This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE25X70S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE25X70S 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 ACP25X70S is a double acting DIN-standard tight/compact air cylinder with a Ø25mm bore and 70mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE25X70S (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP25X70S is a DIN-standard compact cylinder, double acting with air driving the rod in both directions, built around a 25 mm bore and a 70 mm stroke. At 0.5 MPa it pushes 245.4 N and pulls 206.2 N, rising to 343.6 N push at 0.7 MPa, with a theoretical ceiling of 50.1 kgf at 1.0 MPa. Its hard-anodized aluminium body with an S45C hard-chrome rod runs on 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s, with fixed TPU bumpers at both ends.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures and guarding. The S in the code means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be mounted for end-of-stroke sensing. In practice, plan on about 147 N of usable push at 0.5 MPa, which lifts roughly 15 kg vertically, or about 7 kg with a 2:1 margin. Note this model is discontinued: the current-production drop-in is ACE25X70, and you should confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP25X70S |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE25X70S |
| Bore size | Ø25 mm |
| Stroke | 70 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 150 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACE25X70S (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 | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
The ACE25X70S 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). |
|---|---|
| 25 | Bore size in mm. |
| ×70 | 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 245.4 N push at 0.5 MPa clamps aluminium brackets and small castings in machining fixtures, and the short body fits inside the pallet footprint where a full-length cylinder cannot.
With the fitted -S magnet, CMSE or DMSE switches confirm the 70 mm eject stroke of cartons or trays, letting the PLC interlock the next station.
The 70 mm stroke repositions guide rails between bottle formats, and the compact aluminium body mounts between conveyor frames with LB foot brackets.
For a 70 mm stroke in this force band, the 25 mm bore gives 245.4 N push at 0.5 MPa; drop to a 20 mm bore (157.1 N) for lighter clamping or step up to a 32 mm bore (402.1 N) if the load grows. Keep in mind the piston drifts when air is lost, so add a rod lock or pilot check valve for held loads. The female M6x1.0 rod thread and PT ports suit standard tooling, and FA/FB flange, LB foot or CA/CB clevis mounts bolt to the same face family. Since ACP25X70S is discontinued, order ACE25X70 as the current equivalent and verify the ISO 21287 mounting dimensions.
Replacement checklist
At 0.5 MPa it pushes 245.4 N and pulls 206.2 N; at 0.7 MPa, 343.6 N push and 288.6 N pull; theoretical maximum 50.1 kgf at 1.0 MPa. It is double acting with a 25 mm bore, 70 mm stroke, 10 mm rod, M5x0.8 ports, female M6x1.0 rod thread, 0.15-1.0 MPa (22-145 psi) operating range, 30-500 mm/s speed and fixed TPU bumpers both ends.
Order ACE25X70, the current ISO 21287 successor: swap the P for an E and you get the same bore, stroke and force class in a short-body compact cylinder. Confirm the ISO 21287 mounting dimensions against your existing fixture before the swap, since the ACP was built to the older DIN-standard pattern. The ACE also accepts the optional -S magnet for CMSE / DMSE switches.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE25X70S replacement — usually within 7-8 hours.