This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACE50X75SB, 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 ACP50X75SB is a double acting DIN-standard tight/compact air cylinder with a Ø50mm bore and 75mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE50X75SB (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP50X75SB is a double acting compact cylinder in the DIN-standard ACP series, with a 50 mm bore and 75 mm stroke. At 0.5 MPa it pushes with 981.7 N and pulls with 881.2 N, rising to 1374.4 N push at 0.7 MPa. 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 where a full-length body cannot. This unit carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke sensing.
The hard-anodized aluminium body with S45C hard-chrome rod runs on 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s, with a fixed TPU bumper at each end. Note that this model is discontinued: the current-production direct is ACE50X75, same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP50X75SB |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE50X75SB |
| Bore size | Ø50 mm |
| Stroke | 75 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 ACE50X75SB (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 | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 kgf | |
The ACE50X75SB 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). |
|---|---|
| 50 | 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).
A packaging line press-fit head needs about 590 N of usable force to seat inserts into cartons over a 75 mm travel; the short body fits inside the guard frame.
On a bottling conveyor, the 981.7 N push at 0.5 MPa sweeps rejected bottles off the lane in one quick 75 mm stroke at up to 500 mm/s.
A CNC fixture clamp uses the 50 mm bore to hold aluminium housings against a milling stop, with CMSE switches (via the -S magnet) confirming the clamped position.
At 50 mm bore you sit mid-range: a 40 mm bore gives 628.3 N push at 0.5 MPa, while a 63 mm bore raises it to 1558.6 N, so step up only if your jig needs the extra margin. The 75 mm stroke is well inside the 250 mm maximum standard stroke for this bore. The male rod thread (B code) suits rod knuckles and external tooling, and FA/FB flange, LB foot or CA/CB clevis mounts bolt to the same face family. A plain cylinder drifts when air is lost, so add a rod lock or pilot check valve if the load must stay put. Order ACE50X75 as the current replacement.
Replacement checklist
At 0.5 MPa: 981.7 N push and 881.2 N pull. At 0.7 MPa: 1374.4 N push and 1233.7 N pull. Theoretical maximum at 1.0 MPa is 200.2 kgf. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, air filtered to 40 um.
The ACP50X75SB is discontinued; the current-production direct is ACE50X75 (same bore, stroke and force class) - confirm ISO 21287 mounting dimensions before swapping. This unit carries the optional -S magnet, so CMSE or DMSE switches can be mounted. FA/FB flange, LB foot and CA/CB clevis mounts fit the standard face, and the fixed TPU bumpers at both ends simply decelerate the piston.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE50X75SB replacement — usually within 7-8 hours.