This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE20X25S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE20X25S 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 ACP20X25S is a double acting DIN-standard tight/compact air cylinder with a Ø20mm 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 ACE20X25S (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP20X25S is a double acting DIN-standard compact cylinder with a 20 mm bore and 25 mm stroke, fitted with the optional -S magnet so CMSE or DMSE reed and solid-state switches can be mounted directly on the hard-anodized aluminium body. At 0.5 MPa it pushes with 157.1 N and pulls with 117.8 N; at 0.7 MPa those rise to 219.9 N and 164.9 N, with a theoretical ceiling of 32 kgf at 1.0 MPa. The 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 jigs and guarding where a full-length body will not fit.
Practically, plan on about 94 N of real work at 0.5 MPa rather than the full 157.1 N rating, and for vertical lifts the rod can raise roughly 16 kg at rated pressure, or about 8 kg with a 2:1 margin. The rod is 10 mm with a female M6x1.0 thread, the air port is M5x0.8, and a fixed TPU bumper sits at both ends. This model is discontinued: the current-production drop-in is the ACE20X25, which matches the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP20X25S |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE20X25S |
| Bore size | Ø20 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 100 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACE20X25S (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 | 157 N | 118 N |
| 0.7 MPa | 220 N | 165 N |
| Max (@1.0 MPa) | 32 kgf | |
The ACE20X25S 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). |
|---|---|
| 20 | 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).
A 25 mm stroke and 157.1 N push at 0.5 MPa is enough to kick a machined bushing off a locating pin, and the short body fits inside the fixture plate where a longer cylinder cannot.
Because this unit carries the -S magnet, a CMSE or DMSE switch confirms the clamp is fully extended before the PLC releases the part - useful on electronics or medical-device lines.
About 94 N of usable force at 0.5 MPa presses sensor potted assemblies or test coupons gently and repeatably, with the M5x0.8 port keeping the manifold footprint tiny.
If 157.1 N of push at 0.5 MPa is more than your jig needs, the 16 mm bore delivers 100.5 N in the same compact footprint; if you need more, the 25 mm bore reaches 245.4 N. Remember that a plain cylinder of this type drifts when air is lost - add a rod lock or pilot check valve if the load must stay put. The -S magnet on this unit supports CMSE / DMSE position switches, and FA/FB flange, LB foot or CA/CB clevis mounting bolts to the standard face. Order the ACE20X25 as the current replacement and verify ISO 21287 dimensions against your fixture.
Replacement checklist
Push is 157.1 N and pull is 117.8 N at 0.5 MPa; at 0.7 MPa push is 219.9 N and pull is 164.9 N, with a theoretical maximum of 32 kgf at 1.0 MPa. It is a double acting compact cylinder, 20 mm bore, 25 mm stroke, 10 mm rod with female M6x1.0 thread, M5x0.8 port, operating on 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s, with a fixed TPU bumper at both ends. The -S magnet is fitted, so CMSE / DMSE switches can be added.
Order the ACE20X25, the current-production ISO 21287 successor: swap the P for an E and you get the same 20 mm bore, 25 mm stroke and force class in a matching short body. Because the ACP was built to a DIN standard, confirm the ISO 21287 mounting hole pattern and overall length against your fixture before the swap.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE20X25S replacement — usually within 7-8 hours.