This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE40X15B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE40X15B 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 ACP Compact Cylinder ACP40X15B is a double acting DIN-standard tight/compact air cylinder with a Ø40mm bore and 15mm stroke, 1/8" air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE40X15B (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP40X15B is a double acting DIN-standard compact cylinder with a 40 mm bore and a short 15 mm stroke, fitted with a male rod thread (the B code) and a fixed TPU bumper at each end. Air extends and retracts the 12 mm S45C hard-chrome rod, and the hard-anodized aluminium body keeps the mounting length roughly half that of an ISO 15552 profile cylinder, so it slots into tight fixtures. At 0.5 MPa it pushes 628.3 N and pulls 571.8 N; at 0.7 MPa those figures rise to 879.6 N and 800.5 N, with a theoretical peak of 128.1 kgf at 1.0 MPa.
Practical sizing: plan on about 377 N of usable push at 0.5 MPa (roughly 60% of the rating), which corresponds to lifting about 32 kg vertically with a 2:1 margin. The port is 1/8" on this bore, speed runs 30-500 mm/s, and pressure spans 0.15-1.0 MPa (22-145 psi). This model is discontinued; the current-production drop-in is ACE40X15, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP40X15B |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE40X15B |
| Bore size | Ø40 mm |
| Stroke | 15 mm |
| Acting type | Double acting |
| 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 ACE40X15B (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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 572 N |
| 0.7 MPa | 880 N | 800 N |
| Max (@1.0 MPa) | 128 kgf | |
The ACE40X15B produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| ACP | DIN compact cylinder (double-acting, discontinued). |
|---|---|
| 40 | Bore size in mm. |
| ×15 | 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 15 mm stroke and 628.3 N push at 0.5 MPa give about 377 N of real clamping force, enough to seat aluminium parts in a drill jig inside a cramped fixture plate.
A short body that saves about 50% of the length of an ISO 15552 profile cylinder lets this 40 mm bore eject filled cartons from a tight sealing station at up to 500 mm/s.
With 571.8 N of pull at 0.5 MPa, the male-threaded rod kicks bottles between lanes; the fixed TPU bumper damps the stroke ends without extra hardware.
For a 15 mm stroke at this force class, compare the 32 mm bore (402.1 N push at 0.5 MPa) if the load is lighter, or the 50 mm bore (981.7 N) if you need headroom. The male rod thread suits direct attachment to tooling plates and linkages without a knuckle. If you need position feedback, order the -S variant, which carries the optional magnet for CMSE / DMSE switches - this B-coded model has no magnet. Remember the piston drifts when air is lost, so add a rod lock or pilot check valve for held loads. Order ACE40X15 as the current replacement.
Replacement checklist
At 0.5 MPa it pushes 628.3 N and pulls 571.8 N; at 0.7 MPa it pushes 879.6 N and pulls 800.5 N. The theoretical maximum is 128.1 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, and the port is 1/8". For real work, size around 377 N of push at 0.5 MPa, which lifts about 32 kg vertically with a 2:1 margin.
No - the ACP family is discontinued. The current-production drop-in is ACE40X15 (swap the P for an E), an ISO 21287 compact cylinder in the same bore, stroke and force class. Before swapping, confirm the ISO 21287 mounting dimensions, since the ACP was built to the DIN standard. Mounting options in the ACE family include FA/FB flange, LB foot and CA/CB clevis, and the -S magnet option enables CMSE / DMSE switches.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE40X15B replacement — usually within 7-8 hours.