This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE20X120SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE20X120SB 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 ACP20X120SB is a double acting DIN-standard tight/compact air cylinder with a Ø20mm bore and 120mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE20X120SB (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP20X120SB is a double acting DIN-standard compact cylinder with a 20 mm bore and a made-to-order 120 mm stroke - 20 mm beyond the 100 mm standard limit for this bore. Air drives the piston both ways, a fixed TPU bumper sits at each end, and the male rod thread (B code) plus the optional -S magnet for CMSE / DMSE switches are built into this code. The hard-anodized aluminium body with an S45C hard-chrome 10 mm rod runs on 0.15-1.0 MPa (22-145 psi) at 30-500 mm/s.
At 0.5 MPa this bore 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 32 kgf at 1.0 MPa. Plan on roughly 94 N (about 9.6 kg of force) for real work at 0.5 MPa instead of the full rating, which equals lifting about 8 kg vertically with a 2:1 margin. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight jigs and gantries. Note: this model is discontinued - the current-production drop-in is ACE20X120, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP20X120SB |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE20X120SB |
| Bore size | Ø20 mm |
| Stroke | 120 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 ACE20X120SB (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 ACE20X120SB 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. |
| ×120 | 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 body - about 50% shorter than an ISO 15552 profile cylinder - clamps small aluminium brackets in a machining jig where a full-length cylinder cannot fit, with 157.1 N push at 0.5 MPa.
Because the -S magnet is fitted, CMSE or DMSE switches confirm part ejection on a small electronics assembly station; the 120 mm made-to-order stroke clears a 100 mm tray.
Presses connector caps into housings on a benchtop fixture: about 8 kg vertical lift capacity with a 2:1 margin, using the male rod thread with an I knuckle.
Size the job both ways: the 16 mm bore delivers 100.5 N push at 0.5 MPa, while the 25 mm bore reaches 245.4 N - the 20 mm sits between them at 157.1 N. If the load must stay held when air is lost, add a rod lock or pilot check valve, because this cylinder drifts when the valve centres. The male rod thread suits I/Y rod knuckles, and FA/FB flange, LB foot, CA/CB clevis, CR, SDB pivot and FTC brackets bolt to the ISO 21287 face. The 120 mm stroke is non-standard and made to order. ACP20X120SB is discontinued; order ACE20X120 as the current equivalent.
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. The theoretical maximum is 32 kgf at 1.0 MPa. It is a double acting 20 mm bore with a 10 mm rod, M5x0.8 ports, 0.15-1.0 MPa (22-145 psi) operating pressure and 30-500 mm/s speed.
Bore 20 tops out at 100 mm as a standard stroke, so 120 mm is a non-standard, made-to-order build. The ACP family itself is discontinued: the current-production replacement is ACE20X120, an ISO 21287 compact cylinder in the same bore, stroke and force class. Confirm the ISO 21287 mounting dimensions before swapping, since the ACP was built to the DIN standard.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE20X120SB replacement — usually within 7-8 hours.