This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X150-75SB — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X150-75SB 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 ACPJ20X150-75SB 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 ACEJ20X150-75SB (ISO 21287 ACE), in the same bore, stroke and force class.
The ACPJ20X150-75SB is a double acting compact cylinder with an adjustable extend stroke: a stop screw trims the 150 mm stroke by up to 75 mm, giving a usable range of 75-150 mm on site. At 0.5 MPa the 20 mm bore pushes 157.1 N and pulls 117.8 N, rising to 219.9 N on extend at 0.7 MPa. The male rod thread (B code) and PT ports suit direct tooling attachment, and the fitted -S magnet accepts CMSE / DMSE switches for end-of-stroke sensing.
The 150 mm stroke is longer than the 100 mm standard maximum for bore 20, so this unit 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 matters in deep gantries and long-reach jigs. In practice, plan on roughly 94 N of real work at 0.5 MPa, enough to lift about 8 kg vertically with a 2:1 margin. Note that this ACPJ model is discontinued; the current-production replacement is the ACEJ20X150, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-75SB |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X150-75SB |
| 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 ACEJ20X150-75SB (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 ACEJ20X150-75SB 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. |
| -75 | 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 extend force at 0.5 MPa shears small sprues and flash off moulded parts, with the 75-150 mm adjustable range tuned to each mould depth.
The male rod thread drives a gripper down a long 150 mm reach inside a tight gantry frame that a full-length profile cylinder cannot fit.
About 8 kg of vertical load capacity with a 2:1 margin makes this bore suitable for pressing vials and test coupons in bench-top fixtures.
Size both ways: the 16 mm bore gives 100.5 N push at 0.5 MPa, while the next step up, the 25 mm class, roughly doubles the 157.1 N of this bore - pick 20 mm when 100 N is marginal. The 75 mm window suits jobs where the final extend position is tuned after installation; remember the stop only shortens the stroke and does not hold a load if air is lost. FA/FB flange or LB foot mounts bolt to the ISO 21287 face. Because this model is discontinued, order the ACEJ20X150 as the drop-in successor and verify mounting dimensions against the datasheet.
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 -75 code gives a 75 mm adjustment window, so the stop screw trims the 150 mm extend stroke anywhere in a 75-150 mm range. 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 above the 100 mm standard maximum for bore 20.
No - the ACPJ family is discontinued. The current-production drop-in is the ACEJ20X150, which keeps the same 20 mm bore, 150 mm stroke and force class in an ISO 21287 short body. Confirm the ISO 21287 mounting dimensions before swapping, since the ACPJ follows the older DIN-standard footprint. This unit carries the optional -S magnet, so CMSE / DMSE switches can be mounted for position feedback.
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X150-75SB replacement — usually within 7-8 hours.