This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED20X70S, 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 ACPD20X70S is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø20mm bore and 70mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED20X70S (ISO 21287 ACE), in the same bore, stroke and force class.
This is a double acting compact cylinder with a double rod: a 10 mm piston rod exits both covers of the hard-anodized aluminium body, so the 20 mm bore delivers an identical 117.8 N at 0.5 MPa in either direction (164.9 N at 0.7 MPa) because both strokes work on the rod-side area. The through-rod resists rotation and modest side load, gives a symmetric mounting face, and the rear rod can carry a sensor flag. A fixed TPU bumper sits at each end, and stroke speed runs 30-500 mm/s on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi).
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why this size suits tight jigs and guarded stations. The S in the code means the optional -S magnet is fitted, so CMSE / DMSE reed or solid-state switches can be clipped on for end-of-stroke signals. Note that this model is discontinued: the current-production direct is ACED20X70, and you should confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD20X70S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED20X70S |
| Bore size | Ø20 mm |
| Stroke | 70 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 ACED20X70S (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. |
| ×70 | 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 70 mm stroke and short body fit inside a tight electronics assembly gantry, and the through-rod keeps the gripper bracket square while moving boards weighing under 6 kg.
About 70 N of usable force at 0.5 MPa presses microplate seals evenly, and the rear rod carries a CMSE switch flag so the PLC confirms full compression every cycle.
Equal 117.8 N thrust in both directions pushes cartons off a conveyor either way at up to 500 mm/s, with DMSE sensors on the fitted magnet reporting each divert.
Size this bore when your tooling needs about 70 N of real work at 0.5 MPa; if the load is heavier, the 25 mm bore gives 206.2 N and the 16 mm bore only 75.4 N, both in the same compact family. The 70 mm stroke sits inside the 100 mm maximum standard stroke for bore 20, so no made-to-order build is needed. Remember that a plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check if the load must stay put. The female M6x1.0 rod thread takes standard I/Y knuckles, FA/FB flange or LB foot mounts bolt to the face, and the fitted -S magnet pairs with CMSE / DMSE switches. For new projects, order the ACED20X70 instead.
Replacement checklist
Because a rod exits both covers, force is equal both ways: 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 and pull are identical. Operating range is 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), speed is 30-500 mm/s, and the port is M5x0.8.
No - the ACPD family is discontinued. The current-production replacement is ACED20X70, an ISO 21287 compact double-rod cylinder in the same 20 mm bore, 70 mm stroke and force class. Before swapping, confirm the ISO 21287 mounting dimensions against your fixture, since the ACP was built to a DIN-standard footprint. The ACED keeps the same FA/FB flange, LB foot and clevis mounting family and the same optional -S magnet for CMSE / DMSE switches.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED20X70S replacement — usually within 7-8 hours.