This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE25X45 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE25X45 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 ACP25X45 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 ACE25X45 (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP25X45 is a double acting DIN-standard compact cylinder with a 25 mm bore and 45 mm stroke. Air drives the rod in both directions, and a fixed TPU bumper at each end absorbs end-of-travel shock. At 0.5 MPa it pushes 245.4 N and pulls 206.2 N; at 0.7 MPa those rise to 343.6 N and 288.6 N, with a theoretical maximum of 50.1 kgf at 1.0 MPa. Its short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and guarding where a full-length body will not fit.
For sizing in practice, plan on about 147 N of usable push at 0.5 MPa (roughly 60% of the rated force), which corresponds to lifting about 12 kg vertically with a 2:1 margin. The hard-anodized aluminium body carries an S45C hard-chrome rod, the rod end is female M6x1.0, and the air port is M5x0.8. Note this model is discontinued: the current-production replacement is the ACE25X45, a drop-in successor in the same bore, stroke and force class - confirm ISO 21287 mounting dimensions before swapping. The optional -S magnet enables CMSE / DMSE switches; without it no magnet is fitted.
| Model | Airtac ACP Compact Cylinder ACP25X45 |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE25X45 |
| 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 ACE25X45 (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 ACE25X45 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 small aluminium brackets in drill jigs, and the short body fits inside fixture plates too shallow for a full-length cylinder.
A 45 mm stroke is enough to push cartons or blister trays off a narrow conveyor lane at speeds up to 500 mm/s between cycles.
With about 12 kg of vertical lift capacity at a 2:1 margin, the bore suits small sample presses and lift-and-lower stations on benchtop automation.
At 25 mm bore this unit delivers 245.4 N push at 0.5 MPa. If your load needs less, the ACP20X45 gives 157.1 N at the same pressure; if you need more headroom, step up to the ACP32X45 at 402.1 N. Stroke 45 mm sits well inside the 150 mm maximum standard stroke for this bore, so no made-to-order length is involved. Match the mounting to your fixture - FA/FB flange, LB foot or CA/CB clevis - and order the -S code only if you need position sensing with CMSE / DMSE switches. A plain unit drifts when air is removed, so add a rod lock or pilot check valve if the load must stay put. Buy the ACE25X45 instead: this ACP model is discontinued.
Replacement checklist
Push is 245.4 N and pull 206.2 N at 0.5 MPa; at 0.7 MPa push rises to 343.6 N and pull to 288.6 N, with a theoretical maximum of 50.1 kgf at 1.0 MPa. It is a double acting compact cylinder, 25 mm bore, 45 mm stroke, 10 mm rod, M5x0.8 port, female M6x1.0 rod thread, operating pressure 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, fixed TPU bumpers at both ends.
Order the ACE25X45, the current-production ISO 21287 successor made by swapping the P for an E. It matches the same bore, stroke and force class with a similar short body, but confirm the ISO 21287 mounting dimensions against your fixture before swapping, since the ACP was built to the older DIN standard. FA/FB flange, LB foot and CA/CB clevis mountings carry over, and the optional -S magnet for CMSE / DMSE switches is available on the ACE as well.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE25X45 replacement — usually within 7-8 hours.