This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACED40X45S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACED40X45S 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 ACPD40X45S is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø40mm bore and 45mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED40X45S (ISO 21287 ACE), in the same bore, stroke and force class.
Double acting with a rod leaving both covers, the ACPD40X45S pushes and pulls with identical output: 571.8 N at 0.5 MPa and 800.5 N at 0.7 MPa in either direction, because both strokes work on the rod-side area of the 40 mm bore. The through-rod resists rotation and light side load, gives a symmetric mounting face, and the rear rod is a handy carrier for a sensor flag. This unit carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be clipped straight on. Note the model is discontinued; the current-production successor is ACED40X45.
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 jigs, guarding and gantry axes. A fixed TPU bumper sits at each end, the hard-anodized aluminium body carries an S45C hard-chrome rod, and speed runs 30-500 mm/s at 0.15-1.0 MPa (22-145 psi). In practice, plan on about 343 N of real work at 0.5 MPa - roughly 29 kg of vertical lift with a 2:1 margin - and remember the piston drifts if air is lost, so add a rod lock or pilot check for a held load.
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD40X45S |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED40X45S |
| Bore size | Ø40 mm |
| Stroke | 45 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 ACED40X45S (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. |
| ×45 | 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 45 mm stroke and 571.8 N equal force both ways let one through-rod clamp a machined aluminium bracket from either side of a CNC fixture without reversing the port plumbing.
A rear rod carrying a sensor flag drives a carton pusher at 30-500 mm/s, while the front rod drives a synchronized reject finger on the same conveyor pitch.
In a sample-handling module, the symmetric double-rod mount slides a tray between two positions, with CMSE switches (enabled by the -S magnet) confirming each end.
At 45 mm stroke and 571.8 N per side, this bore covers clamping and reciprocating tasks up to about 343 N of usable force at 0.5 MPa. If the load is lighter, the 32 mm size (345.6 N) halves the envelope; if you need more, step up to the 50 mm bore at 881.2 N. FA/FB flanges, LB feet and CA/CB clevises bolt to the standard face, and the -S magnet already fitted here accepts CMSE / DMSE switches for end-of-stroke sensing. For new builds, order ACED40X45 instead - same bore, stroke and force class - and confirm the ISO 21287 mounting dimensions before swapping.
Replacement checklist
Because a rod exits both covers, force is equal in both directions: 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. Both strokes use the rod-side area of the 40 mm bore, so there is no push-versus-pull difference. Operating range is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, with a fixed TPU bumper at each end and FA/FB, LB or CA/CB mounting options. The ACPD family is discontinued; the current drop-in is ACED40X45 (swap the P for an E) in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before ordering.
Send us the quantity and destination. We confirm price, stock and lead time on the ACED40X45S replacement — usually within 7-8 hours.