This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE25X25SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE25X25SB 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 ACP25X25SB is a double acting DIN-standard tight/compact air cylinder with a Ø25mm bore and 25mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE25X25SB (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP25X25SB is a double acting DIN-standard compact cylinder with a 25 mm bore and 25 mm stroke, pushing 245.4 N and pulling 206.2 N at 0.5 MPa (343.6 N / 288.6 N at 0.7 MPa, up to 50.1 kgf theoretical at 1.0 MPa). Its hard-anodized aluminium body with an S45C hard-chrome rod saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding. The S code means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be mounted directly on the body, and the B code gives a male rod thread.
Note this model is discontinued; the current-production drop-in is the ISO 21287 ACE25X25 in the same bore, stroke and force class, so confirm the ISO 21287 mounting dimensions before swapping. For sizing, plan on roughly 147 N (about 15 kg) of real work at 0.5 MPa rather than the full 245.4 N rating, which means it lifts about 12 kg vertically with a 2:1 margin. Speed range is 30-500 mm/s over 0.15-1.0 MPa (22-145 psi) of clean, 40 um filtered air, with a fixed TPU bumper at each end.
| Model | Airtac ACP Compact Cylinder ACP25X25SB |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE25X25SB |
| Bore size | Ø25 mm |
| Stroke | 25 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 ACE25X25SB (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 ACE25X25SB 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. |
| ×25 | 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 ejects stamped terminals or plastic caps from a nest, and the short ISO 21287 body fits between fixture plates where a full-length profile cylinder cannot.
Because the -S magnet is fitted on this model, CMSE or DMSE switches confirm full clamp or release on an electronics test bench, with the male rod thread driving a lever clamp.
With about 15 kg of usable force at 0.5 MPa, the cylinder lowers a 6-8 kg sealing head vertically with margin, using the 25 mm stroke for a short press cycle.
At 25 mm bore this sits mid-range: the 20 mm bore delivers 157.1 N push at 0.5 MPa while the 32 mm bore reaches 402.1 N, so step up if your part weight approaches the 15 kg usable figure. The 25 mm stroke is well inside the 150 mm maximum standard stroke for this bore. Choose the male rod thread (B) when your fixture takes a stud, and FA/FB flange, LB foot or CA/CB clevis mounting to match the ISO 21287 face. A plain cylinder drifts when air is lost, so add a rod lock or pilot check valve if the load must stay put. Order ACE25X25 as the current replacement.
Replacement checklist
At 0.5 MPa it pushes 245.4 N and pulls 206.2 N; at 0.7 MPa that rises to 343.6 N push and 288.6 N pull, with a theoretical maximum of 50.1 kgf at 1.0 MPa. It is double acting with a 25 mm bore, 25 mm stroke, 10 mm rod, M5x0.8 ports, male rod thread, fixed TPU bumpers, 0.15-1.0 MPa (22-145 psi) operating pressure, 1.5 MPa (215 psi) proof pressure, -20 to +70 C, and 30-500 mm/s speed. The model is discontinued; ACE25X25 is the current replacement.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, and FA/FB flange, LB foot or CA/CB clevis mounts bolt to the standard face. The S in ACP25X25SB means the optional -S magnet is fitted, so CMSE or DMSE reed or solid-state switches mount on the body for end-of-stroke sensing. Since ACP is discontinued, confirm the ISO 21287 mounting dimensions of the ACE25X25 successor before ordering.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE25X25SB replacement — usually within 7-8 hours.