This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X150-10S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X150-10S 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 ACPJ20X150-10S is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø20mm bore and 150mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ20X150-10S (ISO 21287 ACE), in the same bore, stroke and force class.
Double acting and adjustable in stroke, the ACPJ20X150-10S pushes 157.1 N and pulls 117.8 N at 0.5 MPa (219.9 N / 164.9 N at 0.7 MPa) from a 20 mm bore. The -10 code adds a stop screw that trims the extend stroke by up to 10 mm, giving a usable 140-150 mm range set on site. The 150 mm stroke is longer than the 100 mm standard maximum for this bore, so it is a made-to-order build.
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 fixtures and guarding. Because the 157.1 N push works out to roughly 16 kgf, plan on lifting about 8 kg vertically once you keep a 2:1 margin. This model carries the optional -S magnet, so CMSE / DMSE switches can be mounted directly. Note the ACPJ family is discontinued: the current-production drop-in is the ACEJ20X150, and you should confirm ISO 21287 mounting dimensions before swapping, since the ACP series is DIN-standard.
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-10S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X150-10S |
| Bore size | Ø20 mm |
| Stroke | 150 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 ACEJ20X150-10S (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 ACEJ20X150-10S 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. |
| ×150 | 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 slides filled cartons off a forming station, and the 10 mm trim lets the operator fine-tune the 150 mm stroke to the lane width.
With a 2:1 margin the rod lifts about 8 kg vertically, enough for a loaded vial rack, while the -S magnet and a DMSE switch confirm home position.
The short body fits where a full-length profile cylinder cannot, and the 140-150 mm adjustable range absorbs jig tolerances without remachining the stop.
At 20 mm bore this sits above the 16 mm size (100.5 N push at 0.5 MPa) and below the next force class up, so pick it when your clamp or lift needs roughly 90-150 N of real work. Treat about 94 N (0.6 of the push rating) as the practical working force at 0.5 MPa. The stop screw is a mechanical end stop for the extend stroke only - it never holds a load if air is lost. FA/FB flange and LB foot mountings bolt to the standard face, and the fitted -S magnet accepts CMSE / DMSE switches. Order the ACEJ20X150 as the current replacement and verify ISO 21287 mounting dimensions 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. The -10 code gives a 10 mm adjustment window, so the 150 mm stroke can be trimmed to any extend length from 140 to 150 mm with the stop screw. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed 30-500 mm/s, and the 150 mm stroke is a made-to-order length because the bore 20 standard maximum is 100 mm.
It is a short-body compact cylinder with a hard-anodized aluminium body, S45C hard-chrome rod, M5x0.8 ports, a female M6x1.0 rod thread and a fixed TPU bumper at both ends. The body saves about 50% of the mounting length of an ISO 15552 profile cylinder. This model carries the optional -S magnet, so CMSE / DMSE reed or solid-state switches mount directly on the body. The ACPJ is discontinued; the current-production successor is the ACEJ20X150 - confirm ISO 21287 mounting dimensions before ordering the swap.
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X150-10S replacement — usually within 7-8 hours.