This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED20X35S, 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 ACPD20X35S is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø20mm bore and 35mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED20X35S (ISO 21287 ACE), in the same bore, stroke and force class.
Double acting with a rod leaving both covers, the ACPD20X35S pushes and pulls with identical force because each stroke works on the rod-side area: 117.8 N at 0.5 MPa and 164.9 N at 0.7 MPa, equal in both directions. The through-rod resists rotation and light side load, gives a symmetric mount, and the rear rod can carry a sensor flag. A fixed TPU bumper sits at each end, and speed runs 30-500 mm/s over 0.15-1.0 MPa (22-145 psi) of clean, 40 um filtered air.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures and guarding. This unit carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke signals. Note that ACPD is discontinued: the current-production direct is ACED20X35, same bore, stroke and force class - confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD20X35S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED20X35S |
| Bore size | Ø20 mm |
| Stroke | 35 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 ACED20X35S (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. |
| ×35 | 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 35 mm stroke and 117.8 N per side at 0.5 MPa clamp small aluminum brackets in drilling jigs, and the through-rod lets the clamp sit mid-body for a symmetric fixture.
With the -S magnet fitted, CMSE or DMSE switches signal vial-gate open and closed on a small parts feeder, both rod ends staying inside a 100 mm envelope.
Equal force both directions (164.9 N at 0.7 MPa) advances and returns a light indexing slide on a carton labeling table, the rear rod carrying a position flag.
At 117.8 N per side at 0.5 MPa, the 20 mm bore suits light clamping and transfer tasks; step down to the 16 mm bore (75.4 N) for smaller loads or up to the 25 mm bore (206.2 N) when more force is needed. The 35 mm stroke sits well inside the 100 mm maximum standard stroke for this bore, so it is a catalog item. A plain double-rod cylinder drifts when air is lost - add a rod lock or pilot check if the load must be held. The female M6x1.0 rod thread takes I/Y knuckles, and FA/FB flange or LB foot mounts bolt to the face. This model already includes the -S magnet for CMSE / DMSE switches. Order ACED20X35 as the current replacement.
Replacement checklist
Output is equal both ways because a rod exits each cover and both strokes use the rod-side area: 117.8 N at 0.5 MPa, 164.9 N at 0.7 MPa, with a maximum of 24.0 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, air filtered to 40 um, temperature -20 to +70 C.
It is a short ISO 21287-class compact cylinder with a hard-anodized aluminium body and S45C hard-chrome rod, saving about 50% of the mounting length of an ISO 15552 profile cylinder. Fixed TPU bumpers decelerate at both ends, FA/FB flange and LB foot mounts bolt to the face, and the -S magnet on this unit accepts CMSE / DMSE switches. ACPD is discontinued - order ACED20X35, the current direct, and confirm ISO 21287 mounting dimensions before the swap.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED20X35S replacement — usually within 7-8 hours.