This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X80S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X80S 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 ACPD50X80S is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø50mm bore and 80mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED50X80S (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting, double-rod compact cylinder built to the DIN-standard ACP layout, the ACPD50X80S pushes a 50 mm bore through an 80 mm stroke with a rod leaving both covers. Because each side works on the rod-side area, output is identical in both directions: 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa, equal push and pull. The through-rod resists rotation and light side load, gives a symmetric mounting point at each end, and lets the rear rod carry a sensor flag while the front rod does the work. The S code means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clipped on for end-of-stroke signals.
The hard-anodized aluminium body with an S45C hard-chrome rod runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, and -20 to +70 C, with a fixed TPU bumper at both ends. The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight guarding and gantry frames. In practice the 881.2 N rating converts to about 90 kgf, so plan on lifting roughly 45 kg vertically with a 2:1 margin, or budget about 529 N for real work at 0.5 MPa. Note this model is discontinued: the current-production drop-in is ACED50X80, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X80S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X80S |
| Bore size | Ø50 mm |
| Stroke | 80 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 ACED50X80S (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. |
| ×80 | 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 drives a pusher plate from either cover on a packaging line, so the 881.2 N return stroke is as strong as the extend stroke - no derating on the backstroke.
On a gantry transfer unit, the rear rod carries a sensor flag while CMSE switches on the fitted -S magnet confirm extend and retract inside a frame too short for a full-length cylinder.
A compact press head pressing bushings into plastic housings uses the about 529 N usable force at 0.5 MPa, with the symmetric double-rod mount keeping the tooling square.
At 881.2 N per direction, the 50 mm bore sits mid-range: step down to the 40 mm bore (571.8 N at 0.5 MPa) for lighter clamping, or up to the 63 mm bore (1458.1 N) when a heavier press or lift needs more margin. The 80 mm stroke is well inside the 250 mm maximum standard stroke for this bore, so no made-to-order length is involved. If the load must stay put when air is lost, remember a plain double-rod cylinder drifts - add a rod lock or pilot check valve rather than relying on the cylinder. FA/FB flange and LB foot mounts bolt to the standard face, the M10x1.5 female rod thread takes standard knuckles, and the fitted -S magnet works with CMSE / DMSE switches. For new projects, order the ACED50X80 instead, the current ISO 21287 successor.
Replacement checklist
Yes - it is a double-rod cylinder, so a rod exits both covers and both strokes use the rod-side area. Output is 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa, identical push and pull, with a maximum of 179.7 kgf at 1.0 MPa. The 16 mm rod ends in an M10x1.5 female thread, the air port is 1/8" (PT), and the model is discontinued - the ACED50X80 is the current replacement.
The compact ISO 21287-class aluminium body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it fits shallow fixtures; FA/FB flange and LB foot brackets bolt straight to the face. A fixed TPU bumper at each end simply decelerates the piston at the ends of travel - it is not adjustable and never holds a load. This unit carries the optional -S magnet, so CMSE / DMSE switches can be fitted; without the S code there is no magnet. Confirm ISO 21287 dimensions of the ACED50X80 before substituting.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED50X80S replacement — usually within 7-8 hours.