This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED40X30B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED40X30B 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 ACPD40X30B is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø40mm bore and 30mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED40X30B (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder with a rod leaving both covers, the ACPD40X30B delivers 571.8 N in each direction at 0.5 MPa (800.5 N at 0.7 MPa), because both strokes work on the rod-side area. The 40 mm bore drives a 12 mm through-rod over a 30 mm stroke, with a male rod thread (B code) on each end and a 1/8" PT port. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), from -20 to +70 C at 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 fixtures and guarding. A fixed TPU bumper sits at each end, and the rear rod can carry a sensor flag or take side load thanks to the symmetric through-rod. Note: this model is discontinued - the current-production drop-in is the ACED40X30 (swap the P for an E); confirm ISO 21287 mounting dimensions before swapping. This unit has no magnet, so position sensing needs the optional -S code with CMSE / DMSE switches.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD40X30B |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED40X30B |
| Bore size | Ø40 mm |
| Stroke | 30 mm |
| Acting type | Double acting, double rod |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 200 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACED40X30B (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 | 572 N |
| 0.7 MPa | 800 N |
| Max (@1.0 MPa) | 117 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). |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 a locating pin forward and a clamp back from one cylinder, so a machining fixture gets 571.8 N on both sides without a second actuator.
Equal force both ways at 0.5 MPa makes the 40 mm double-rod body ideal for a pusher that must divert cartons left or right with identical thrust.
The rear rod of the 12 mm through-rod mounts a flag for CMSE / DMSE switches (with the optional -S magnet), giving end-of-stroke signals in a 30 mm envelope.
At 40 mm bore you get 571.8 N per direction at 0.5 MPa; if your jig needs less, the 32 mm double-rod version gives 345.6 N, and the 50 mm bore steps up to 881.2 N. Plan on roughly 343 N of usable push (about 0.6 of rating), which is around 35 kgf - halve that for a 2:1 margin and it lifts about 17 kg vertically. The 30 mm stroke is well inside the 200 mm maximum standard stroke for this bore. Foot (LB) and flange (FA/FB) mounts bolt to the standard face; the male thread (B) suits external rod accessories. If you must hold a load with air off, add a rod lock or pilot check - the bare cylinder drifts. Order the ACED40X30 as the current replacement.
Replacement checklist
Yes - the double-rod design means both strokes use the rod-side area, so force is equal each way: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa, with a maximum of 116.6 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, on air filtered to 40 um.
Order the ACED40X30, the current-production ISO 21287 successor (swap the P for an E). It matches the same 40 mm bore, 30 mm stroke and force class with a short compact body and FA/FB flange or LB foot mounting. Because the ACP is DIN-standard, confirm the ISO 21287 mounting dimensions before swapping. For position switches, the -S magnet code enables CMSE / DMSE sensors.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED40X30B replacement — usually within 7-8 hours.