This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X75S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X75S in place of this model. 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 Airtac ACPD Double Rod Compact Cylinder ACPD50X75S is a double acting, double rod 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 ACED50X75S (ISO 21287 ACE), in the same bore, stroke and force class.
Double acting with a rod leaving both covers, the ACPD50X75S pushes with the same 881.2 N at 0.5 MPa in either direction because both strokes work on the rod-side area of the 50 mm piston. At 0.7 MPa that rises to 1233.7 N each way, with a peak of 179.7 kgf at 1.0 MPa. The through-rod resists rotation and side load, gives a symmetric mount, and the rear rod can carry a sensor flag. A fixed TPU bumper sits at each end, and stroke speed runs 30-500 mm/s.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and gantries. In practice, plan on roughly 54 kg of vertical work (about 0.6 of the 0.5 MPa force) rather than the full rating. The hard-anodized aluminium body pairs with an S45C hard-chrome rod, and this model carries the optional -S magnet so CMSE / DMSE switches can be fitted. Note: the ACPD family is discontinued - the current-production drop-in is ACED50X75, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X75S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X75S |
| Bore size | Ø50 mm |
| Stroke | 75 mm |
| Acting type | Double acting, double rod |
| 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 ACED50X75S (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 | Force (both ways) |
|---|---|
| 0.5 MPa | 881 N |
| 0.7 MPa | 1234 N |
| Max (@1.0 MPa) | 180 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
| ACPD | DIN compact cylinder (double-rod, 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 (adjustable stroke).
The through-rod pushes finished aluminium housings off a machining fixture on the front stroke while the rear rod trips a limit flag, both at 881.2 N.
Equal 1233.7 N force at 0.7 MPa in each direction centers and pre-forms small steel brackets in a compact jig where a full-length cylinder will not fit.
With the -S magnet this unit drives a packaging-machine slide at 30-500 mm/s while CMSE or DMSE switches report end positions to the PLC.
At 881.2 N per side at 0.5 MPa, this 50 mm double-rod unit suits clamping and reciprocating tasks needing equal force both ways. Step down to ACPD32X75 (345.6 N) for lighter fixtures or up to ACPD63X75 (1458.1 N) for heavier dies. A plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check for held loads. FA/FB flange and LB foot mountings bolt to the ISO 21287 face. Since ACPD is discontinued, order ACED50X75 as the current replacement and verify mounting dimensions.
Replacement checklist
Because a rod exits both covers, force is equal both ways: 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa, on the rod-side area of the 50 mm bore. Maximum output at 1.0 MPa is 179.7 kgf. Operating pressure is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, and the port is 1/8". For vertical work, budget about 54 kg rather than the full rating.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with FA/FB flange or LB foot mounting on the standard face and a fixed TPU bumper at each end. This model includes the optional -S magnet for CMSE / DMSE switches. The ACPD family is discontinued; order ACED50X75 as the current drop-in and confirm the ISO 21287 mounting dimensions first.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED50X75S replacement — usually within 7-8 hours.