This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X5B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X5B 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 ACPD50X5B is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø50mm bore and 5mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED50X5B (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder with a rod leaving both covers, the ACPD50X5B delivers an identical 881.2 N at 0.5 MPa (1233.7 N at 0.7 MPa) in each direction, since both strokes work on the rod-side area of the 50 mm bore. The 5 mm stroke suits short clamp-and-release or eject motions, and the male rod thread (B code) bolts straight to I/Y knuckles on the ISO 21287 face. Its hard-anodized aluminium body runs about 50% shorter in mounting length than an ISO 15552 profile cylinder, so it slots into tight fixtures and guarding.
Because the through-rod exits both ends, the rear rod can carry a sensor flag or a second tool, and the symmetric mount resists rotation and side load. A fixed TPU bumper sits at each end, and speed spans 30-500 mm/s at 0.15-1.0 MPa (22-145 psi). Note this model is discontinued: the current-production drop-in is the ACED50X5, same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping. At 0.5 MPa, plan on roughly 529 N of usable work, which lifts about 45 kg vertically with a 2:1 margin.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X5B |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X5B |
| Bore size | Ø50 mm |
| Stroke | 5 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 ACED50X5B (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. |
| ×5 | 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 5 mm stroke knocks a pressed bushing out of a fixture in one short hit, with 881.2 N available in the return stroke as well because the rod-side area drives both directions.
A rear rod on the through-rod trips the indexing pin of a dial-table mechanism while the front rod clamps, using one cylinder for two symmetric actions.
On a packaging line, the short body fits under a guard rail and the 45 kg vertical-lift equivalent at 0.5 MPa shoves an off-spec carton sideways off the belt.
For a 5 mm short-throw job needing 881.2 N each way, this 50 mm bore fits; drop to the 40 mm bore (571.8 N) for lighter clamps or step up to 63 mm (1458.1 N) if the part weight grows. The piston does not hold position when air is lost - add a rod lock or pilot check for a held load. No magnet is fitted on this code, so position switches cannot be mounted; order the -S version if CMSE / DMSE sensing is needed later. Since the ACPD is discontinued, spec the ACED50X5 as the current replacement and verify the ISO 21287 footprint.
Replacement checklist
Both strokes give the same force because a rod exits each cover and both sides use the rod-side area: 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa, equal in push and pull. At the full 1.0 MPa rating the bore reaches about 179.7 kgf. Operating range is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, and speed runs 30-500 mm/s.
The ISO 21287 compact body cuts mounting length by roughly half compared with an ISO 15552 profile cylinder, and FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot and FTC brackets bolt to the standard face. The ACPD50X5B itself is discontinued; the ACED50X5 is the current drop-in in the same bore, stroke and force class, so confirm the ISO 21287 mounting dimensions before ordering.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED50X5B replacement — usually within 7-8 hours.