This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE40X80, 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 ACP Compact Cylinder ACP40X80 is a double acting DIN-standard tight/compact air cylinder with a Ø40mm bore and 80mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE40X80 (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP40X80 is a double acting compact cylinder with a 40 mm bore and 80 mm stroke, built to the DIN-standard short-body format on a hard-anodized aluminium body with an S45C hard-chrome piston rod. At 0.5 MPa it pushes 628.3 N and pulls 571.8 N, rising to 879.6 N and 800.5 N at 0.7 MPa, with a theoretical ceiling of 128.1 kgf at 1.0 MPa. Its short body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body cannot. Air supply is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and a fixed TPU bumper sits at both ends.
The rod end is female M8x1.25 and the port is 1/8". This model is discontinued: the current-production direct is the ACE40X80, which matches the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping. FA/FB flange, LB foot and CA/CB clevis mountings fit the standard face, and the optional -S magnet enables CMSE / DMSE switches.
| Model | Airtac ACP Compact Cylinder ACP40X80 |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE40X80 |
| Bore size | Ø40 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 200 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACE40X80 (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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 572 N |
| 0.7 MPa | 880 N | 800 N |
| Max (@1.0 MPa) | 128 kgf | |
The ACE40X80 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 628.3 N push at 0.5 MPa clamps aluminium or mild-steel workpieces in machining fixtures, and the short body fits inside the pallet envelope where an ISO 15552 profile cylinder would overhang.
An 80 mm stroke is enough to fold top flaps and press cartons on a packaging line running at 30-500 mm/s, with the fixed TPU bumper absorbing end-of-stroke contact.
For a 628.3 N push at 0.5 MPa, the 40 mm bore suits clamping and pressing fixtures in the 300-400 N working range. If your load sits below about 344 N, the 32 mm bore (402.1 N push) saves space; if you need more than 628 N, step up to the 50 mm bore at 981.7 N. Stroke 80 mm is well within the 200 mm standard limit for this bore, so no made-to-order build is needed. Remember that a plain cylinder drifts when air is lost - add a rod lock or pilot check valve if the load must stay put. Order the -S code if you need CMSE / DMSE sensing, and specify the ACE40X80 for new projects since the ACP40X80 is discontinued.
Replacement checklist
At 0.5 MPa the ACP40X80 pushes 628.3 N and pulls 571.8 N; at 0.7 MPa it pushes 879.6 N and pulls 800.5 N. The theoretical maximum is 128.1 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, speed 30-500 mm/s, air filtered to 40 um, and a 12 mm rod with M8x1.25 female thread and 1/8" port.
Order the ACE40X80, the ISO 21287 successor made by swapping the P for an E. It matches the same 40 mm bore, 80 mm stroke and force class, and accepts FA/FB flange, LB foot and CA/CB clevis mountings on the standard face. Because the ACP was built to a DIN-standard short body, confirm the ISO 21287 mounting dimensions against your fixture before swapping. If you need position sensing, the ACE takes the same optional magnet approach for CMSE / DMSE switches.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE40X80 replacement — usually within 7-8 hours.