This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE20X15SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE20X15SB 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 ACP20X15SB 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 ACE20X15SB (ISO 21287 ACE), in the same bore, stroke and force class.
Double acting on a 20 mm bore, the ACP20X15SB delivers 157.1 N push and 117.8 N pull at 0.5 MPa, rising to 219.9 N push at 0.7 MPa. The 15 mm stroke keeps the whole unit inside a very short envelope: the ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into compact jigs and slide assemblies where a full-length cylinder cannot fit. Air supply is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, with a fixed TPU bumper at each end.
This unit carries the optional -S magnet, so CMSE or DMSE reed and solid-state switches can be fitted for end-of-stroke signalling. The B code gives a male rod thread on the 10 mm rod, and the M5x0.8 ports suit small manifolds. Note that this model is discontinued: the current-production drop-in is ACE20X15, which matches the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping. As a rule of thumb, plan on roughly 94 N (about 9.6 kg equivalent) of usable push at 0.5 MPa rather than the full rating.
| Model | Airtac ACP Compact Cylinder ACP20X15SB |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE20X15SB |
| 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 ACE20X15SB (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 ACE20X15SB 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 15 mm stroke and 157.1 N push at 0.5 MPa suit clamping light aluminium brackets in drilling or milling jigs where the fixture depth is only a few centimetres.
With the -S magnet fitted, CMSE or DMSE switches confirm extend and retract on a compact gantry axis running at 30-500 mm/s.
About 9.6 kg of practical vertical push at 0.5 MPa is enough to seat small connectors or labels on an electronics assembly bench.
At 20 mm bore you sit between the 16 mm (100.5 N push at 0.5 MPa) and 25 mm (245.4 N push at 0.5 MPa) sizes - step down if your load is light and space is tight, step up if 157.1 N leaves too little margin. Remember a plain cylinder drifts when air is lost, so add a rod lock or pilot check valve if the load must stay put. This version already includes the -S magnet for CMSE / DMSE switches and the male rod thread; FA/FB flange, LB foot or CA/CB clevis mounting bolts to the standard face. For new projects, order ACE20X15 instead - the ACP line is discontinued.
Replacement checklist
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 push and 164.9 N pull. The theoretical maximum is 32 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof pressure, and speed runs 30-500 mm/s.
Yes. The ACP family is out of production and ACE20X15 is the current ISO 21287 drop-in, matching the same 20 mm bore, 15 mm stroke and force class with the same short body. Confirm the ISO 21287 mounting dimensions against your fixture before swapping, because the ACP followed the DIN standard.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE20X15SB replacement — usually within 7-8 hours.