This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ20X150-10B — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ20X150-10B 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 ACPJ20X150-10B 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 ACEJ20X150-10B (ISO 21287 ACE), in the same bore, stroke and force class.
Double acting compact cylinder with an adjustable extend stroke, the ACPJ20X150-10B uses a 20 mm bore and a 150 mm made-to-order stroke (the standard maximum for this bore is 100 mm). A stop screw trims the extend stroke by up to 10 mm on site, giving a usable range of 140-150 mm, and a fixed TPU bumper sits at each end. At 0.5 MPa it pushes 157.1 N and pulls 117.8 N, rising to 219.9 N push at 0.7 MPa.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, so it slots into tight gantries and guarding where a full-length body cannot. As a rule of thumb, plan on roughly 94 N (about 9.6 kg) of real work at 0.5 MPa, which lifts about 8 kg vertically with a 2:1 margin. The rod end is male thread (B code) and the port is M5x0.8. Note: this model is discontinued - the current drop-in is ACEJ20X150, so confirm ISO 21287 mounting dimensions before swapping.
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ20X150-10B |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ20X150-10B |
| 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 ACEJ20X150-10B (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 ACEJ20X150-10B 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 ejects stamped terminals or moulded inserts from nests, with the 10 mm window letting technicians trim the extend stroke to clear the fixture.
With about 9.6 kg of usable side thrust at 0.5 MPa, the cylinder nudges cartons or blisters off a conveyor into a chute, and the short body fits under low guarding.
The rod lifts about 8 kg vertically with a 2:1 margin, suiting probe or sensor heads lowered onto PCB assemblies within the 140-150 mm trimmed stroke range.
Size up or down by force: bore 16 gives 100.5 N push at 0.5 MPa for lighter clamping, while stepping to a larger bore adds thrust if 157.1 N is marginal. The 150 mm stroke is non-standard for bore 20 (max standard 100 mm), so it is built to order. The 10 mm window only shortens the extend stroke - it is a mechanical end stop, not a mid-stroke lock, so the piston still drifts if air is lost. FA/FB flange or LB foot mounting bolts to the standard face; without the -S code there is no magnet, so no CMSE / DMSE switch can be read. Replacement: ACEJ20X150.
Replacement checklist
At 0.5 MPa it pushes 157.1 N and pulls 117.8 N; at 0.7 MPa push is 219.9 N and pull 164.9 N; theoretical maximum is 32 kgf at 1.0 MPa. The -10 code gives a 10 mm adjustment window: the stop screw shortens the 150 mm extend stroke to any setting from 140 to 150 mm. 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 since bore 20 normally tops out at 100 mm.
It is a short-body compact cylinder with a hard-anodized aluminium body and S45C hard-chrome rod, saving about 50% of the mounting length of an ISO 15552 profile cylinder. Fixed TPU bumpers decelerate at both ends, and FA/FB flange or LB foot mounting bolts to the standard face. The ACPJ family is discontinued; the current-production drop-in is ACEJ20X150 - confirm ISO 21287 mounting dimensions before swapping.
Send us the quantity and destination. We confirm price, stock and lead time on the ACEJ20X150-10B replacement — usually within 7-8 hours.