This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X15-10 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X15-10 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 ACPJ Adjustable Compact Cylinder ACPJ20X15-10 is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 15mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X15-10 (ISO 21287 ACE), in the same bore, stroke and force class.
A double acting compact cylinder with an adjustable stroke, the ACPJ20X15-10 uses a 20 mm bore to deliver 157.1 N of push force and 117.8 N of pull force at 0.5 MPa, rising to 219.9 N on the extend stroke at 0.7 MPa. The -10 code gives a 10 mm adjustment window: an external stop screw trims the 15 mm extend stroke on site, so the usable range is 5-15 mm. The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it slots into cramped jigs and guarding where a full-length body cannot.
This model is discontinued and no longer in production; the current drop-in is the ACEJ20X15, which keeps the same bore, stroke and force class - confirm the ISO 21287 mounting dimensions before swapping, since the ACP was DIN-standard. Note this unit has no magnet fitted, so no CMSE or DMSE switch can be mounted unless you order the optional -S code. For sizing, plan on roughly 94 N (about 0.6 of the push rating) of real work at 0.5 MPa, which corresponds to lifting about 8 kg vertically with a 2:1 margin.
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X15-10 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X15-10 |
| Bore size | Ø20 mm |
| Stroke | 15 mm |
| Acting type | Double acting, adjustable stroke |
| 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 ACEJ20X15-10 (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 ACEJ20X15-10 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×15 | Stroke length in mm. |
| -10 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| 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 holds aluminium brackets against a locating pin on an assembly jig, with the 5-15 mm trimmed stroke matching shallow clamp travel.
A 10 mm rod pushes finished pins off a CNC fixture in under 0.1 s at 500 mm/s, and the short body fits inside the headstock where a profile cylinder would not.
About 8 kg of vertical working load with a 2:1 margin presses flap-closing arms down on a small carton sealer, with the TPU bumper softening both ends of the 15 mm stroke.
At 20 mm bore this sits in the middle of the ACPJ range: the 16 mm bore gives 100.5 N push at 0.5 MPa if your load is lighter, while stepping up adds force only at larger bores outside this series. The 15 mm stroke with a 10 mm trim window suits short clamp-and-return motions; remember the stop screw is a mechanical end stop, not a mid-stroke lock, so the rod still drifts if air is lost. FA/FB flange and LB foot mounts bolt to the ISO 21287 face, and the optional -S magnet enables CMSE / DMSE switches. Order the ACEJ20X15 as the current-production replacement.
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. 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, air filtered to 40 um. Port is M5x0.8, rod thread is female M6x1.0, and the -10 code gives a 10 mm adjustment window on the 15 mm stroke.
Order the ACEJ20X15, the current-production ISO 21287 successor made by swapping the P for an E. It matches the same 20 mm bore, 15 mm stroke and force class, and accepts the FA/FB flange and LB foot mounting family. Because the ACP was DIN-standard rather than ISO 21287, confirm the mounting dimensions against your fixture before swapping. If you need position sensing, order the -S version so the optional magnet is fitted for CMSE / DMSE switches.
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X15-10 replacement — usually within 7-8 hours.