This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE20X20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE20X20S 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 ACP20X20S is a double acting DIN-standard tight/compact air cylinder with a Ø20mm bore and 20mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE20X20S (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP20X20S is a double acting DIN-standard compact cylinder with a 20 mm bore and 20 mm stroke, fitted with the optional -S magnet so CMSE or DMSE reed and solid-state switches can be mounted for end-of-stroke sensing. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa those rise to 219.9 N and 164.9 N, with a theoretical maximum of 32 kgf at 1.0 MPa. Its hard-anodized aluminium body with an S45C hard-chrome rod runs on 0.15-1.0 MPa (22-145 psi) filtered air at 30-500 mm/s.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why this bore and stroke suit cramped jigs, slide clamps and small gantries. As a buyer rule of thumb, plan on about 94 N of usable push at 0.5 MPa (roughly 60% of the rating), which lifts about 8 kg vertically with a 2:1 margin. Fixed TPU bumpers at both ends soften the stroke ends only - they never hold a load, so use a rod lock or pilot check valve where position must be kept. This model is discontinued; the current-production drop-in is ACE20X20, and you should confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP20X20S |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE20X20S |
| Bore size | Ø20 mm |
| Stroke | 20 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 ACE20X20S (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 ACE20X20S 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. |
| ×20 | 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).
Pressing dowel pins or bushings into aluminium housings on an electronics assembly bench, where the 157.1 N push at 0.5 MPa is enough and the 20 mm stroke keeps the fixture short.
Driving a small divertor slide on a packaging line with CMSE or DMSE switches confirming extend and retract, enabled by the -S magnet fitted on this model.
Clamping PCB test fixtures or small brackets inside a guarded cell, where the short body fits roughly half the length an ISO 15552 profile cylinder would need.
At 20 mm bore this sits between the 16 mm (100.5 N push at 0.5 MPa) and 25 mm (245.4 N push at 0.5 MPa) sizes, so step up to 25 mm if your fixture needs more margin, or down to 16 mm for lighter clamping. The 20 mm stroke is well inside the 100 mm maximum standard stroke for this bore. Female M6x1.0 rod thread, M5x08 ports on PT, and FA/FB flange, LB foot or CA/CB clevis mounting bolt to the standard face; the -S magnet on this unit accepts CMSE / DMSE switches. ACP20X20S is discontinued - order ACE20X20 as the current equivalent and verify the ISO 21287 footprint first.
Replacement checklist
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa it pushes 219.9 N and pulls 164.9 N; theoretical maximum is 32 kgf at 1.0 MPa. In practice budget about 94 N of working push at 0.5 MPa, which corresponds to lifting roughly 8 kg vertically with a 2:1 safety margin. Operating range is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-500 mm/s.
Order ACE20X20, the current ISO 21287 compact cylinder from AirTAC: swap the P for an E and you get the same 20 mm bore, 20 mm stroke and force class. Because the ACP was built to a DIN standard, confirm the ISO 21287 mounting dimensions and your FA/FB, LB or CA/CB bracket fit before swapping. The ACE also carries the optional magnet for CMSE / DMSE switches when ordered with the -S code.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE20X20S replacement — usually within 7-8 hours.