This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACE20X30B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACE20X30B 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 ACP20X30B is a double acting DIN-standard tight/compact air cylinder with a Ø20mm bore and 30mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACE20X30B (ISO 21287 ACE), in the same bore, stroke and force class.
The ACP20X30B is a double acting compact cylinder in the discontinued AirTAC ACP DIN-standard series, with a 20 mm bore and a 30 mm stroke driving a 10 mm rod through a male thread (the B code). Air extends and retracts the piston, and a fixed TPU bumper at each end absorbs end-of-travel contact. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, rising to 219.9 N push and 164.9 N pull at 0.7 MPa, with a theoretical ceiling of 32 kgf at 1.0 MPa. The hard-anodized aluminium body and S45C hard-chrome rod run on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), 30-500 mm/s, from -20 to +70 C.
The short ISO 21287-class body saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why this bore/stroke pair suits tight jigs and guarding where a full-length body cannot fit. As a rule of thumb, plan on about 94 N of usable push at 0.5 MPa (roughly 60% of the rating), which lifts about 9 kg vertically - halve that for a 2:1 margin and you can comfortably raise a 4-5 kg part. Note that no magnet is fitted on this code: the optional -S version is required before CMSE or DMSE switches will work. This model is discontinued; the current-production drop-in is ACE20X30, so confirm the ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACP Compact Cylinder ACP20X30B |
|---|---|
| Series | ACP DIN compact cylinder (discontinued) |
| Replacement | ACE20X30B |
| Bore size | Ø20 mm |
| Stroke | 30 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 ACE20X30B (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 ACE20X30B 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. |
| ×30 | 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 30 mm stroke and 157.1 N push at 0.5 MPa clamps brackets or machined caps in drilling and tapping jigs, with the short body fitting inside the jig plate footprint.
Mounted beside a packaging line conveyor, the cylinder kicks small cartons or blisters off the belt at up to 500 mm/s, with the TPU bumper quieting each end stop.
With the male rod thread picking up a knuckle, the bore 20 package lifts about 9 kg vertically at 0.5 MPa - enough for raising a 4-5 kg fixture pin with a 2:1 margin.
Size both ways before committing: the 16 mm bore (100.5 N push at 0.5 MPa) covers lighter pick-and-place, while the 25 mm bore (245.4 N push) gives about 56% more force if your cycle grows. For a 30 mm stroke the 20 mm bore is a sensible middle ground at 157.1 N push. Remember a plain ACP20X30B drifts when air is lost - add a rod lock or pilot check valve if the load must stay put. Foot (LB), flange (FA/FB) and clevis (CA/CB) mountings bolt to the standard face, and the male rod thread suits I/Y knuckles. Order the -S code if you need position sensing. For new builds, specify the ACE20X30 instead, as this ACP is discontinued.
Replacement checklist
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa, 219.9 N push and 164.9 N pull; theoretical maximum is 32 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-500 mm/s, temperature -20 to +70 C, fluid air filtered to 40 um. The port is M5x0.8 and the rod is 10 mm with a male thread.
The short-body build saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight fixtures. It is a fixed-bumper design with a hard-anodized aluminium body, and it is discontinued: the current-production replacement is ACE20X30, the ISO 21287 successor in the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping.
Send us the quantity and destination. We confirm price, stock and lead time on the ACE20X30B replacement — usually within 7-8 hours.