This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED12X35S, 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 ACPD12X35S is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø12mm 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 ACED12X35S (ISO 21287 ACE), in the same bore, stroke and force class.
Double acting with a rod leaving both covers, the ACPD12X35S is a DIN-standard compact cylinder from AirTAC: 12 mm bore, 35 mm stroke, 6 mm rod and an M5x0.8 port. Because both strokes work on the rod-side area, output is equal in each direction - 42.4 N at 0.5 MPa and 59.4 N at 0.7 MPa. The through-rod resists rotation and light side load, and 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 body.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight jigs and guarding. A fixed TPU bumper sits at each end, and the hard-anodized aluminium body pairs with an S45C hard-chrome rod. As a planning figure, treat roughly 25 N (about 2.6 kg of vertical lift) as the usable output at 0.5 MPa rather than the full 42.4 N. Note: the ACPD family is discontinued; the current-production direct is the ACED12X35 - confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD12X35S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED12X35S |
| Bore size | Ø12 mm |
| Stroke | 35 mm |
| Acting type | Double acting, double rod |
| Port size | M5×0.8 |
| Rod thread | M3×0.5 |
| 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 50 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACED12X35S (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 | 42 N |
| 0.7 MPa | 59 N |
| Max (@1.0 MPa) | 9 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). |
|---|---|
| 12 | 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 rear rod carries a flag past a CMSE switch (magnet fitted via the -S code), confirming a PCB carrier has reached the 35 mm end position on a test bench.
Equal 42.4 N output in both directions presses a battery clip home, then retracts the tool without flipping the fixture - the through-rod keeps the nose from rotating.
A cuvette slides 35 mm between wash and read stations; the M5x0.8 ports and compact body fit the narrow deck of a benchtop diagnostic instrument.
At 42.4 N per side at 0.5 MPa, this 12 mm bore suits light clamping and small-part positioning. Step down is not available in this family, so for more force look at the ACPD16 (75.4 N both ways at 0.5 MPa) or ACPD20 (117.8 N). The 35 mm stroke sits inside the 50 mm standard limit for bore 12, so no made-to-order build is needed. A plain double-rod cylinder drifts when air is lost - add a rod lock or pilot check if the load must stay put. This unit already includes the -S magnet for CMSE / DMSE switches. Since ACPD is discontinued, order the ACED12X35 as the current replacement and verify the ISO 21287 mounting footprint.
Replacement checklist
It is a double-rod cylinder, so force is identical on extend and retract: 42.4 N at 0.5 MPa and 59.4 N at 0.7 MPa, equal both ways because both strokes use the rod-side area. Peak output at 1.0 MPa is about 8.6 kgf. Operating range is 0.15-1.0 MPa (22-145 psi) with air filtered to 40 um, proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and temperature -20 to +70 C.
The ACPD family is no longer produced. The current direct is the ACED12X35 - swap the P for an E - which matches the same 12 mm bore, 35 mm stroke and force class in the ISO 21287 series. Before ordering, confirm the ISO 21287 mounting dimensions against your fixture, since the ACP was built to the DIN-standard compact format. FA/FB flange and LB foot mounts are available on the replacement.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED12X35S replacement — usually within 7-8 hours.