This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED50X35B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED50X35B 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 ACPD50X35B is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø50mm bore and 35mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED50X35B (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder with a rod leaving both covers, the ACPD50X35B delivers 881.2 N in each direction at 0.5 MPa because both strokes work on the rod-side area. The 50 mm bore pushes 1233.7 N at 0.7 MPa either way, with a 16 mm through-rod that resists rotation and side load and gives a symmetric mount. The male rod thread (B code) bolts straight to standard tooling, and the fixed TPU bumper decelerates the piston at each end.
The short ISO 21287 body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures and guarding. Running on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), it covers 30-500 mm/s between -20 and +70 C. This model is discontinued; the current-production drop-in is ACED50X35, so confirm the ISO 21287 mounting dimensions before swapping. As a rule of thumb, plan on roughly 529 N (about 45 kg lifted vertically with a 2:1 margin) of real work at 0.5 MPa rather than the full rating.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD50X35B |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED50X35B |
| Bore size | Ø50 mm |
| Stroke | 35 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 ACED50X35B (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. |
| ×35 | 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 carries a workpiece carrier on both ends of a 35 mm shuttle stroke on a packaging line, with equal 881.2 N force driving the part out and returning it.
The rear rod on the 16 mm through-rod trips a flag or proximity target for position confirmation on an assembly station, while the front rod does the pressing.
The male rod thread screws directly into a clamp arm on a machining fixture, applying about 529 N of usable clamp force at 0.5 MPa inside a compact jig.
At 35 mm stroke this sits well inside the 250 mm maximum standard stroke for the 50 mm bore, so it is a catalog item, not a made-to-order build. If 881.2 N per side is more than the job needs, the 32 mm bore gives 345.6 N both ways at 0.5 MPa; if you need more, the 63 mm bore reaches 1458.1 N. The B code gives a male rod thread on a 16 mm rod, and the PT port thread takes standard fittings. FA/FB flange or LB foot mounts bolt to the ISO 21287 face. Note that a plain double-rod cylinder drifts when air is lost, so add a rod lock or pilot check for a held load. Order ACED50X35 as the current replacement and verify mounting dimensions.
Replacement checklist
Because a rod exits both covers, force is equal in both directions: 881.2 N at 0.5 MPa and 1233.7 N at 0.7 MPa, using the rod-side area. At 1.0 MPa the bore is rated up to 179.7 kgf. Operating pressure is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure.
Order ACED50X35, the ISO 21287 successor made by swapping the P for an E. It matches the same 50 mm bore, 35 mm stroke and force class with a short compact body. Since the ACP is DIN-standard, confirm the ISO 21287 mounting dimensions before swapping. If you need position switches, the replacement accepts CMSE / DMSE sensors; on this ACPD model the magnet was only fitted when the optional -S code was ordered, which this unit does not carry.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED50X35B replacement — usually within 7-8 hours.