This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE20X150S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE20X150S 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 ACP20X150S is a double acting DIN-standard tight/compact air cylinder with a Ø20mm bore and 150mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE20X150S (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder in the DIN-standard ACP series, the ACP20X150S pairs a 20 mm bore with a 150 mm stroke and the -S magnet option, so CMSE or DMSE reed and solid-state switches can be fitted for end-of-stroke sensing. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, rising to 219.9 N push at 0.7 MPa, 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 suits tight jigs, guarding and gantry axes. As a working rule, budget about 94 N (roughly 9.5 kgf) of real work at 0.5 MPa, enough to lift about 8 kg vertically with a 2:1 margin. Note that the 150 mm stroke exceeds the 100 mm standard maximum for this bore, so it is a made-to-order build. The ACP family is discontinued; the current drop-in is ACE20X150, and buyers should confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP20X150S |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE20X150S |
| Bore size | Ø20 mm |
| Stroke | 150 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 ACE20X150S (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 ACE20X150S 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. |
| ×150 | 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 clears a finished connector or sensor cap from a nest, while the 150 mm stroke reaches deep into the fixture plate.
About 9.5 kgf of usable force at 0.5 MPa presses lids or test coupons gently; the -S magnet feeds a CMSE switch signal to the PLC for cycle counting.
Lifts roughly 8 kg with a 2:1 margin when mounted rod-down, and the short body fits under a low guard where a full-length cylinder cannot.
Size both ways: if 157.1 N push at 0.5 MPa is more than the job needs, the 16 mm bore gives 100.5 N; if it falls short, the 25 mm bore delivers 245.4 N. Remember the piston drifts when air is lost - for a held load add a rod lock or pilot check valve. FA/FB flange, LB foot and CA/CB clevis mountings plus I/Y rod knuckles bolt to the standard face. This unit carries the optional -S magnet for CMSE / DMSE switches. Order ACE20X150 as the current-production replacement and verify the ISO 21287 mounting dimensions.
Replacement checklist
Push 157.1 N and pull 117.8 N at 0.5 MPa; push 219.9 N and pull 164.9 N at 0.7 MPa; theoretical maximum 32 kgf at 1.0 MPa. It is double acting, runs on 0.15-1.0 MPa (22-145 psi) air filtered to 40 um, proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, with a 10 mm rod, M6x1.0 female rod thread and M5x0.8 ports.
Yes. The standard stroke limit for bore 20 is 100 mm, so 150 mm is a made-to-order, non-standard build. The ACP series itself is discontinued; the current-production successor ACE20X150 offers the same bore, stroke and force class, so confirm the ISO 21287 mounting dimensions before switching.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE20X150S replacement — usually within 7-8 hours.