This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE25X45SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE25X45SB 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 ACP25X45SB is a double acting DIN-standard tight/compact air cylinder with a Ø25mm bore and 45mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE25X45SB (ISO 21287 ACE), in the same bore, stroke and force class.
Double acting on both strokes, the ACP25X45SB is AirTAC's DIN-standard compact cylinder with a 25 mm bore and a 45 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. The male rod thread (B code) and the fitted -S magnet let you bolt on CMSE or DMSE switches for end-position sensing straight out of the box.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures, sliding guards and pick stations. In practice, plan on roughly 147 N of usable push at 0.5 MPa, which lifts about 12.5 kg vertically with a 2:1 margin. Note this model is discontinued: the current-production drop-in is ACE25X45, same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP25X45SB |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE25X45SB |
| Bore size | Ø25 mm |
| Stroke | 45 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 ACE25X45SB (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 ACE25X45SB 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. |
| ×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 245.4 N push at 0.5 MPa clamps aluminium housings on a machining pallet, and the 45 mm stroke clears the load quickly between cycles.
With the fitted -S magnet, CMSE or DMSE switches confirm the rod is fully home before the next part is presented to the station.
About 12.5 kg of vertical lift with a 2:1 margin suits lowering cartons or trays into a case packer at 30-500 mm/s.
For a 45 mm stroke in this force band, the 25 mm bore is the middle choice: a 20 mm bore gives 157.1 N push at 0.5 MPa, while a 32 mm bore raises it to 402.1 N. If the load must stay put when air is lost, add a rod lock or pilot check valve - the fixed TPU bumpers only soften the ends of travel. Mounting options include FA/FB flange, LB foot and CA/CB clevis, and the -S magnet in this code accepts CMSE / DMSE switches. Order ACE25X45 as the current replacement and verify ISO 21287 hole patterns first.
Replacement checklist
At 0.5 MPa the 25 mm bore delivers 245.4 N push and 206.2 N pull; at 0.7 MPa that becomes 343.6 N push and 288.6 N pull. The theoretical maximum is 50.1 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, port M5x0.8, rod 10 mm with male thread.
Order ACE25X45: swap the P for an E and you get the current-production ISO 21287 compact cylinder in the same bore, stroke and force class. Because the ACP was built to a DIN standard, confirm the ISO 21287 mounting dimensions and the FA/FB, LB or CA/CB bracket hole pattern before swapping it into an existing fixture.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE25X45SB replacement — usually within 7-8 hours.