This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE40X75S, 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 ACP40X75S is a double acting DIN-standard tight/compact air cylinder with a Ø40mm bore and 75mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE40X75S (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder with a 40 mm bore and 75 mm stroke, the ACP40X75S pushes with 628.3 N and pulls with 571.8 N at 0.5 MPa, rising to 879.6 N at 0.7 MPa. Its hard-anodized aluminium body and S45C hard-chrome rod suit 0.15-1.0 MPa (22-145 psi) air filtered to 40 um, running 30-500 mm/s between -20 and +70 C. The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight machine frames.
This unit carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be clamped straight onto the body for end-of-stroke sensing. Note that ACP is discontinued: the current-production direct is ACE40X75, so confirm ISO 21287 mounting dimensions before ordering.
| Model | Airtac ACP Compact Cylinder ACP40X75S |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE40X75S |
| Bore size | Ø40 mm |
| Stroke | 75 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 ACE40X75S (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 ACE40X75S 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. |
| ×75 | 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 secures aluminium housings in machining fixtures, and the 75 mm stroke clears part loading in tight jig plates.
At 30-500 mm/s the cylinder kicks cartons across a conveyor lane, with CMSE switches on the -S magnet confirming each reject stroke.
For a 75 mm stroke in the 600 N class, bore 40 is the right pick; bore 32 delivers 402.1 N at 0.5 MPa if the load is lighter, while bore 50 reaches 981.7 N for heavier clamping. Keep in mind a plain ACP drifts when air is lost, so add a rod lock or pilot check valve if the load must stay put. FA/FB flange, LB foot and CA/CB clevis mounts plus the fitted -S magnet for CMSE/DMSE switches round out the spec. Since ACP is discontinued, order ACE40X75 and verify the ISO 21287 mounting footprint.
Replacement checklist
At 0.5 MPa it pushes 628.3 N and pulls 571.8 N; at 0.7 MPa that rises to 879.6 N push and 800.5 N pull, with a theoretical maximum of 128.1 kgf at 1.0 MPa. It is double acting, 40 mm bore with a 12 mm rod, 1/8" PT ports, M8x1.25 female rod thread, 0.15-1.0 MPa (22-145 psi) working pressure and 30-500 mm/s speed. The model is discontinued; ACE40X75 is the replacement.
The short ISO 21287-class body cuts about 50% of the mounting length of an ISO 15552 profile cylinder, ideal for cramped gantries and guards. Because this is the S version, the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches mount directly on the barrel. Fixed TPU bumpers decelerate the piston at each end, and FA/FB, LB or CA/CB mounting brackets bolt to the standard face.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE40X75S replacement — usually within 7-8 hours.