This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED20X45, 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 ACPD20X45 is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø20mm bore and 45mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED20X45 (ISO 21287 ACE), in the same bore, stroke and force class.
Double acting with a rod leaving both covers, the ACPD20X45 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 in either direction. The 20 mm bore drives a 10 mm rod through a 45 mm stroke, with a fixed TPU bumper at each end and speeds of 30-500 mm/s. Air supply is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), and the fluid is air filtered to 40 um.
The hard-anodized aluminium body with an S45C hard-chrome rod is an ISO 21287 short body, saving roughly 50% of the mounting length of an ISO 15552 profile cylinder, which makes it easy to fit into tight jigs and guarding. Note that the through-rod at the rear can carry a sensor flag, and this model is discontinued: the current-production replacement is the ACED20X45.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD20X45 |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED20X45 |
| Bore size | Ø20 mm |
| Stroke | 45 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 ACED20X45 (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. |
| ×45 | 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 equal 117.8 N push and pull at 0.5 MPa ejects finished clips or bushings from shallow mold pockets, and the 45 mm stroke clears the part without overtravel.
A rod at each cover lets one cylinder push cartons left or right with the same 164.9 N at 0.7 MPa, ideal for tight divert stations beside a conveyor.
The compact short body fits inside benchtop test rigs, delivering about 70 N of controlled force to press sensors or swage small terminals, with 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 a 16 mm bore (75.4 N) for smaller loads or up to a 25 mm bore (206.2 N) when more force is needed. The 45 mm stroke sits well inside the 100 mm maximum standard stroke for this bore. The female M6x1.0 rod thread and PT ports are standard, and FA/FB flange or LB foot mounting bolts onto the ISO 21287 face. If you need position feedback, order the -S code so CMSE or DMSE switches can be used; without -S there is no magnet. Because a plain double-rod cylinder drifts when air is lost, add a rod lock or pilot check for held loads. This model is discontinued - specify the ACED20X45 and confirm the ISO 21287 mounting dimensions before swapping.
Replacement checklist
Because it is a double-rod cylinder, force is equal both ways. At 0.5 MPa you get 117.8 N in each direction; at 0.7 MPa, 164.9 N in each direction; at the full 1.0 MPa the maximum is 24.0 kgf. Operating range is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and the 45 mm stroke is within the 100 mm standard maximum for the 20 mm bore.
The ACPD20X45 uses an ISO 21287 short body that saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA/FB flange and LB foot options. It is no longer in production: the ACED20X45 is the current direct in the same bore, stroke and force class, so confirm the ISO 21287 mounting dimensions before ordering.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED20X45 replacement — usually within 7-8 hours.