This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE63X55SB, 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 ACP63X55SB is a double acting DIN-standard tight/compact air cylinder with a Ø63mm bore and 55mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE63X55SB (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP63X55SB is a double acting DIN-standard compact cylinder with a 63 mm bore and 55 mm stroke, delivering 1558.6 N of push force and 1458.1 N of pull force at 0.5 MPa (rising to 2182.1 N at 0.7 MPa). Its short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight gantries and fixture plates where a full-length body will not fit. The hard-anodized aluminium body carries aluminium covers threaded on directly, with an S45C hard-chrome piston rod and a fixed TPU bumper at each end.
This unit is discontinued; the current-production direct is the ACE63X55, which matches the same bore, stroke and force class, so confirm the ISO 21287 mounting dimensions before swapping. Because the S code is in this model number, the optional -S magnet is fitted, letting you click CMSE or DMSE reed or solid-state switches straight onto the barrel for end-of-stroke sensing.
| Model | Airtac ACP Compact Cylinder ACP63X55SB |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE63X55SB |
| Bore size | Ø63 mm |
| Stroke | 55 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 ACE63X55SB (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 ACE63X55SB 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. |
| ×55 | 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 55 mm stroke clears the loader arm in a tight cell.
With about 935 N of de-rated working force, this bore rivets small brackets and crimps terminals on an assembly bench at 30-500 mm/s.
The short body mounts under conveyor frames to push cartons at a diverter, with CMSE switches reporting end positions via the fitted -S magnet.
Size against neighbours: the 50 mm bore pushes 981.7 N at 0.5 MPa and the 80 mm bore pushes 2513.3 N, so the 63 mm sits squarely in the mid-heavy class for clamping and pressing jigs. The 55 mm stroke is well inside the 250 mm maximum standard stroke for this bore, so no made-to-order build is needed. The B code gives a male 16 mm rod thread with M10x1.5 female option on the plain version, and the 1/8" port is fixed by the bore size. Mount with FA/FB flanges, LB feet or CA/CB clevis brackets on the ISO 21287 face; add CMSE or DMSE switches only because the -S magnet is fitted here. Remember the piston drifts if air is lost, so specify a rod lock or pilot check valve for a held load, and order the ACE63X55 as the current replacement.
Replacement checklist
At 0.5 MPa it pushes 1558.6 N and pulls 1458.1 N; at 0.7 MPa push rises to 2182.1 N and pull to 2041.3 N. The theoretical maximum is 317.9 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, speed 30-500 mm/s, and the 55 mm stroke sits inside the 250 mm maximum standard stroke for the 63 mm bore.
This model is discontinued; the current-production successor is the ACE63X55, the ISO 21287 compact cylinder in the same bore, stroke and force class. It uses the same FA/FB flange, LB foot and CA/CB clevis mounting family, but because the ACP was built to the DIN standard you should confirm the ISO 21287 mounting dimensions before swapping. The male rod thread and 1/8" port carry over, and CMSE or DMSE switches work with the -S magnet this model carries.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE63X55SB replacement — usually within 7-8 hours.