACP is DIN-standard, so confirm the ISO 21287 mounting dimensions against your fixture before swapping, and re-specify the -S magnet if you need CMSE / DMSE switch sensing.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED20X5S replacement — usually within 7-8 hours.