This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE20X5SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE20X5SB 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 ACP20X5SB is a double acting DIN-standard tight/compact air cylinder with a Ø20mm bore and 5mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE20X5SB (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP20X5SB is a double acting DIN-standard compact cylinder with a 20 mm bore and a very short 5 mm stroke, built on a hard-anodized aluminium body with an S45C hard-chrome rod and a fixed TPU bumper at each end. At 0.5 MPa it pushes with 157.1 N and pulls with 117.8 N, rising to 219.9 N push at 0.7 MPa, with a theoretical peak of 32 kgf at 1.0 MPa. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into cramped fixtures where a full-length body cannot. The male rod thread (B code) and PT ports are ready for standard knuckles and fittings.
Because the S code is in this model, the optional -S magnet is fitted, so CMSE or DMSE reed and solid-state switches can be clamped on for end-of-stroke sensing. In practice, plan on roughly 94 N of usable push at 0.5 MPa, which lifts about 8 kg vertically with a 2:1 margin. Note that this model is discontinued: the current-production drop-in is the ACE20X5, which matches the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP20X5SB |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE20X5SB |
| Bore size | Ø20 mm |
| Stroke | 5 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 ACE20X5SB (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 ACE20X5SB 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. |
| ×5 | 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).
A 5 mm kick with 157.1 N at 0.5 MPa nudges pressed pins or finished parts off a nest into a chute, and the CMSE switch confirms the eject is home.
Short-trap clamping of PCB trays where the -S magnet and DMSE switch prove the clamp closed before the solder or test cycle starts.
The male rod thread drives a locating pin that rises 5 mm to lock a rotary dial or jig plate, using about 8 kg of vertical lift capability with margin.
At 5 mm stroke this is a short-throw positioning cylinder, not a long-reach pusher. If 157.1 N at 0.5 MPa is marginal, step up to the 25 mm bore (245.4 N push); if the load is light, the 16 mm bore (100.5 N push) saves more space. The 5 mm stroke sits well inside the 100 mm maximum standard stroke for this bore, so it is a catalogue item. FA/FB flange, LB foot and CA/CB clevis mounts bolt to the same face family. A plain cylinder drifts when air is lost - add a rod lock or pilot check valve if the load must stay put. For new designs, order the ACE20X5 instead, as the ACP line is discontinued.
Replacement checklist
At 0.5 MPa: 157.1 N push and 117.8 N pull. At 0.7 MPa: 219.9 N push and 164.9 N pull. Theoretical maximum is 32 kgf at 1.0 MPa. As a rule of thumb, count on about 94 N of usable push at 0.5 MPa, which lifts roughly 8 kg vertically with a 2:1 safety margin. Operating range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, air filtered to 40 um.
Order the ACE20X5, the current-production ISO 21287 successor (swap the P for an E). It matches the same 20 mm bore, 5 mm stroke and force class, with the same mounting family (FA/FB flange, LB foot, CA/CB clevis) and the optional -S magnet for CMSE / DMSE switches. Because the ACP was DIN-standard, 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 ACE20X5SB replacement — usually within 7-8 hours.