This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is ACEJ12X80-50 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the ACEJ12X80-50 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 ACPJ12X80-50
The AirTAC Airtac ACPJ Adjustable Compact Cylinder ACPJ12X80-50 is a double acting, adjustable stroke DIN-standard tight/compact air cylinder with a Ø12mm bore and 80mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACEJ12X80-50 (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ12 mm
- Stroke80 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM3×0.5
- StatusDiscontinued → ACEJ12X80-50
About the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X80-50
This compact cylinder is double acting, so air drives the rod out and pulls it back, and the -50 code adds a 50 mm adjustment window: an external stop screw trims the 80 mm extend stroke down to any setting in a 30-80 mm range. The 12 mm bore delivers 56.5 N push and 42.4 N pull at 0.5 MPa, rising to 79.2 N at 0.7 MPa, with a theoretical peak of 11.5 kgf at 1.0 MPa. The 80 mm stroke exceeds the 50 mm standard maximum for this bore, so it is a made-to-order build.
The hard-anodized aluminium body with an S45C hard-chrome rod keeps the mounting length roughly 50% shorter than an ISO 15552 profile cylinder, which is why it slots into tight fixture plates and guarding where a full-length body will not fit. In practice, plan on about 34 N (roughly 3.4 kgf) of usable push at 0.5 MPa, enough to lift about 2.9 kg vertically with a 2:1 margin. Note this model is discontinued: the current-production replacement is the ACEJ12X80, and you should confirm the ISO 21287 mounting dimensions before swapping.
Airtac ACPJ Adjustable Compact Cylinder ACPJ12X80-50 Technical Specifications
| Model | Airtac ACPJ Adjustable Compact Cylinder ACPJ12X80-50 |
|---|---|
| Series | ACPJ DIN compact cylinder (discontinued) |
| Replacement | ACEJ12X80-50 |
| Bore size | Ø12 mm |
| Stroke | 80 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 ACEJ12X80-50 (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 ACEJ12X80-50 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 ACPJ12X80-50
| ACPJ | DIN compact cylinder (adjustable-stroke, discontinued). |
|---|---|
| 12 | Bore size in mm. |
| ×80 | Stroke length in mm. |
| -50 | 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 ACPJ12X80-50 Is Used
Small-parts ejection on assembly fixtures
The 30-80 mm adjustable extend range lets a jig builder dial in the exact eject distance for connector or pin trays, with 56.5 N of push at 0.5 MPa clearing lightweight parts reliably.
Indexing slide in a compact test station
With the optional -S magnet and CMSE / DMSE switches, end-of-travel signals confirm each 80 mm index of a sample holder, all inside a body about 50% shorter than an ISO 15552 profile cylinder.
Light clamping of PCB or lens carriers
About 34 N of usable clamping force at 0.5 MPa holds delicate circuit boards or optical trays during a solder or inspection cycle, and the stop screw trims the stroke to the carrier height.
Replacing the Airtac ACPJ Adjustable Compact Cylinder ACPJ12X80-50 with the ACEJ12X80-50
Size this bore when your load sits under about 34 N of real working force at 0.5 MPa; if you need more, the 16 mm bore gives 100.5 N push and the 20 mm bore 157.1 N at the same pressure. The stop screw only shortens the extend stroke and is not a mid-stroke lock - on air loss the piston still drifts, so add a separate valve or lock if position must hold. FA/FB flange and LB foot mountings bolt to the standard face, and if you need reed or solid-state switches, order the -S variant with the optional magnet for CMSE / DMSE sensors - this version has no magnet fitted. For new projects, specify the ACEJ12X80 instead, as this ACPJ model is discontinued.
Replacement checklist
- ✓ Current-production ACE → ACEJ12X80-50
- ✓ 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 ACPJ12X80-50 FAQ
At 0.5 MPa it pushes 56.5 N and pulls 42.4 N; at 0.7 MPa those rise to 79.2 N and 59.4 N, with a theoretical maximum of 11.5 kgf at 1.0 MPa. The 12 mm bore uses an M5x0.8 port, a 6 mm rod with M3x0.5 female thread, runs at 0.15-1.0 MPa (22-145 psi) and 30-500 mm/s, and the 80 mm stroke is a made-to-order length above the 50 mm standard maximum for this bore.
The -50 code sets a 50 mm window: an external stop screw shortens the 80 mm extend stroke to any length from 30 to 80 mm, and a fixed TPU bumper decelerates the piston at both ends. It is a mechanical stop only - it never holds a load if air is lost. The ACPJ family is discontinued, so order the ACEJ12X80 as the current drop-in and confirm the ISO 21287 mounting dimensions before the swap.
Related AirTAC ACE Cylinders
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