This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE20X25SLB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE20X25SLB 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 ACP20X25SLB 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 ACE20X25SLB (ISO 21287 ACE), in the same bore, stroke and force class.
This double acting AirTAC ACP20X25SLB packs a 20 mm bore and 25 mm stroke into a DIN-standard compact body with a fixed TPU bumper at each end and an optional -S magnet already fitted, so CMSE or DMSE reed and solid-state switches can be mounted directly on the tube. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa those figures rise to 219.9 N and 164.9 N, with a theoretical peak of 32 kgf at 1.0 MPa. The hard-anodized aluminium body and S45C hard-chrome rod run on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits tight jigs and guarding where a full-length body will not fit. In practice, plan on roughly 94 N of usable push at 0.5 MPa, which lifts about 16 kg vertically, or about 8 kg with a 2:1 margin. Note that this model is discontinued: the current-production drop-in is ACE20X25, same bore, stroke and force class, so confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP20X25SLB |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE20X25SLB |
| 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 ACE20X25SLB (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 ACE20X25SLB 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).
The 157.1 N push at 0.5 MPa (219.9 N at 0.7 MPa) presses dowel pins or bushings into aluminium housings on an electronics assembly bench, with the 25 mm stroke matching shallow insert depths.
Because the -S magnet is fitted, CMSE or DMSE switches confirm open/closed position on a fixture clamp for a PCB test rig, all within a body about half the length of an ISO 15552 profile cylinder.
Mounted LB-foot under a small indexing table, the bore lifts roughly 8 kg vertically with a 2:1 margin, enough for trays of vials or small castings in a packaging cell.
At 20 mm bore you sit mid-range: a 16 mm bore gives 100.5 N push at 0.5 MPa, while a 25 mm bore raises it to 245.4 N, so step up if your part or clamp needs more than about 94 N of working force. The 25 mm stroke is well inside the 100 mm maximum standard stroke for this bore, so it is a catalogue item, not a made-to-order build. This unit carries the -S magnet code and an LB foot mount; if you need flange or clevis fixing instead, order FA/FB or CA/CB. Because a plain cylinder drifts when air is lost, add a rod lock or pilot check valve for held loads. Order ACE20X25 as the current replacement.
Replacement checklist
Push is 157.1 N and pull 117.8 N at 0.5 MPa; at 0.7 MPa push is 219.9 N and pull 164.9 N, with a theoretical maximum of 32 kgf at 1.0 MPa. It is a 20 mm bore, 25 mm stroke, double-acting compact cylinder with a 10 mm rod, M5x0.8 port, female M6x1.0 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.
Order 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 short-body aluminium cylinder. Before swapping, confirm the ISO 21287 mounting dimensions against your LB foot fixture, since the ACP was built to the DIN standard. The ACE family also accepts the same FA/FB, LB and CA/CB mounting hardware and CMSE/DMSE switch options.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE20X25SLB replacement — usually within 7-8 hours.