This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED40X80S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED40X80S 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 ACPD40X80S is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø40mm bore and 80mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED40X80S (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting, double-rod compact cylinder built to the DIN-standard ACP format, the ACPD40X80S pushes a 40 mm piston through an 80 mm stroke with a rod leaving both covers. Because both strokes work on the rod-side area, output is identical each way: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa. The through-rod resists rotation and light side load, and the rear rod can carry a sensor flag on pick-and-place arms. Running on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), it cycles at 30-500 mm/s between fixed TPU bumpers at each end.
The short ISO 21287-class body cuts roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight guarding and gantry frames. The hard-anodized aluminium body carries an S45C hard-chrome rod, and the -S code on this model means the magnet is fitted, so CMSE or DMSE reed and solid-state switches mount directly on the body. In practice the 571.8 N rating supports about 343 N of real work at 0.5 MPa, which lifts roughly 29 kg vertically with a 2:1 margin. Note that this model is discontinued: the current-production drop-in is the ACED40X80, so confirm ISO 21287 mounting dimensions before ordering.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD40X80S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED40X80S |
| Bore size | Ø40 mm |
| Stroke | 80 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 ACED40X80S (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. |
| ×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).
A small benchtop staking or marking press gains from equal 571.8 N force on both strokes, so the same cycle setting works for load and return without valve tuning.
A through-rod transfer slide shuttles cartons left and right on a wrapping machine; the rear rod doubles as a mount point for a CMSE switch flag to confirm end positions.
With about 29 kg of vertical lift capacity at a 2:1 margin, this cylinder raises small machined parts between a conveyor and a CNC chuck inside a compact Z-axis frame.
At 571.8 N per direction at 0.5 MPa, the 40 mm bore sits between the 32 mm (345.6 N) and 50 mm (881.2 N) sizes in the same ACPD family. If your fixture needs more thrust, step up to the 50 mm bore; if the load is under 200 N, the 32 mm saves space. This model already carries the optional -S magnet, so CMSE / DMSE switches can be added without reordering. Remember that a plain double-rod cylinder drifts when air is lost - for a held load pair it with a rod lock or pilot check valve. Order the ACED40X80 as the current replacement and verify the ISO 21287 mounting footprint first.
Replacement checklist
Yes - the double-rod design works on the rod-side area both ways, so force is equal in extend and retract: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa. At the full 1.0 MPa rating the cylinder reaches about 116.6 kgf. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, and speed range is 30-500 mm/s.
AirTAC no longer produces the ACPD family. The current drop-in successor is the ACED40X80, an ISO 21287 compact cylinder in the same 40 mm bore, 80 mm stroke and force class. Before swapping, confirm the ISO 21287 mounting dimensions against your fixture, since the ACP was built to a DIN-standard format. This model carries the -S magnet, so CMSE / DMSE switches can be reused on the replacement.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED40X80S replacement — usually within 7-8 hours.