This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE63X40S, 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 ACP63X40S is a double acting DIN-standard tight/compact air cylinder with a Ø63mm bore and 40mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE63X40S (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP63X40S is a double acting compact cylinder in the DIN-standard ACP series, with a 63 mm bore and a 40 mm stroke on a 16 mm hard-chrome S45C rod. At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N, rising to 2182.1 N at 0.7 MPa, with a theoretical ceiling of 317.9 kgf at 1.0 MPa. Air is the only fluid, filtered to 40 um, over 0.15-1.0 MPa (22-145 psi) and a speed range of 30-500 mm/s. The -S code means the magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke sensing.
The short ISO 21287-class body cuts roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why this bore fits shallow clamping fixtures, guard doors and gantry slides. A fixed TPU bumper sits at each end of travel; it only softens the stroke ends and never locks the piston, so a held load needs a rod lock or pilot check valve. This model is discontinued: the current-production direct is the ACE63X40, which matches the bore, stroke and force class, but confirm the ISO 21287 mounting dimensions before swapping. As a planning figure, keep real work to about 935 N (roughly 95 kg) at 0.5 MPa rather than the full 1558.6 N rating.
| Model | Airtac ACP Compact Cylinder ACP63X40S |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE63X40S |
| Bore size | Ø63 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.5 |
| 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 250 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACE63X40S (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 | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | 2041 N |
| Max (@1.0 MPa) | 318 kgf | |
The ACE63X40S 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). |
|---|---|
| 63 | Bore size in mm. |
| ×40 | 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 1558.6 N push at 0.5 MPa clamps steel housings in a machining fixture, and the short body slots into the shallow space between vise and spindle where a full-length cylinder cannot reach.
A 40 mm stroke kicks offcuts or misaligned cartons off a conveyor line, running at 30-500 mm/s, while the fitted -S magnet drives a DMSE switch to confirm each ejection.
With about 95 kg of practical working force at 0.5 MPa, the cylinder seats bearings or bushings into light press-fit assemblies on an assembly bench.
Size the bore against the load: a 50 mm bore gives 981.7 N push at 0.5 MPa, while an 80 mm bore reaches 2513.3 N, so the 63 mm sits squarely between them at 1558.6 N push and 1458.1 N pull. The 40 mm stroke is well inside the 250 mm maximum standard stroke for this bore. Mounting choices are FA/FB flange, LB foot and CA/CB clevis, with I/Y rod knuckles available, and the female M10x1.5 rod thread takes standard accessories directly. Because the piston drifts when air is lost, add a rod lock if the load must stay put. Order the ACE63X40 as the current replacement and verify its ISO 21287 footprint first.
Replacement checklist
At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N. At 0.7 MPa those figures rise to 2182.1 N push and 2041.3 N pull. The theoretical maximum is 317.9 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, and the 1/8" port is fixed by the 63 mm bore.
No, the ACP family is discontinued. The current-production direct is the ACE63X40, which keeps the same 63 mm bore, 40 mm stroke and force class in an ISO 21287 short body. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP was built to a DIN-standard footprint. This unit carries the optional -S magnet, so CMSE or DMSE switches mount for position feedback.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE63X40S replacement — usually within 7-8 hours.