This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE20X15S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE20X15S 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 ACP20X15S is a double acting DIN-standard tight/compact air cylinder with a Ø20mm bore and 15mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE20X15S (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP20X15S is a double acting compact cylinder in the DIN-standard ACP series, with a 20 mm bore and a short 15 mm stroke. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, rising to 219.9 N push at 0.7 MPa. The hard-anodized aluminium body with an S45C hard-chrome rod keeps the short ISO 21287-class body roughly 50% shorter in mounting length than an ISO 15552 profile cylinder, so it slots into tight fixtures a full-length body cannot reach. The S in the model code means the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be mounted directly on the body.
Practical sizing: treat about 94 N (0.6 of the 157.1 N push) as the usable working force at 0.5 MPa, which corresponds to lifting roughly 9 kg vertically with a sensible margin. A fixed TPU bumper at each end decelerates the piston but never locks or holds a load - add a rod lock or pilot check valve if the position must be kept when air is lost. Note that this model is discontinued; the current-production replacement is the ACE20X15, which matches the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP follows the older DIN layout.
| Model | Airtac ACP Compact Cylinder ACP20X15S |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE20X15S |
| Bore size | Ø20 mm |
| Stroke | 15 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 ACE20X15S (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 ACE20X15S 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. |
| ×15 | 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 short 15 mm stroke and 157.1 N push at 0.5 MPa suit knocking finished bushings or pins out of a jig nest on an electronics assembly line where body length is restricted.
With the -S magnet fitted, CMSE or DMSE switches confirm the clamp is fully closed before a solder or test cycle starts on a PCB handling station.
About 94 N of practical working force at 0.5 MPa is enough to seat small terminals or grommets in plastic housings on a bench-top press fixture.
For a 15 mm stroke around 157 N of push, the 20 mm bore sits mid-range: a 16 mm bore gives 100.5 N at 0.5 MPa while a 25 mm bore reaches 245.4 N, so step up if your load sits near the upper end. The 15 mm stroke is well inside the 100 mm maximum standard stroke for this bore, so no made-to-order length is involved. This unit carries the -S magnet for CMSE / DMSE switches; choose LB foot or CA/CB clevis mounts to suit the fixture. Order the ACE20X15 as the current drop-in successor and verify the ISO 21287 mounting dimensions first.
Replacement checklist
At 0.5 MPa the cylinder pushes 157.1 N and pulls 117.8 N; at 0.7 MPa that rises to 219.9 N push and 164.9 N pull. The theoretical maximum is 32 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, speed range 30-500 mm/s, and the rod is 10 mm with an M6x1.0 female thread on an M5x0.8 port.
Order the ACE20X15, the current-production ISO 21287 successor made by swapping the P for an E. It matches the same 20 mm bore, 15 mm stroke and force class, and it accepts the FA/FB flange, LB foot and CA/CB clevis mounting family. Because the ACP followed the older DIN-standard layout, confirm the ISO 21287 mounting dimensions against your fixture before swapping.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE20X15S replacement — usually within 7-8 hours.