This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ12X30-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ12X30-20S 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.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-20S
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-20S is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm 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 ACEJ12X30-20S (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke30 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X30-20S
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-20S
This discontinued AirTAC ACPJ12X30-20S is a double acting compact cylinder with a 20 mm adjustable-stroke window: a stop screw trims the 30 mm extend stroke down to 10 mm on site. At 0.5 MPa it pushes 56.5 N and pulls 42.4 N, and the -S code means the magnet is fitted, so CMSE or DMSE reed and solid-state switches can be mounted directly on the hard-anodized aluminium body.
The short ISO 21287-class body saves about 50% of the mounting length of an ISO 15552 profile cylinder, which is why it suits slim jigs and guarding where a full-length body will not fit. A practical sizing rule: about 0.6 of the 56.5 N push, roughly 34 N, is what you should plan for real work at 0.5 MPa, which corresponds to lifting about 3.5 kg vertically with a 2:1 margin. Fixed TPU bumpers sit at both ends, the S45C rod is hard-chromed with an M3x0.5 female thread, and the current-production replacement is the ACEJ12X30.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-20S Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-20S |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X30-20S |
| Bore size | Ø12 mm |
| Stroke | 30 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M3×0.5 |
| 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 50 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACEJ12X30-20S (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.
Theoretical Output Force (Ø12mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 57 N | 42 N |
| 0.7 MPa | 79 N | 59 N |
| Max (@1.0 MPa) | 12 kgf | |
The ACEJ12X30-20S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-20S
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×30 | Stroke length in mm. |
| -20 | 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).
Where the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-20S Is Used
Micro jig clamping
The 56.5 N push at 0.5 MPa and a 10-30 mm trimmed stroke suit small fixture clamps on electronics assembly benches where space is tight.
Position-checked ejector
With the -S magnet fitted, CMSE or DMSE switches confirm extend and retract on a 30 mm ejection move in a compact test station.
Light press fitting
About 34 N of usable force at 0.5 MPa presses small bushings or labels in watch and sensor assembly cells.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-20S with the ACEJ12X30-20S
Size both ways before ordering: the bore 16 ACPJ pushes 100.5 N at 0.5 MPa if 56.5 N is marginal, while the smaller bore 12 class here suits light clamping and part presence moves. The stop screw only shortens the extend stroke within the 20 mm window and does not hold a load on air loss, so add an external stop if position must be kept. FA/FB flange and LB foot mountings bolt to the ISO 21287 face. Since this model is discontinued, order the ACEJ12X30 and confirm the ISO 21287 mounting dimensions before swapping, as the ACP family was DIN-standard.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X30-20S
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X30-20S FAQ
Push is 56.5 N and pull 42.4 N at 0.5 MPa; at 0.7 MPa push rises to 79.2 N and pull to 59.4 N, with a theoretical maximum of 11.5 kgf at 1.0 MPa. The bore is 12 mm with a 6 mm rod, M3x0.5 female rod thread, M5x0.8 ports, 0.15-1.0 MPa (22-145 psi) operating range, 30-500 mm/s speed and fixed TPU bumpers at both ends. The 20 mm window lets the stop screw trim the extend stroke from 30 mm down to 10 mm.
No, this model is discontinued. The current-production drop-in is the ACEJ12X30, which matches the same bore, stroke and force class in the ISO 21287 short-body format. Because the ACPJ was built to a DIN-standard compact design, confirm the ISO 21287 mounting dimensions and port positions against your fixture before swapping. The -S magnet on this unit carries over as an option on the ACEJ for CMSE / DMSE switch mounting.
Related AirTAC ACE Cylinders
Request a Quote for the ACEJ12X30-20S
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