This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE25X90 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE25X90 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 ACP25X90 is a double acting DIN-standard tight/compact air cylinder with a Ø25mm bore and 90mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE25X90 (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP25X90 is a double acting compact cylinder in the DIN-standard ACP series, with a 25 mm bore and 90 mm stroke on a 10 mm hard-chrome S45C rod. 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. Air supply is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and fixed TPU bumpers sit at both ends.
Its short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into tight fixture plates and sliding guards. As a rule of thumb, plan on about 147 N (roughly 15 kg of thrust) for real work at 0.5 MPa, which vertically lifts about 7 kg with a 2:1 margin. Note this unit is discontinued: the current-production drop-in is the ACE25X90, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP25X90 |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE25X90 |
| Bore size | Ø25 mm |
| Stroke | 90 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 ACE25X90 (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 ACE25X90 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. |
| ×90 | 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 or small steel workpieces in milling jigs, and the 90 mm stroke clears part loading in a compact envelope.
With about 15 kg of usable thrust and 30-500 mm/s speed, it kicks cartons or trays sideways on a conveyor without taking up the length of a full profile cylinder.
A vertical lift of about 7 kg with margin suits raising small test heads or probe fixtures, and the short body fits inside benchtop guarding.
At 25 mm bore this model sits mid-range: the 20 mm bore pushes 157.1 N at 0.5 MPa while the 32 mm bore reaches 402.1 N, so step up if your jig needs more than about 147 N of usable force. The 90 mm stroke is well inside the 150 mm standard limit for this bore. Rod end is female M6x1.0, ports are M5x0.8, and mounting options include FA/FB flange, LB foot and CA/CB clevis. This code has no magnet, so CMSE or DMSE switches cannot be fitted; order the -S variant if position sensing is needed. For new builds, specify the ACE25X90 instead, since ACP is discontinued.
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 is 50.1 kgf at 1.0 MPa. For reliable duty, plan on roughly 60% of the 0.5 MPa push, about 147 N, which vertically lifts about 7 kg with a 2:1 margin. Operating range is 0.15-1.0 MPa (22-145 psi) with 30-500 mm/s speed.
Order the ACE25X90, the current ISO 21287 successor in the same bore, stroke and force class; confirm the mounting dimensions before swapping since the ACP follows the older DIN-standard layout. This exact code has no magnet fitted, so no CMSE or DMSE switch can be mounted; the optional -S code adds the magnet that enables those switches. Also note the cylinder does not hold position if air is lost - use a rod lock or pilot check valve for a held load.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE25X90 replacement — usually within 7-8 hours.